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Pressure Converter

Pressure converter for weather, tires, and engineering — psi, bar, and atmospheres.

All Pressure Units

UnitSymbolDefinition
PascalPaThe SI derived unit of pressure, equal to one newton per square meter.
KilopascalkPaEqual to 1,000 pascals.
BarbarApproximately equal to atmospheric pressure at sea level.
Pounds per Square InchpsiForce in pounds applied over one square inch.
AtmosphereatmDefined as standard atmospheric pressure at sea level.
TorrTorrApproximately equal to one millimeter of mercury.
Millimeter of MercurymmHgThe pressure exerted by a 1-millimeter column of mercury.

Common Pressure Conversions