Unit Conversion Calculators

PSI to Bar/ATM Converter

Convert a pressure in pounds per square inch (PSI) to bar and standard atmospheres (atm).

Bar —

Atmospheres —

Kilopascals —

About the PSI to Bar/ATM Converter

PSI (pounds per square inch) is a common pressure unit in the US, used for tire pressure and hydraulics. Bar and atmospheres (atm) are metric and scientific pressure units used elsewhere in the world.

Formula: Pa = PSI × 6,894.76 · Bar = Pa ÷ 100,000 · ATM = Pa ÷ 101,325

Commonly used for tire inflation, scuba diving, weather and industrial pressure readings.