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Pressure Converter

Convert bar to psi, or mmHg to pascals, when a tyre, a boiler, and a weather chart all mean pressure.

 

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About this calculator

Use this for tyres, hydraulics, and lab gauges that mix bar, psi, atm, and torr. Type the reading, pick the unit on the gauge, then pick the unit you want.

Everything is converted through the pascal. torr and mmHg are treated as equal (101325/760). Gauge pressure (PSIG) is relative to atmosphere: subtract 1 atm if you need absolute. inH₂O is conventional inches of water.

Value: The pressure reading you have.

From: The unit on the gauge or the chart.

To: The unit you want back.

Result: The same pressure in the To unit.