Millimeters of mercury to Torr converter

To convert millimeters of mercury to torr, enter the value in the first field. The result in torr is calculated automatically using the exact conversion factor.

1 mmHg ≈ 1.00000014247 Torr
1 Torr ≈ 0.999999857534 mmHg

Formula: Torr ≈ mmHg × 1.00000014247
mmHg ≈ Torr × 0.999999857534

Definitions: 1 mmHg = 133.322387415 Pa; 1 Torr = 20265/152 Pa

The millimeter of mercury (mmHg) is the pressure at the base of a one-millimeter column of mercury. It is the unit of blood pressure in medicine, for example 120/80 mmHg, and is also used for some barometric and vacuum readings.

The torr is 1/760 of a standard atmosphere, very close to the pressure of one millimeter of mercury. It is used in vacuum technology and physics, where pressures below atmospheric are given in torr or millitorr.

See the conversion table with commonly used values, handy for quick reference or study.