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.
kPa Pressure Converter
Convert kilopascals (kPa) to and from Pa, bar, atm, psi, and mmHg with bidirectional conversion, reference table, and preset values.
kPa
Pascals (Pa)⧉
1,000.00 Pa
Converted from kPa
Bar⧉
0.01 bar
Converted from kPa
Atmospheres (atm)⧉
0.01 atm
Converted from kPa
PSI⧉
0.15 psi
Converted from kPa
mmHg⧉
7.50 mmHg
Converted from kPa
Conversion Table
| kPa | Pa | bar | atm | psi | mmHg |
|---|---|---|---|---|---|
| 0.01 | 10.00 | 0.00 | 0.00 | 0.00 | 0.08 |
| 0.10 | 100.00 | 0.00 | 0.00 | 0.01 | 0.75 |
| 0.50 | 500.00 | 0.01 | 0.00 | 0.07 | 3.75 |
| 1.00 | 1,000.00 | 0.01 | 0.01 | 0.15 | 7.50 |
| 2.00 | 2,000.00 | 0.02 | 0.02 | 0.29 | 15.00 |
| 5.00 | 5,000.00 | 0.05 | 0.05 | 0.73 | 37.50 |
| 10.00 | 10,000.00 | 0.10 | 0.10 | 1.45 | 75.01 |
| 50.00 | 50,000.00 | 0.50 | 0.49 | 7.25 | 375.03 |
| 100.00 | 100,000.00 | 1.00 | 0.99 | 14.50 | 750.06 |
| 1,000.00 | 1,000,000.00 | 10.00 | 9.87 | 145.04 | 7,500.64 |
Quick Formulas
kPa → Pa⧉
Pa = kPa × 1,000
Multiply by 1000
kPa → bar⧉
bar = kPa ÷ 100
Divide by 100
kPa → atm⧉
atm = kPa ÷ 101.325
Divide by 101.325
kPa → psi⧉
psi = kPa × 0.14504
Multiply by 0.14504
kPa → mmHg⧉
mmHg = kPa × 7.5006
Multiply by 7.5006
Pa → kPa⧉
kPa = Pa ÷ 1,000
Divide by 1000
Planning notes, formulas, and examples
About the kPa Pressure Converter
The kilopascal is the practical everyday unit in the SI pressure system. It is large enough to keep common pressures readable while still staying close to the base Pascal definition, which is why it appears in weather data, engineering documents, HVAC work, and many international equipment specs. Because the unit is decimal-friendly, it is also easy to scale up to MPa for strength values or down to Pa when you need a base-unit calculation.
This page converts kPa to and from the other pressure units people commonly encounter, including psi, bar, atm, mmHg, and Pa. That makes it useful when a value starts in a metric pressure system but has to be compared with US gauges, laboratory references, or medical-style units. It also helps when weather reports, tire labels, and design documents all describe the same pressure in different shorthand.
Use it when kPa is the center of the problem and you want the nearby pressure units in one place. The presets and reference table make it easier to cross-check whether a reading is ordinary atmospheric pressure, a low HVAC value, or a much higher engineering load.
When This Page Helps
kPa sits at the intersection of engineering, weather, and general metric pressure reporting. This page helps translate that SI-friendly number into the other units people are likely to see on gauges, specs, and reference tables, so you can compare values without mentally jumping between systems. That is especially useful when the same pressure appears in a weather app, a design report, and a service manual with different unit conventions.
How to Use the Inputs
- Select the input unit from the dropdown menu.
- Enter your pressure value in the input field.
- View all converted values in the output cards below.
- Use the preset buttons for common values.
- Review the conversion table for a range of values.
- Expand the reference section to see real-world pressure examples.
- Check the quick formulas for the mathematical relationships.
Formula used
kPa to Pa: Pa = kPa × 1,000
kPa to bar: bar = kPa ÷ 100
kPa to atm: atm = kPa ÷ 101.325
kPa to psi: psi = kPa × 0.145038
kPa to mmHg: mmHg = kPa × 7.50062Example Calculation
Result: 14.696 psi / 1 atm
101.325 kPa is exactly 1 standard atmosphere, which equals 14.696 psi, 1.01325 bar, and 760 mmHg.
Tips & Best Practices
- 1 atm = 101.325 kPa — memorize this key conversion factor.
- Canadian weather forecasts report pressure in kPa (normal range: 97-104 kPa).
- Blood pressure of 120/80 mmHg equals about 16/10.7 kPa.
- For a quick kPa-to-psi estimate: divide kPa by 7 (within 2% accuracy).
- Tire pressure: 220 kPa ≈ 32 psi (standard passenger car).
- Material strength (tensile, yield) is usually reported in MPa = 1,000 kPa.
kPa in Everyday Life
kPa appears on tire gauges (especially outside the US), weather reports, blood pressure monitors (in some countries), and altitude instruments. Normal atmospheric pressure fluctuates between about 97 and 104 kPa depending on weather and altitude.
Engineering Applications
kPa is the standard unit for soil bearing capacity, wind loads on structures, water pressure in plumbing, and HVAC system specifications. Most international building codes specify loads in kPa or kN/m².
Relationship to Other SI Units
1 Pa = 1 N/m² (newton per square meter). 1 kPa = 1,000 Pa. 1 MPa = 1,000 kPa. 1 bar = 100 kPa. These clean decimal relationships make the SI pressure system easy to work with.
Sources & Methodology
Last updated:
Frequently Asked Questions
100 kPa = 14.5038 psi. That is very close to 1 atmosphere, since 1 atm = 101.325 kPa, so the two values are often used as quick mental reference points.
kPa (kilopascals) = 1,000 Pa (Pascals). The kPa is more practical for everyday pressures since most values are in the 1-1000 range, while Pa is more convenient when you need the base SI unit.
Divide by 100. For example, 250 kPa ÷ 100 = 2.5 bar, which is why the two units are easy to compare at a glance.
Yes, 1 kPa = 1 kN/m² (kilonewton per square meter). Both represent the same physical quantity, just expressed with different unit names.
101.325 kPa is standard atmospheric pressure at sea level, the reference point for normal atmospheric conditions. It equals 1 atm, 14.696 psi, 1.01325 bar, and 760 mmHg.
Multiply by 7.50062. For example, 13.3 kPa × 7.50062 = 99.76 mmHg, which is why medical pressure values can be translated into kPa without much rounding drift.
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