Pressure Converter
Convert between Bar, PSI, atm, kPa, mmHg, and Torr instantly. See all pressure unit conversions at once. Essential for tire pressure, weather data, and engineering calculations. Free, no registration.
Bar is the metric standard for tire pressure. PSI is used in the US/UK. atm is the standard atmospheric pressure at sea level (1 atm = 101.325 kPa).
The pressure converter handles six common pressure units: Bar, PSI, atm (atmosphere), kPa (kilopascal), mmHg (millimeters of mercury), and Torr. Enter a value in any unit and see all five other conversions simultaneously — no need to run separate calculations for each unit.
Understanding when to use each unit: Bar is the metric standard used for tire pressure in most of the world. PSI (pounds per square inch) is the imperial standard used in the US and UK. atm represents the average atmospheric pressure at sea level (1 atm = 101.325 kPa). mmHg and Torr are used in medical settings for blood pressure and in meteorology. kPa is the SI standard used in scientific and engineering contexts.
Common reference values: standard atmosphere = 1 atm = 1.01325 Bar = 14.696 PSI = 760 mmHg. Typical car tire pressure: 2.0-2.5 Bar (29-36 PSI). Use this alongside our Unit Converter and Temperature Converter.
Frequently Asked Questions
You Might Also Like