The torr (symbol: Torr) is a unit of pressure based on an absolute scale, defined as exactly ⁠ 1 760 ⁠ of a standard atmosphere (101325 Pa). Thus one torr is exactly ⁠ 101325 760 ⁠ pascals (≈ 133.32 Pa).

Jul 2, 2024 · The Torr is a unit of pressure named after Evangelista Torricelli, the inventor of the barometer. It is defined as exactly 1/760 of a standard atmosphere, equivalent to the pressure …

Jun 9, 2025 · A torr is a unit of pressure defined to be exactly 1/760 of one standard atmosphere. One torr is approximately 133.32 Pa. Prior to the redefinition of the unit, one torr was equal to one mm Hg.

What is a torr? A torr is a unit of pressure measurement named after the Italian physicist Evangelista Torricelli, a pioneer in the study of atmospheric pressure. One torr is defined as 1/760 of an …

Nov 2, 2025 · The torr is a unit of pressure measurement used by scientists and engineers to quantify the force exerted by gases, particularly in environments far removed from normal atmospheric …

A torr is the non-SI unit of pressure on the absolute scale. The unit torr was named after the Italian Physicist and Mathematician Evangelista Torricelli, who discovered the principle of the barometer in …

Sep 17, 2023 · One of the units used to measure pressure is torr. Torr is commonly used in science and engineering to measure low pressures. It’s named after Evangelista Torricelli, an Italian physicist …

What is a Torr? The torr (symbol: Torr) is a non-SI unit of pressure defined as 1/760 of an atmosphere. It was named after Evangelista Torricelli, an Italian physicist and mathematician who discovered the …

Dec 4, 2025 · A torr is a small unit that tells you how strongly gas or liquid pushes on a surface. It is about one seven hundred sixtieth of normal air pressure at sea level.

In honour of Torricelli, the torr was defined as a unit of pressure equal to one millimeter of mercury at 0 °C.