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Pressure Converter

Convert pressure units instantly

Convert between pascal, bar, psi, atm, torr, hPa, kPa and MPa - instantly as you type

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About the pressure converter

The pressure converter translates between the most common units of pressure, from pascals up to megapascals, atmospheres, and pounds per square inch. Type any amount, choose the unit you are converting from and the unit you want, and the result updates live as you type. Use the swap button to reverse the direction in a single click.

All conversions run through the pascal, the SI unit of pressure. Standard factors are used: 1 atm = 101325 Pa, 1 bar = 100000 Pa, 1 psi = 6894.76 Pa, and 1 torr (mmHg) = 133.322 Pa.

Supported units

  • Pa, hPa, kPa, MPa
  • bar, mbar, atm, psi, torr (mmHg)

How to use the pressure converter

  1. Enter a value

    Type the pressure you want to convert.

  2. Pick the from and to units

    Select the unit you are converting from and the unit you want to convert to.

  3. Swap if needed

    Use the swap button to reverse the conversion direction instantly.

Frequently asked questions

Are the conversions accurate?
Yes. All units are converted through the pascal using standard, internationally recognized factors such as 1 atm = 101325 Pa and 1 psi = 6894.76 Pa.
What is the difference between bar and psi?
The bar is a metric unit (1 bar = 100000 Pa) commonly used in Europe for tire pressure, while psi (pounds per square inch) is the imperial unit common in the United States. 1 bar is about 14.5 psi.
What is torr?
The torr is defined as 1/760 of a standard atmosphere and is equal to one millimeter of mercury (mmHg), traditionally used in vacuum and blood-pressure measurement.
Does it work offline?
The converter runs entirely in your browser, so once the page is loaded it works without an internet connection.
Is the pressure converter free?
Yes, it is completely free and requires no account or sign-up.

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