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Torr (Torr)

The torr is a unit of pressure, used for vacuum technology, laboratory work, and medical blood pressure readings. Its symbol is Torr.

Torr
-psi

1 torr equals

Pounds per Square Inch0.0193368 psi
Bar0.00133322 bar
Kilopascals0.133322 kPa

About the torr

The torr honors Evangelista Torricelli, inventor of the mercury barometer in 1643. It equals the pressure of one millimeter of mercury.

In everyday use the torr appears in vacuum technology, laboratory work, and medical blood pressure readings. As a point of reference: healthy blood pressure is around 120/80 torr (mmHg).

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