1 torr equals about
133,32 Pa
The torr is a pressure unit named after Evangelista Torricelli, the inventor of the mercury barometer, and is numerically almost identical to the millimeter of mercury (mmHg), with a negligible difference due to slightly different historical definitions. It is widely used in vacuum physics and laboratory settings.
To convert a measurement from torr to Pascal, simply multiply the value by 133.322:
To convert from Pascal to torr, perform the inverse operation, dividing by 133.322:
The torr is the preferred unit in vacuum physics, where very low pressures (partial or near-total vacuum) are described in laboratory equipment, industrial vacuum deposition processes, or refrigeration systems, where the Pascal would be inconvenient for expressing such small numbers without scientific notation.