Acres to Square Feet Converter
Convert acres to square feet and 7 other area units. Includes landmark comparisons, lot equivalents, and a visual size reference chart.
Free Conversion Calculators
284 toolsConvert length, weight, volume, temperature, speed, pressure, energy, digital storage, and numeral systems with calculators built for everyday work, science, and engineering.
Length & Distance
67 calculatorsMeters to feet, miles to kilometers, inches to centimeters, and more.
Ångström to Nanometer Conversion
Convert ångströms to nanometers and 6 other sub-micro units. Includes molecular bond presets, spectrum visualizer, and atomic-scale reference table.
Astronomical Unit Converter
Convert between astronomical units, kilometers, miles, light-years, and parsecs. Includes planet presets, solar system scale chart, and distance table.
Cent to Square Meter Converter
Convert cents to square meters, square feet, acres, and other Indian land units. Includes plot size presets, visual comparisons, and regional unit table.
Centimeter Converter
Convert centimeters to inches, feet, meters, millimeters, and 4 more units. Includes quick presets, feet-and-inches display, and everyday object size chart.
Crore to Million Converter
Convert crore to million, billion, lakh, and arab. Includes Indian/international notation comparison, real-world value references, and number format table.
Cubic Feet Converter
Convert cubic feet to gallons, liters, cubic meters, cubic yards, and 4 more volume units. Features appliance size comparisons and water utility CCF display.
Cubic Feet to Gallons Converter
Convert cubic feet to US/imperial gallons, liters, quarts, pints, and fluid ounces. Includes water container comparisons, utility billing CCF, and reference table.
Cubic Feet to Pounds Converter
Convert cubic feet to pounds for 15 materials including water, concrete, sand, gravel, soil, and steel. Includes density reference table and weight comparison chart.
Cubic Inches to Gallons Converter
Convert cubic inches to US/imperial gallons, liters, fluid ounces, and quarts. Includes container presets, visual size comparison, and volume reference table.
Cubic Meter Converter
Convert cubic meters to liters, cubic feet, gallons, cubic yards, barrels, and more. Includes household object comparisons, oil barrel conversion, and reference table.
Cubic Meter to Ton Converter
Convert cubic meters to metric tons for 16 materials including concrete, sand, gravel, and soil. Includes density reference, weight comparison bars, and US/imperial ton outputs.
Cubic Yards to Tons Converter
Convert cubic yards to US tons for 14 materials including gravel, sand, topsoil, mulch, and concrete. Includes dump truck load estimator, weight comparison, and density table.
Decimeter to Meter Converter
Convert decimeters to meters, centimeters, millimeters, inches, and feet. Includes metric prefix scale, object size comparison table, and combined feet + inches display.
Feet and Inches Converter
Convert between feet + inches, centimeters, meters, and millimeters. Includes height comparison chart, famous heights reference, and feet-to-cm lookup table.
Feet Converter
Convert feet to meters, inches, centimeters, yards, miles, and millimeters. Includes combined feet + inches display, size comparison visuals, and reference table.
Feet to Inches Converter
Convert feet to inches and back with fractional inch display (⅛, 1/16, 1/32). Includes ruler visualization, combined feet + inches output, and conversion reference table.
Feet to Miles Converter
Convert feet to miles, kilometers, yards, and nautical miles. Includes walking/driving time estimates, distance comparison chart, race distance presets, and reference table.
Feet to Yards Converter
Convert feet to yards, meters, inches, and miles. Includes football field visualization, distance comparison chart, chains output, and reference table.
Foot to Centimeter Converter
Convert feet to centimeters and back with metric-imperial scale bar, combined feet+inches display, and height conversion table for 4′ 0″ through 7′ 0″.
Gaj to Square Yard Converter
Convert gaj to square yards, square feet, square meters, marla, kanal, bigha, and acres. Includes Indian property size comparisons and land unit reference table.
Gallons to Cubic Feet Converter
Convert US/imperial gallons to cubic feet, liters, quarts, and cubic yards. Includes CCF water billing output, water weight, container comparisons, and volume reference table.
Height in Inches Calculator
Convert height to inches from feet-inches, centimeters, or meters. Visual height bar, percentile estimates, reference table with 8 key heights, and multi-unit output.
Inch Converter
Convert inches to and from centimeters, millimeters, feet, meters, yards, micrometers, and miles. Bidirectional conversion with adjustable precision and inch-fraction reference table.
Inch to Meter Converter
Convert inches to meters and meters to inches with high precision. Shows cm, mm, km, feet, yards, miles simultaneously. Includes everyday length references and quick conversion table.
Inch-Pounds to Foot-Pounds Converter
Convert inch-pounds to foot-pounds and back. Shows N·m, kgf·cm, oz·in equivalents plus common torque specs for automotive, bicycle, and mechanical applications.
Inch-Pounds to Newton-Meters Converter
Convert inch-pounds (in·lb) to newton-meters (N·m) and vice versa. Includes foot-pounds, kgf·cm, oz·in outputs, common torque specs table, and conversion factor reference.
Inches to Fraction Calculator
Convert decimal inches to fractional inches at any resolution (1/2 to 1/64). Shows rounding error, mm equivalent, ruler visual, and complete fraction reference table.
Inches to Yards Conversion Calculator
Convert inches to yards and yards to inches. Mixed yard-feet-inches output, metric equivalents, fabric width references, and yardage benchmarks for sewing, sports, and construction.
Katha to Square Feet Converter
Convert katha to square feet with regional standards for Bangladesh, Bihar, West Bengal, Assam, and Jharkhand. Shows m², acres, bigha, hectares, and area size references.
Kilometer Converter
Convert kilometers to miles, meters, feet, yards, nautical miles, and centimeters. Bidirectional conversion with distance references including marathons, race distances, and world landmarks.
Kilometer to Meter Conversion Calculator
Convert kilometers to meters and meters to kilometers. Includes miles, feet, yards, track laps, and race distance reference tables.
Km to Feet Conversion Calculator
Convert kilometers to feet and feet to kilometers. Includes miles, yards, nautical miles, and famous-heights reference table.
Light-Year Conversion Calculator
Convert light-years to kilometers, miles, AU, parsecs, and more. Includes cosmic distance reference table and light travel times.
Lot Size to Square Feet Calculator
Calculate lot area in square feet from dimensions or convert between acres, hectares, square meters, and more. Supports rectangle, circle, and triangle lots.
Mesh to Micron Converter Calculator
Convert US standard sieve mesh sizes to microns, millimeters, and inches. Full 25-row mesh chart with interpolation for non-standard sizes.
Meter Conversion Calculator
Convert meters to and from 9 length units: km, cm, mm, miles, feet, yards, inches, and nautical miles. Includes references and presets.
Meter to Mile Conversion Calculator
Convert meters to miles and miles to meters. Includes km, feet, yards, nautical miles, track laps, and race-distance reference tables.
Metric to Inches Calculator
Convert millimeters, centimeters, meters, or kilometers to inches (decimal and fractional). Includes feet-inches, yards, and common-object reference.
Micrometer (µm) Conversion Calculator
Convert micrometers to nanometers, millimeters, mils, inches, and more. Includes real-world scale reference and SI prefix ladder.
Micron to Mil Conversion Calculator
Convert microns (µm) to mils (thousandths of an inch) and back. Includes mm, inches, nm, and coating/PCB application reference table.
Mil (Thousandths of an Inch) Conversion Calculator
Convert mils to inches, mm, µm, cm, meters, and feet. Includes thickness reference for PCBs, coatings, foils, and common materials.
Mil to Inch Conversion Calculator
Convert mils (thousandths of an inch) to inches, fractional inches, mm, and µm. Includes AWG wire gauge reference and mil/inch quick-reference table.
Mil to mm Conversion Calculator
Convert mils (thousandths of an inch) to millimeters and back. Includes µm, cm, inches outputs, mil↔mm reference table, and metric drill/tap sizes.
Mile Conversion Calculator
Convert miles to kilometers, meters, feet, yards, nautical miles, and more. Includes race distance references and world city-pair distances.
Millimeter Converter
Convert millimeters to cm, inches, feet, meters, yards, and more. Bidirectional mm conversion with reference table and real-world size comparisons.
Million to Billion Converter
Convert between millions, billions, trillions, lakhs, and crores with full numeric expansion and real-world comparisons.
Million to Lakh Converter
Convert millions to lakhs, crores, and other Indian numbering units. Bidirectional converter with Indian formatting and reference tables.
Million to Thousand Converter
Convert millions to thousands, billions, and trillions with abbreviated notation. Full number expansion with salary references.
Milliseconds Converter
Convert milliseconds to seconds, minutes, hours, microseconds, and nanoseconds. Includes FPS frame time, Hz frequency, and latency references.
MM (Millimeters) Conversion Calculator
Convert MM to inches (decimal & fractional), cm, feet, meters, and more. Includes drill bit chart and fractional inch reference.
MM to Inches Converter
Convert millimeters to inches with decimal and fractional display. Bidirectional mm↔inch conversion with visual ruler and reference table.
Newton-Meter Torque Converter
Convert Newton-meters to foot-pounds, inch-pounds, kgf·m, and more. Includes automotive torque specs and real-world torque references.
Number to Million Converter
Convert any number to millions, billions, thousands, and other scales. Shows best abbreviation, word form, and scientific notation.
Pixels to Inches Converter
Convert pixels to inches and cm at any DPI/PPI. Includes print size calculator, screen PPI reference, and typography unit conversion.
PSI to Inches of Water Converter
Convert PSI to inches of water column (inWC) and vice versa. Temperature-compensated conversion with HVAC and gas pressure references.
Square Centimeters to Square Millimeters Converter
Convert cm² to mm² and other area units. Includes wire gauge reference, common area comparisons, and visual area proportions.
Square Feet Converter
Convert square feet to m², yd², acres, hectares, and more. Room size references, area visualization, and complete conversion tables.
Square Feet to Acres Converter
Convert square feet to acres and back. Lot dimension calculator, common lot size comparisons, and complete conversion tables for land measurement.
Square Inch to Square Foot Converter
Convert square inches to square feet and other area units. Tile/material coverage calculator, common material sizes, and complete conversion tables.
Square Meter Converter
Convert m² to ft², yd², acres, hectares, km², and more. Real-world area comparisons, visual scale, and complete conversion tables.
Square Miles to Square Kilometers Converter
Convert mi² to km² and back. Geographic area comparisons from cities to countries, visual scale, and complete conversion tables.
Square Yard Converter
Convert square yards to ft², m², acres, and more. Built-in carpet cost calculator, common area references, and complete conversion tables.
Yard Conversion Calculator
Convert yards to feet, meters, inches, miles, km, and more. Fabric calculator, distance references, and complete conversion tables.
Yard to Meter Conversion Calculator
Convert yards to meters and back with visual comparison. Sports distance references, precise conversion to 8 units, and complete tables.
Yard to Mile Converter
Convert yards to miles and back. Mile progress visualization, running event distances, speed reference, and mile fraction tables.
Yards to Meters Calculator
Convert yards to meters with batch conversion, imperial unit chain reference, 8-unit output, and comprehensive conversion tables.
Weight & Mass
16 calculatorsKilograms to pounds, ounces to grams, and mass conversion calculators.
Decagram to Gram Converter
Convert decagrams (dag) to grams, kilograms, ounces, and pounds. Includes a full metric prefix table and a decagram conversion reference.
Grams to Calories Converter
Convert grams of fat, carbohydrate, protein, or alcohol to calories and kilojoules. Includes macronutrient density table and common food reference.
Grams to Fluid Ounces Converter
Convert grams to fluid ounces and back for 10+ substances. Uses density-based conversion with mL, cups, tablespoons, and teaspoons outputs.
Grams to mL / mL to Grams Converter
Convert between grams and milliliters for 10+ substances including water, milk, honey, oil, flour, and sugar. Accounts for density differences.
Kilograms to Stone Converter
Convert kilograms to stone and pounds, with a stone-pound breakdown, kg-to-stone table, and BMI reference for your weight at various heights.
Lbs to Pounds & All Weight Units Converter
Convert lbs (pounds) to kilograms, stone, ounces, grams, and tons. Clarifies the lbs vs. lb abbreviation and provides a full conversion table.
Lbs to Stone Converter
Convert pounds (lbs) to stone with a traditional st-lb breakdown. Includes a comprehensive lbs-to-stone table and kilograms equivalents.
Newtons to Joules Calculator
Convert newtons and distance into joules (energy). Supports multiple force and distance units with BTU, calories, kWh, and foot-pounds output.
Pounds to Grams Converter
Convert pounds (lbs) to grams, kilograms, ounces, milligrams, and stone. Includes a comprehensive conversion table and visual scale.
Pounds to Lbs & Weight Unit Converter
Convert pounds to lbs, kilograms, stone, ounces, and grams. Clarifies that pounds and lbs are the same unit and provides a comprehensive kg-to-lbs table.
Pounds to Newtons Converter
Convert pounds-force (lbf) to newtons, kilonewtons, kilogram-force, and dynes. Includes adjustable gravity and a comprehensive reference table.
Pounds to Stone Converter
Convert pounds to stone with a visual scale and comprehensive reference table. Shows stone-and-pounds breakdown plus kilograms for every value.
Stone to Kilograms Converter
Convert stone (and pounds) to kilograms with a detailed st-to-kg table. Enter stone & extra pounds for precise UK-to-metric body weight conversion.
Stone to Lbs (Pounds) Converter
Convert stone and pounds to lbs, kilograms, ounces, and grams. Enter stone + extra pounds for accurate UK-to-US weight conversion.
Tablespoons to Grams Converter
Convert tablespoons (tbsp) to grams for 10 common ingredients. Density-aware cooking converter with a full ingredient reference table.
Teaspoons to Grams Converter
Convert teaspoons (tsp) to grams for 12 common ingredients. Density-aware cooking converter with ingredient reference table and visual comparison.
Volume
45 calculatorsLiters to gallons, cups to milliliters, and fluid volume converters.
Barometric Pressure Converter
Convert barometric pressure between atmospheres, bar, PSI, kPa, mmHg, inHg, hectopascals, and millibars. Includes reference pressure table and preset values.
CC to Grams Converter
Convert cubic centimeters (cc/mL) to grams and back for water, flour, sugar, oil, honey, and 5 more substances. Includes density chart and reference table.
CC to Liter Converter
Convert cubic centimeters (cc) to liters and back. Also shows mL, dL, gallons, fluid ounces, cups, pints, quarts, and cubic meters. Reference table included.
CC to mL Converter
Confirm that cc and mL are identical and convert to 10 other volume units including liters, fluid ounces, cups, pints, quarts, and gallons. Reference table included.
CC to Oz Converter
Convert cubic centimeters (cc) to fluid ounces and back. Supports US and imperial fl oz with instant cross-unit results for 10 volume units.
CCF to Gallons Conversion
Convert CCF (centum cubic feet) to gallons and vice versa. Includes utility cost estimation, household usage table, and multi-unit results.
Cups to Gallons Converter
Convert cups to gallons and gallons to cups. Supports US, metric, and imperial cups with fraction display, fill bar, and recipe volume table.
Cups to Oz Converter
Convert cups to fluid ounces (and back) for US, metric, and imperial cups. Shows tablespoons, teaspoons, pints, and more with a quick-reference table.
Cups to Pints Converter
Convert cups to pints and pints to cups for US and imperial systems. Includes quarts, gallons, fluid ounces, and a kitchen volume reference table.
Cups to Quarts Converter
Convert cups to quarts and quarts to cups for US and imperial systems. Shows pints, gallons, fluid ounces, liters, and a US volume ladder chart.
Fluid Ounces to Cups Converter
Convert fluid ounces (fl oz) to cups and back. US and imperial systems, fraction display, cup visualization, and fraction-to-ounce reference table.
Fluid Ounces to Pounds Conversion
Convert fluid ounces to pounds and pounds to fluid ounces using liquid density. Preset densities for water, milk, honey, oil, and more.
Gallon Converter
Convert between US liquid, imperial, and dry gallons. Shows liters, quarts, pints, cups, fluid ounces, and cubic feet with a gallon-type comparison chart.
Gallon to Tons Converter
Convert gallons to tons (short, long, metric) and back. Density-aware with presets for water, diesel, gasoline, crude oil, and more.
Gallons to Cups Converter
Convert gallons to cups and cups to gallons for US and imperial systems. Visual cup-count grid, recipe reference table, and multi-unit output.
Gallons to Grams Converter
Convert gallons to grams and grams to gallons using liquid density. Presets for water, milk, oil, honey, and gasoline with a grams-per-gallon table.
Gallons to Pints Converter
Convert gallons to pints and pints to gallons for US and imperial systems. Includes quarts, cups, fluid ounces, liters, and container reference table.
Gallons to Pounds Converter
Convert gallons to pounds and pounds to gallons. Density presets for water, milk, honey, oil, gasoline, and diesel with a weight-per-gallon reference table.
Gallons to Quarts Converter
Convert gallons to quarts and quarts to gallons for US and imperial systems. Shows pints, cups, fluid ounces, liters with a volume hierarchy chart.
Grams to Liters Converter
Convert grams to liters and liters to grams using liquid density. Presets for water, milk, oil, honey, and ethanol with density comparison chart.
Imperial to Metric Volume Converter
Convert imperial volume units to metric — fluid ounces, cups, pints, quarts, and gallons to milliliters, centiliters, and liters with comparison chart.
Imperial Volume Converter
Convert between all imperial volume units — fluid ounces, cups, pints, quarts, and gallons — for US and British systems with scale chart and comparison table.
Kilograms to Gallons Converter
Convert kilograms to US gallons and gallons to kilograms using liquid density. Presets for water, milk, oil, gasoline, and diesel with kg-per-gallon reference.
Kilograms to Liters Converter
Convert kilograms to liters and liters to kilograms using liquid density. 8 liquid presets, volume comparison chart, and liters-per-kg reference table.
Kilograms to Ounces Converter
Convert kilograms to ounces and ounces to kilograms. Shows pounds, grams, milligrams, stones, and tonnes with weight comparison chart and lookup table.
Liters to cc (Cubic Centimeters) Converter
Convert liters to cubic centimeters (cc/mL) and cc to liters. Includes metric sub-units, cubic inches, US volumes, and engine displacement reference table.
Liters to Centiliters Converter
Convert liters to centiliters (cL) and centiliters to liters. Includes mL, dL, fl oz, cups, pints, and tablespoons with European drink size reference.
Liters to Pounds Converter
Convert liters to pounds and pounds to liters using liquid density. Presets for water, milk, oil, honey, gasoline, and diesel with lbs-per-liter table.
Metric to Imperial Volume Converter
Convert metric volumes (mL, cL, dL, L) to US and imperial units — fluid ounces, cups, pints, quarts, and gallons with container comparison chart.
Metric to SAE Socket & Wrench Converter
Find the closest SAE (fractional inch) socket or wrench size for any metric bolt. Fit quality indicator, cross-reference table, and size-difference analysis.
Metric to Standard Volume Converter
Convert metric volumes (mL, cL, dL, L) to US standard units — teaspoons, tablespoons, fluid ounces, cups, pints, quarts, and gallons with cheat sheet.
Metric Volume Converter
Convert between all metric volume units — mL, cL, dL, L, daL, hL, kL, cc, and cubic meters. Prefix scale table, bar chart, and everyday examples.
Milligrams to Tablespoons Converter
Convert milligrams (mg) to tablespoons with density selection for 8 common liquids. Tablespoon tally, density comparison table, and reference chart.
Milligrams to Teaspoons Converter
Convert milligrams (mg) to teaspoons with density selection for 8 common liquids. Fill-level gauge, drop count, density comparison table, and reference chart.
Milliliters to Cups Converter
Convert milliliters (mL) to cups and back. Supports US, metric, imperial, and Japanese cups with fraction display, fill chart, and standard comparison.
Ounces to Kilograms Converter
Convert ounces (oz) to kilograms (kg) and back. Includes grams, pounds, mixed lbs+oz, stones, weight scale chart, and everyday item comparison.
Ounces to Pounds Converter
Convert ounces (oz) to pounds (lbs) and back. Mixed lbs+oz format, fraction display, grams, kilograms, pound progress bars, and everyday weight comparison.
Pints to Cups Converter
Convert pints to cups and back. US and imperial systems, cup tally visualization, volume hierarchy bars, and reference table with fl oz, mL, and quarts.
Pints to Gallons Converter
Convert pints to gallons and back. US and imperial systems, gallon-jug fill visualization, volume hierarchy table, and extended reference chart.
Pints to Pounds Converter
Convert pints to pounds with density selection for 8 common liquids. Tests the "pint's a pound" rule, mixed lbs+oz, density comparison table, and reference chart.
Pounds & Ounces Calculator
Convert between pounds, ounces, and mixed lbs+oz. Three input modes, baby weight presets, pound breakdown bars, everyday items table, and reference chart.
Pounds to Ounces Converter
Convert pounds (lbs) to ounces (oz) and back. Mixed lbs+oz format, grams, kg, stones, ounce scale bars, standard package sizes, and reference table.
Quarts to Cups Converter
Convert quarts to cups and back. US and imperial, nearest fraction display, cup tally visual, volume ladder, and extended reference table.
Quarts to Gallons Converter
Convert quarts to gallons and back. US and imperial systems, gallon-fill jug visualization, volume hierarchy table, common products, and reference chart.
Quarts to Pounds Converter
Convert quarts to pounds with 7 liquid density presets. Density comparison bars, reference table, mixed lbs+oz, metric equivalents, and water-based lookup chart.
Temperature
7 calculatorsCelsius, Fahrenheit, Kelvin, and Rankine temperature converters.
Celsius Converter
Convert Celsius to Fahrenheit, Kelvin, and Rankine. Visual thermometer, comfort zone indicator, conversion formulas, and reference temperature table.
Celsius to Fahrenheit Converter
Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine. Visual thermometer, simultaneous conversion, reference temperature table with 12 key points, and quick conversion formulas.
Centigrade to Celsius Converter
Are centigrade and Celsius the same? Yes! Convert to Fahrenheit, Kelvin, Rankine, Réaumur, and more. History of the name change, all scales comparison.
Fahrenheit Converter
Convert Fahrenheit to Celsius, Kelvin, and Rankine. Weather comfort ranges, oven temperature guide, thermometer visualization, and preset reference values.
Kelvin Converter
Convert Kelvin to Celsius, Fahrenheit, and Rankine. Cosmic temperature scale, light color temperature preview, absolute zero warning, and universe reference table.
Kelvin to Celsius Converter
Convert Kelvin to Celsius and Celsius to Kelvin. Visual dual scale, step-by-step conversion work, absolute zero validation, and reference temperature table.
Kelvin to Fahrenheit Converter
Convert Kelvin to Fahrenheit and Fahrenheit to Kelvin. Two-step breakdown, dual scale visualization, direct and alternative formulas, notable temperatures table.
Area
5 calculatorsSquare meters to square feet, acres to hectares, and area converters.
Acreage Calculator
Calculate acreage from square feet, square meters, hectares, or square miles. Visual area bar, real-world comparisons, square-side dimension, and conversion factors table.
Acres to Hectares Converter
Convert acres to hectares and hectares to acres. Visual scale comparison, quick conversion table, square-side dimensions, and real-world size comparisons.
Ares to Hectares Converter
Convert ares to hectares and hectares to ares. Visual 10×10 are grid, metric area hierarchy, quick conversion table, and square feet/meters output.
Hectares to Acres Converter
Convert hectares to acres and acres to hectares. Football field equivalents, quick conversion table, world farm sizes, and small country comparisons.
Lot Size to Acres Calculator
Calculate acreage from lot dimensions or square footage. Perimeter, fencing estimate, acre percentage bar, standard lot dimensions guide, and residential lot categories.
Speed
2 calculatorsMPH to KPH, knots to MPH, and speed conversion calculators.
Knots to km/h Calculator
Convert knots to kilometers per hour and vice versa. Includes mph, m/s, Mach, Beaufort scale, and full speed reference tables.
Knots to MPH Calculator
Convert knots to miles per hour and back. Shows km/h, m/s, Mach, Saffir-Simpson hurricane category, and speed comparison visuals.
Pressure
25 calculatorsPSI to bar, atm to Pascal, and pressure conversion calculators.
ATM Pressure Converter
Convert atmospheres (atm) to and from Pascals, kPa, bar, psi, mmHg, Torr, and inHg. Bidirectional conversion with preset values, reference table, and quick formulas.
ATM to Pascals Converter
Convert between atmospheres (atm) and Pascals (Pa). Bidirectional converter with kPa, hPa, mbar, and bar outputs, reference table, and preset values.
Bar to ATM Converter
Convert between bar and atmospheres (atm) with bidirectional conversion, PSI/kPa/mmHg equivalents, reference table, and preset values.
Bar to PSI Converter
Convert between bar and PSI (pounds per square inch) with bidirectional conversion, reference table for tires, hydraulics, and industrial applications.
Bar to PSIG Converter
Convert bar to PSIG, PSIA, kPa, atm, and mmHg. Handles gauge vs. absolute pressure with adjustable atmospheric baseline.
kg/cm² to PSI Converter
Convert kg/cm² to PSI and vice versa. Also shows bar, kPa, atm, mmHg. Includes a 17-row reference table and unit comparison visuals.
kPa Pressure Converter
Convert kilopascals (kPa) to and from Pa, bar, atm, psi, and mmHg with bidirectional conversion, reference table, and preset values.
kPa to ATM Converter
Convert between kilopascals and atmospheres with bidirectional conversion, Pa/bar/psi equivalents, and reference table.
kPa to mmHg Converter
Convert between kilopascals and millimeters of mercury (mmHg) for medical, scientific, and weather applications.
kPa to PSI Converter
Convert between kilopascals and PSI with bidirectional conversion, bar/atm equivalents, and application reference table.
ksi to MPa Converter
Convert between ksi (kilopounds per square inch) and MPa (megapascals) for engineering and material science applications.
ksi to PSI Converter
Convert between ksi (kilopounds per square inch) and PSI with MPa equivalents for engineering stress calculations.
Lbs to PSI Calculator
Calculate PSI from force (pounds) and area (square inches). Not a direct unit conversion — PSI = force ÷ area.
mmHg to ATM Converter
Convert between millimeters of mercury (mmHg) and atmospheres with bidirectional conversion and reference pressures.
mmHg to ATM Converter
Convert between millimeters of mercury and atmospheres for medical, scientific, and weather applications.
MPa Pressure Converter
Convert megapascals (MPa) to and from kPa, Pa, bar, psi, atm, and ksi for engineering and material science.
MPa to PSI Converter
Convert between megapascals and PSI for engineering stress, material properties, and hydraulic system specifications.
MPa to PSIG Converter
Convert between MPa (absolute) and PSIG (gauge) with PSIA comparison for industrial pressure applications.
Pascal Pressure Converter
Convert Pascals (Pa) to and from kPa, MPa, bar, atm, psi, and mmHg. The SI unit of pressure made easy.
Pascals to PSI Converter
Convert between Pascals (Pa) and PSI with kPa, bar, atm, and mmHg equivalents for scientific and engineering use.
PSI Pressure Converter
Convert PSI to and from bar, kPa, atm, Pa, mmHg, and ksi. Useful for automotive, pneumatic, hydraulic, and industrial pressure checks.
PSI to ATM Converter
Convert between PSI and atmospheres with bidirectional conversion, reference pressures, and diving depth equivalents.
PSI to GPM Calculator
Calculate flow rate (GPM) from pressure (PSI) using pipe diameter and orifice equations for plumbing and fire protection.
PSIG to PSIA Converter
Convert between gauge pressure (PSIG) and absolute pressure (PSIA) with bar and kPa equivalents. Useful for compressors, vacuum systems, and pressure vessel specs.
Torr to ATM Converter
Convert between Torr and atmospheres for vacuum technology, gas systems, and laboratory applications.
Energy
5 calculatorsJoules to calories, BTU to kWh, and energy unit converters.
CCF to Therms Converter
Convert CCF (hundred cubic feet) of natural gas to therms, BTU, MMBTU, kWh, and megajoules. Adjustable BTU content for precise utility billing.
dBm to Watts Converter
Convert dBm to watts, milliwatts, microwatts, and dBW. Bidirectional converter with Vrms for 50Ω systems and a practical reference table.
Joules to Volts Calculator
Convert joules to volts given charge in coulombs. Supports 4 modes: J+C→V, V+C→J, J+A+s, and Wh→J with comprehensive reference tables.
RMS to Watts Converter
Convert RMS voltage to watts for any impedance. Bidirectional: Vrms→W, W→Vrms, Vpeak→Vrms. Shows Vpeak, Vpp, Irms, dBm, and dBW.
Torque to Horsepower Calculator
Convert torque (N·m or ft·lb) and RPM to horsepower, kilowatts, and metric PS. Includes a torque×RPM power table for automotive reference.
Digital
6 calculatorsBits to bytes, MB to GB, and digital storage converters.
Binary Converter
Convert between binary, octal, decimal, and hexadecimal. Bit visualization, powers of 2 reference, even/odd detection, and grouped binary output.
Binary to Hexadecimal Converter
Convert binary to hexadecimal and hex to binary with step-by-step conversion, bit visualization, nibble grouping, and a complete hex-binary reference table.
Binary to Octal Converter
Convert binary to octal and octal to binary. Step-by-step 3-bit grouping, Unix file permissions decoder, common chmod values, and complete reference table.
Byte Converter
Convert between bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes. Binary (1024) and decimal (1000) standards, visual scale bar, and storage reference.
Decimal to Hexadecimal Converter
Convert decimal to hexadecimal and hex to decimal. Step-by-step division method, CSS color preview, ASCII table, and common hex values reference.
Kilobytes to Megabytes Converter
Convert between KB, MB, GB, and TB in binary (1024) or decimal (1000) standards. Transfer time estimates, file capacity chart, and visual scale bar.
Binary, octal, decimal, hexadecimal, and Roman numeral converters.
Calculators coming soon.
Time
21 calculatorsTime unit conversion calculators — seconds, minutes, hours, days, weeks, months, years.
Day Converter
Convert days to hours, minutes, seconds, weeks, months, and years with preset examples, breakdown display, and reference duration tables.
Days to Months Converter
Convert days to months using average, 30-day, or 31-day methods with breakdown display, decimal precision control, and reference tables.
Days to Years Converter
Convert days to years with average, common, and leap year options. Shows breakdown in years, months, days plus reference milestone table.
Degrees Minutes Seconds Converter
Convert between DMS and decimal degrees with bidirectional modes, radians output, arc-minute/second totals, and world landmarks reference.
Degrees to Minutes Converter
Convert degrees to arc-minutes, arc-seconds, radians, and gradians with ground distance equivalents and a comprehensive reference table.
Degrees to Seconds Converter
Convert degrees to arc-seconds, arc-minutes, radians, milliradians, and gradians with ground distance equivalents and resolution reference.
Hour Converter
Convert hours to minutes, seconds, days, weeks, months, and years with bidirectional input and time breakdown display.
Hours to Weeks Converter
Convert hours to calendar weeks and work weeks with customizable work schedule, visual proportion bar, and comprehensive reference table.
Hours to Years Converter
Convert hours to years, months, weeks, and days with milestone markers, preset values for common hour counts, and a comprehensive reference table.
Milliseconds to Seconds Converter
Convert milliseconds to seconds, microseconds, nanoseconds, and minutes. Includes FPS frame-time context and a performance reference table.
Minute Converter
Convert minutes to hours, seconds, days, weeks, months, and years with bidirectional multi-unit support and quick conversion table.
Minutes to Days Converter
Convert minutes to days, hours, weeks, months, and years with natural breakdown, precision control, and comprehensive reference table.
Minutes to Decimal Hours Converter
Convert minutes to decimal hours with billing increment rounding, bidirectional conversion, and a complete 0-60 minute reference table.
Minutes to Years Converter
Convert minutes to years, months, weeks, days, and hours with natural breakdown display and a reference table for large minute counts.
Months to Years Converter
Convert months to years, days, weeks, and hours with natural years-and-months breakdown, presets for common terms, and a comprehensive table.
Seconds Converter
Convert seconds to minutes, hours, days, weeks, years, milliseconds, and nanoseconds with a natural breakdown and comprehensive reference table.
Seconds to Days Converter
Convert seconds to days, hours, minutes, and weeks with a natural breakdown, day-progress bar, and a comprehensive reference table.
Seconds to Years Converter
Convert seconds to years, months, weeks, days, and hours with a natural breakdown and a reference table spanning days to centuries.
Weeks to Months Converter
Convert weeks to months, days, years, and hours. Includes a months-and-days breakdown, pregnancy and project timeline context, and an extensive table.
Weeks to Years Converter
Convert weeks to years, months, days, and hours. Features a years-and-weeks breakdown, presets for common durations, and a context-labeled reference table.
Years to Decades Converter
Convert years to decades, centuries, millennia, months, days, and hours. Includes a historical era reference and an extensive years-to-decades table.
Currency & Financial
7 calculatorsCents to dollars, crore to lakh, and financial unit converters.
Billion to Trillion Converter
Convert between billions, trillions, millions, thousands, and quadrillions. See scientific notation, real-world perspective comparisons, and a reference table of notable amounts.
Cents to Dollars Converter
Convert cents to dollars and dollars to cents. See coin breakdowns, optimal change using fewest coins, and a US coin reference table with weights and dimensions.
Cents to Euros Converter
Convert US cents to euros and euro cents. Adjustable exchange rate, quick conversion table, historical EUR/USD rates, and euro coin denomination reference.
Crore to Lakh Converter
Convert between crores, lakhs, arab, kharab, and western millions/billions. Indian numbering system cross-reference, comma placement, and scale comparison tables.
Dimes to Dollars Converter
Convert dimes to dollars and dollars to dimes. Roll calculator, weight estimation, equivalent in other denominations, and a quick conversion reference table.
Nickels to Dollars Converter
Convert nickels to dollars and dollars to nickels. Roll calculator, weight estimation, denomination equivalents, and nickel specifications reference.
Pennies to Dollars Converter
Convert pennies to dollars and dollars to pennies. Roll calculator, weight estimation, savings challenge calculator, and penny specifications reference table.
General
4 calculatorsDensity, measurement, angle, and miscellaneous unit conversion tools.
Degrees to Radians Calculator
Convert degrees to radians and vice versa. Includes unit circle visual, trig values, and a 16-row reference table of common angles.
Density Converter Calculator
Convert density between kg/m³, g/cm³, lb/ft³, and more. Includes specific gravity, floatation check, and a 20-material reference table.
Measurement Converter
Convert between units of length, area, volume, mass, and temperature. 50+ units, all-in-one table, and reference points in one tool.
Radians to Degrees Calculator
Convert radians to degrees and back. Shows DMS notation, milliradians, gradians, trig values, quadrant info, and a 17-row reference table.
Other
74 calculatorsSpecialized and less common unit conversion calculators.
Capacitance Conversion Calculator
Convert capacitance between picofarads, nanofarads, microfarads, millifarads, and farads. Common capacitor presets, charge estimation, and reference table for electronic components.
Case Converter (Lowercase ↔ Uppercase)
Convert text between uppercase, lowercase, title case, sentence case, toggle case, and programming naming conventions like camelCase and snake_case.
Centimeters to Inches Converter
Convert centimeters to inches and inches to centimeters. Visual comparison bar, common object reference table, plus millimeters, feet, and meters outputs.
Centimeters to Kilometers Converter
Convert between centimeters and kilometers with metric ladder, miles output, log-scale visualization, and real-world distance reference table. Bidirectional and instant.
Centimeters to Meters Converter
Convert centimeters to meters and meters to centimeters. Includes metric unit ladder, mm/km/inches/feet outputs, size visualization, presets, and real-world reference table.
Centimeters to Millimeters Converter
Convert between centimeters and millimeters. Also shows meters, inches, micrometers, and typographic points. Ruler visualization, quick table, and common object size reference.
CGS to SI Unit Converter
Convert between CGS and SI units for force, energy, pressure, viscosity, magnetic fields, and more. Covers dyne, erg, gauss, poise, stokes, barye, and all major CGS quantities.
CM to Feet and Inches Converter
Convert centimeters to feet and inches or feet and inches to centimeters. Includes decimal feet, meters, yards, preset values, and a real-world reference length table.
CM to Height Conversion Calculator
Convert height between centimeters and feet & inches. Visual height bar, percentile estimation, preset heights, and a full reference table from 4'10" to 6'8".
Decimeter Conversion Calculator
Convert decimeters to and from millimeters, centimeters, meters, kilometers, inches, feet, and yards. Metric ladder, presets, all-unit table, and object size reference.
Dimensional Analysis Calculator
Build step-by-step conversion factor chains for dimensional analysis. Editable multi-step conversion with running totals, presets for mph→m/s, atm→Pa, kg→lb, and common factor reference.
Distance Converter
Convert between 11 distance units: mm, cm, m, km, inches, feet, yards, miles, nautical miles, furlongs, and leagues. Presets, visual bars, and quick reference table.
Drops to mL Converter
Convert between drops and milliliters with selectable dropper types (standard, medical, essential oil, fine). Teaspoon fill bar, common dosage table, and bidirectional conversion.
Feet to Meters Converter
Convert feet to meters and meters to feet. Also shows inches, centimeters, yards, and kilometers. Quick table, real-world reference heights, and visual bar.
Gallons to Kilograms Converter
Convert US gallons to kilograms for water, milk, oil, honey, gasoline, and custom densities. Bidirectional with pounds, liters, fluid ounces, and liquid weight comparison table.
GPS Coordinates Converter
Convert between decimal degrees and DMS (degrees, minutes, seconds) coordinate formats. Includes radians, decimal minutes, city presets, and a landmark reference table.
Grams to Milliliters Converter
Convert grams to mL and mL to grams for water, flour, sugar, oil, honey, and custom substances. Shows teaspoons, tablespoons, cups, and fluid ounces with density table.
Grams to Ounces Converter
Convert grams to ounces and ounces to grams. Also shows pounds, kilograms, troy ounces, and lb+oz mixed notation. Quick table and everyday weight reference.
Grams to Pounds Converter
Convert grams to pounds and pounds to grams. Also shows ounces, kilograms, stone, and pounds-ounces mixed notation. Quick table and everyday weight reference.
Grams to Teaspoons Converter
Convert grams to teaspoons for sugar, salt, flour, baking powder, cinnamon, cocoa, yeast, and custom ingredients. Shows tablespoons, cups, and ingredient comparison table.
Hardness Conversion Calculator
Convert between Vickers (HV), Brinell (HB), Rockwell C (HRC), Rockwell B (HRB), and Mohs hardness scales. Material presets, log-scale bar, and hardness reference table.
Inches to Centimeters Converter
Convert inches to centimeters and cm to inches. Also shows mm, meters, feet, and feet+inches. Quick table, visual meter bar, and object size reference.
KG to mL Converter
Convert kilograms to milliliters and back using substance density. Includes common densities for water, milk, oil, honey, and more.
Kilograms to Pounds Converter
Convert kilograms to pounds and pounds to kilograms. Shows ounces, stone, grams, lb+oz and st+lb mixed notation. Quick table and everyday weight reference.
Land Area Converter
Convert land area between acres, hectares, square feet, square meters, square miles, and regional units. Includes land valuation and size comparisons.
Lat/Long to UTM Converter
Convert latitude and longitude coordinates to UTM (Universal Transverse Mercator) including easting, northing, zone, grid convergence, and scale factor.
Leet Speak (1337) Converter
Convert text to and from leet speak with basic, advanced, and extreme styles. Full character mapping table, substitution statistics, and live preview.
Liters to Gallons Converter
Convert liters to US gallons, UK gallons, quarts, pints, cups, and fluid ounces. Includes price calculator and volume reference table.
MB to GB Converter
Convert between bytes, KB, MB, GB, TB, and PB using binary or decimal standards. Includes binary vs decimal comparison and storage content reference.
Mbps Bandwidth Converter
Convert between Mbps, Gbps, Kbps, MB/s, GB/s, and KB/s. Includes download time calculator and connection speed reference table.
Mbps to Gbps Converter
Convert between Mbps and Gbps with Tbps, Kbps, MB/s, and GB/s outputs. Includes transfer time estimator and network standard comparison table.
Meters per Second to km/h Converter
Convert m/s to km/h, mph, knots, ft/s, and Mach. Includes speed context visualization, reference table, batch mode, and 6 input units.
Meters to Feet Converter
Convert meters to feet and inches with fractional display. Shows yards, cm, mm, and km with length reference table and visual scale bar.
Micrograms to Milligrams Converter
Convert micrograms (mcg/μg) to milligrams (mg) and vice versa. Includes vitamin/mineral dosage reference, IU conversions, and medication safety warnings.
Micrograms to Milliliters Converter
Convert micrograms (mcg) to milliliters (mL) using concentration or density. Includes dosage volume table and medical safety guidance.
Milligrams to Cubic Centimeters Converter
Convert milligrams (mg) to cubic centimeters (cc/mL) using substance density. Includes 8 density presets, volume comparison table, and medical volume units.
Milligrams to Milliliters Converter
Convert milligrams (mg) to milliliters (mL) using density or concentration. Supports cooking, pharmacy, and lab applications with 8 substance presets.
Milligrams to Pounds Converter
Convert milligrams (mg) to pounds (lbs) with ounces, grams, kilograms, stones, and grains. Includes weight reference table and visual scale bar.
Milliliters to Cubic Centimeters Converter
Convert mL to cc (they are equal) with additional conversions to liters, fl oz, cups, drops. Includes volume reference table and medical syringe guide.
Milliliters to Fluid Ounces Converter
Convert mL to fluid ounces (US and UK). Includes cups, pints, gallons, US vs Imperial comparison, and common container size reference table.
Milliliters to Kilograms Converter
Convert milliliters (mL) to kilograms (kg) using substance density. Includes 8 density presets, mass comparison table, and imperial unit outputs.
Milliliters to Microliters Converter
Convert mL to μL (microliters) with nanoliter and picoliter scales. Includes volume scale reference and laboratory pipette/container guide.
Milliliters to Pounds Converter
Convert milliliters (mL) to pounds (lbs) using substance density. Includes 8 density presets, weight comparison table, and fluid oz vs weight oz clarification.
Milliliters to Tablespoons Converter
Convert mL to tablespoons with US, metric, UK, and Australian standards. Includes cooking volume reference and multi-standard comparison table.
Milliliters to Teaspoons Converter
Convert mL to teaspoons (metric and US) with medicine dosage reference and cooking ingredient weight table. Includes tbsp, fl oz, cups, and drops.
Millimeters to Feet Converter
Convert millimeters to feet and inches. Includes batch conversion, fraction display, reference table, and multi-unit output for mm ↔ ft.
Millimeters to Kilometers Converter
Convert millimeters to kilometers and back with scientific notation support, batch mode, multi-unit output, and a comprehensive reference table.
Millimeters to Meters Converter
Convert millimeters to meters with precision control, visual scale bar, batch processing, reference table, and multi-unit output including imperial.
Nanometer Converter
Convert nanometers to micrometers, millimeters, ångströms, inches, and more. Visible light spectrum indicator, scale reference table, and batch mode.
Nautical Miles Converter
Convert nautical miles to kilometers, statute miles, meters, feet, cables, and fathoms. Includes maritime distance context table and batch mode.
Newton-Meters to Foot-Pounds Converter
Convert torque from N·m to ft·lb, in·lb, kgf·cm, and more. Includes torque spec reference table, visual torque class indicator, and batch mode.
Newton-Meters to Inch-Pounds Converter
Convert N·m to inch-pounds (in·lbs) for low-torque applications. Includes ft·lb, kgf·cm, oz·in output, torque spec reference, and batch mode.
Number to Billion / Million / Crore Converter
Convert numbers between billions, millions, trillions, lakhs, and crores. Shows number in words, scientific notation, and Western vs Indian numbering.
Ounces to Cubic Centimeters (cc) Converter
Convert fluid ounces to cc (cubic centimeters / mL) for medical and cooking use. Includes liters, cups, tablespoons, reference table, and batch mode.
Ounces to Milliliters Converter
Convert fluid ounces to milliliters and back. Shows cups, liters, tablespoons, pints, gallons. Common volume reference table and batch mode.
Paper Quantity Converter
Convert between sheets, quires, reams, bundles, bales, cartons, and pallets. Calculates paper weight and stack height by paper type and GSM.
Pounds to Grams Converter
Convert pounds to grams and vice versa. Shows results in kg, oz, mg, stones, and troy ounces with common weight references and visual scale.
Pounds to Kilograms Converter
Convert pounds to kilograms with stones, ounces, grams output. Includes optional BMI calculator, body weight reference table, and visual weight bar.
PPM to mg/L Converter
Convert between ppm, mg/L, ppb, percent, µg/L, g/L, and molarity. Includes solution density correction and EPA/WHO water quality reference.
Pressure Unit Converter
Convert between 13 pressure units: Pa, kPa, MPa, bar, atm, PSI, mmHg, inHg, cmH₂O, kg/cm², and more with batch mode and context table.
PX to EM / REM Converter
Convert between CSS units: px, em, rem, pt, %, vw, and ch. Includes type scale ratios, quick reference table, and live size preview.
Quantity Converter
Convert between 38+ units across 5 categories: length, mass, volume, area, and speed. SI and imperial units with full cross-reference tables.
Radiation Dose Converter
Convert between Sv, mSv, µSv, rem, mrem, Gy, mGy, rad, and Röntgen. Shows risk level, dose equivalences, and weighting factors.
Roman Numeral Converter
Convert between Roman numerals and Arabic numbers (1–3999). Visual breakdown, symbol reference, subtractive rules, and range table.
Scale Conversion Calculator
Convert between actual and scale model/map dimensions. Supports any ratio, 8 length units, area/volume scaling, and 15 common scale references.
Tablespoon to Milliliter Converter
Convert tablespoons to mL and back. Supports US, UK/metric, and Australian tablespoons with quick reference table and regional differences.
Teaspoon to Milliliter Converter
Convert teaspoons to mL and back. Supports US, metric, and UK teaspoons with quick reference, medicine dosing table, and visual volume indicator.
Time Unit Converter
Convert between 12 time units from nanoseconds to centuries. Human-readable breakdown, context references, and full cross-reference table.
Time Zone Converter
Convert times between 33 world time zones. World clock, business hours overlap, 24/12-hour format, and quick pairs for major city routes.
Typing Speed Converter (CPS / WPM / KPH)
Convert between characters per second, words per minute, keystrokes per hour, and characters per minute. Typing speed tier classification, presets, and reference table.
Unit Conversion Calculator
All-in-one unit converter for length, weight, volume, area, speed, and temperature. Bidirectional with swap, conversion factor, scientific notation, and full unit table.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds, ISO 8601, RFC 2822, relative time, and code snippets.
Uppercase to Lowercase Converter
Convert text between uppercase, lowercase, title case, camelCase, snake_case, kebab-case, and 12 total case styles with text statistics and composition visual.
Weird & Unusual Unit Converter
Convert between 21 unusual length units: smoots, furlongs, football fields, blue whales, bananas, beard-seconds, cubits, parsecs, and more. Fun facts included.