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Pressure converter

Convert pressures between psi, bar, kPa, atm and mmHg. 1 bar is 100 kPa or about 14.504 psi, and 1 atm is 101.325 kPa.

Result

0.0689476bar

1 psi = 0.0689476 bar

Same amount, two scales

1 psi

0.06895 bar

Both bars show the same amount: 1 psi on top, 0.06895 bar below.

Quick challenge

Streak 0Best 0

Guess the conversion before you calculate it. How many can you get in a row?

How it works

Pressures are converted through the pascal (1 N/m²). Tire pressures use psi, bar or kPa; weather maps use hectopascals (equal to millibars); blood pressure uses millimeters of mercury.

All units compared

All units compared
UnitSymbolValue in pascals
pascalPa1 Pa
hectopascalhPa100 Pa
kilopascalkPa1,000 Pa
megapascalMPa1,000,000 Pa
millibarmbar100 Pa
barbar100,000 Pa
atmosphereatm101,325 Pa
torrTorr133.3223684 Pa
millimeter of mercurymmHg133.3223874 Pa
inch of mercuryinHg3,386.389 Pa
pound per square inchpsi6,894.757293 Pa

Frequently asked questions

What is normal car tire pressure in bar?

Most passenger cars use 30–35 psi, which is about 2.1–2.4 bar. Always follow the value on your door sticker.

Is a millibar the same as a hectopascal?

Yes. 1 mbar = 1 hPa = 100 Pa, which is why weather reports use either.

How many bars are in 1 pound per square inch?

1 pound per square inch = 0.0689476 bars. The other way round, 1 bar = 14.5038 pounds per square inch.

How many pounds per square inch are in 1 bar?

1 bar = 14.5038 pounds per square inch. The other way round, 1 pound per square inch = 0.0689476 bars.

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