Pressure Converter (psi, bar, kPa, atm)

Enter a pressure and pick units — the conversion updates instantly.

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ValueFromTo

Show all units

How to use

Type a pressure in “Value” and choose the units to convert from and to. The page opens on bar → psi.
The arrow button in the middle reverses the direction, for example psi → bar.
“Show all units” lists the same pressure in kPa, atm, mmHg and every other unit at once.
The page address keeps your value and units, so you can share the link as is.

How many psi is 1 bar?

One bar is about 14.504 psi, so a tire filled to 2.4 bar is close to 35 psi.

What is standard atmospheric pressure?

1 atm is 101,325 Pa — that is 1013.25 hPa, 760 mmHg or about 29.92 inHg.

Are hectopascals and millibars the same?

Yes. One hPa equals one mbar, which is why weather maps use the two interchangeably.