Pressure Converter
Instantly convert pressure measurements across metric, imperial, and specialized engineering units.
All Conversions
About Pressure Units
Pressure is defined as the physical force exerted on an object per unit area. Various disciplines such as meteorology, mechanics, and fluid dynamics use different pressure units.
Pascal (Pa) & Bar
The Pascal (Pa) is the SI derived unit of pressure, equal to one newton per square meter. A bar is exactly equal to 100,000 Pa, roughly atmospheric pressure at sea level. Hectopascals (hPa) are widely used in meteorology to measure atmospheric pressure.
Psi, Ksi & Torr
Pounds per square inch (psi) is prevalent in the US for tire pressure and industrial applications, with ksi (1000 psi) used in materials science. Torr is used in vacuum engineering and was originally based on millimeters of mercury (mmHg).