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Pressure Converter

Convert pressure units: pascal, kilopascal, bar, PSI, atmosphere, mmHg, inHg and more. Free and precise.

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Pressure Converter — bar, psi, atm, Pascal

Convert pressure units: pascal, kilopascal, bar, PSI, atmosphere, mmHg, inHg and more. Free and precise.

FAQ

How many psi in a bar?: 1 bar = 14.5038 psi.
What is 1 atmosphere in bar?: 1 atm = 1.01325 bar.
What is PSI?: PSI = pounds per square inch. Common for tire pressure in the US.

Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters