Pressure Converter

Convert pressure units quickly and accurately with this free online tool.

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Converted Value

Pressure Converter

The Pressure Converter makes it easy to convert between commonly used pressure units. It can convert Pascals, kilopascals, megapascals, bar, psi, atmospheres, mmHg, Torr and other pressure measurements.

Common Pressure Units

Pascal (Pa): The SI unit of pressure.

Kilopascal (kPa): Equal to 1,000 Pascals and commonly used in engineering, weather and pressure measurements.

Bar: A commonly used metric pressure unit.

PSI: Pounds per square inch, widely used for tire, hydraulic and mechanical pressure.

Atmosphere (atm): A standard reference unit based on average atmospheric pressure at sea level.

mmHg: Millimeters of mercury, commonly used for measuring blood pressure and other pressure values.

Pressure Conversion Formula

All conversions are performed by first converting the entered value to Pascals (Pa), then converting from Pascals to the selected target unit.

Examples

1 bar = 100,000 Pa

1 atm = 101,325 Pa

1 psi ≈ 6,894.757 Pa

1 kPa = 1,000 Pa

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Frequently Asked Questions

What is the SI unit of pressure?

The Pascal (Pa) is the SI unit of pressure.

How many Pascals are in one bar?

One bar is equal to 100,000 Pascals.

How many Pascals are in one atmosphere?

One standard atmosphere is equal to 101,325 Pascals.

Can I convert PSI to kPa?

Yes. Select PSI as the source unit and kPa as the target unit, enter your value and click Convert.