Pressure Converter
Convert between 9 pressure units: pascal, bar, psi, atmospheres, torr and mercury columns, with live results and the exact formula shown.
How pressure conversion works
All units convert through pascals, the SI unit (one newton per square meter). Each unit has one fixed factor (1 psi = 6,894.757 Pa), so any pair converts in a single step.
Where each unit is used
PSI and bar dominate tire pressure (car tires run about 32 psi / 2.2 bar). Weather reports use hPa or inHg, blood pressure uses mmHg, and vacuum or lab work uses torr.