Pressure Converter
Convert pressure between units like psi, bar and kPa instantly with this free pressure unit converter in your browser.
Convert pressure
Result
0.001
1 Pascals (Pa) = 0.001 Kilopascals (kPa)
All units
- Pascals (Pa)
- 1
- Kilopascals (kPa)
- 0.001
- Hectopascals (hPa)
- 0.01
- Bar
- 1.0000e-5
- Millibar (mbar)
- 0.01
- Pounds per sq inch (psi)
- 0.000145
- Atmospheres (atm)
- 9.8692e-6
Before you rely on this: First-pass guide only. Verify safety-critical or regulated work against the relevant standards, your project requirements and a qualified professional.
How to use this calculator
- Enter the amount you want to convert.
- Choose the unit you have (From) and the unit you want (To).
- Read the result instantly — every other unit is listed too.
How it works
Converts between kilopascals, psi (×0.145), bar (100 kPa) and atmospheres (101.325 kPa).
Worked example
100 kPa. = 1 bar ≈ 14.5 psi.
Common mistakes
- Mixing absolute and gauge pressure.
- Confusing bar with psi — 1 bar ≈ 14.5 psi.
Frequently asked questions
How many psi in a bar?
About 14.5 psi in one bar.
What is 1 atmosphere?
About 101.3 kPa, 1.013 bar, or 14.7 psi.
What's a typical car tyre pressure?
Often around 220–250 kPa (about 32–36 psi). Convert kPa ↔ psi here to match your placard or gauge.
How accurate are the conversions?
They use standard conversion factors at full device precision, so they're reliable for everyday and professional use.
Does it work offline and stay private?
Yes — the conversion runs entirely in your browser, with no sign-up and nothing sent to a server.
Related tools
Explore more in Units, Measurement & Converters.
Cite this tool
Zerdly. (2026). Pressure Converter. Retrieved from https://www.zerdly.com/tools/pressure-converter/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.