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.
Free Pressure Calculators
25 toolsPSI to bar, atm to Pascal, and pressure conversion calculators. Browse our free pressure tools below — no sign-up required.
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.