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Pressure Converter

Convert between pascal, bar, psi, atmosphere, mmHg, torr, and other pressure units instantly.

Pressure Converter — Pressure is force per unit area. There are many units in common use: pascals (SI), bar (meteorology and diving), psi (US engineering), atmospheres (chemistry and physics), and mmHg or torr (medicine and vacuum science).

Conversions run locally in your browser. No values are sent anywhere.

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What is pressure converter?

Pressure is force per unit area. There are many units in common use: pascals (SI), bar (meteorology and diving), psi (US engineering), atmospheres (chemistry and physics), and mmHg or torr (medicine and vacuum science).

This converter uses the pascal as the base and supports conversion between all of them. The math is done in your browser.

How to use it

  1. Enter a value

    Type the pressure in any of the supported units. The default is 1 atm.

  2. Pick the from / to units

    The "from" dropdown lists the source unit; the "to" dropdown lists the target. The result updates as you type.

  3. Use the swap button

    Click the swap arrow to flip the from and to units. Useful for back-and-forth conversions.

Examples

Tire pressure: 32 psi to bar

A typical car tire at 32 psi (US spec) is about 2.21 bar (European spec).

32 psi

Result: ≈ 2.206 bar

Frequently asked questions

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Last reviewed: 2026-08-21