Pressure converter (psi, bar, atm, kPa)
Convert pressure units: pascal, kilopascal, bar, psi, atmosphere, mmHg, kgf/cm², meter of water column and inch of mercury, all at once.
How to usePressure unit conversion
1 atm = 101.325 Pa = 760 mmHg = 1,01325 bar ≈ 14,696 psi.
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Pressure converter (psi, bar, atm, kPa): what it is for
Type the pressure in any unit and see the value in pascal, hectopascal, kilopascal, megapascal, bar, millibar, atmosphere, mmHg, psi, kgf/cm², meter of water column and inch of mercury. Useful for tire pressure, compressors, water pumps, weather forecasts and physics exercises.
The conversion is done in your browser, with the official conversion factors for each unit.
How to use
- Type the value.
- Choose the source unit.
- See every conversion.
When to use it
- Converting tire pressure from psi to bar.
- Sizing pumps in meters of water column.
- Converting barometric pressure from hPa to inHg.
Frequently asked questions
How much is 32 psi in bar?
32 psi is about 2.21 bar or 220.6 kPa. It is a common car tire pressure.
What is the difference between bar and atm?
They are almost the same: 1 atm is 1.01325 bar. The bar is exactly 100,000 Pa and the atmosphere is the average pressure at sea level.
What is a meter of water column?
It is the pressure exerted by a 1-meter column of water, used in plumbing and pumps: 1 mH₂O ≈ 9.8 kPa ≈ 0.1 kgf/cm² ≈ 1.42 psi.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.