Millimeters of Mercury to Torr Converter

To convert a measurement in millimeters of mercury to torr, multiply the value by 1. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 mmHg to torr: 5 × 1 = 5.000001 Torr.

A millimeter of mercury (mmHg) is a unit of pressure equal to the pressure exerted by a one-millimeter-high column of mercury, about 133.32 pascals. Derived from early mercury barometers, the mmHg is nearly identical to the torr. It remains the standard unit for blood pressure and other physiological measurements in medicine worldwide.

Common uses of millimeters of mercury include: Blood pressure readings (systolic/diastolic); Intraocular and intracranial pressure; Barometric pressure in medicine; Vacuum and gas-pressure measurement.

A torr is a unit of pressure defined as 1/760 of a standard atmosphere, approximately equal to one millimeter of mercury (about 133.32 pascals). Named after Evangelista Torricelli, inventor of the barometer, the torr is used mainly in vacuum technology and laboratory work where low pressures are measured against a mercury column.

Common uses of torr include: Vacuum system measurements; Laboratory and analytical instruments; Semiconductor process chambers; Physiology and respiratory gas pressures.

Here are some common values converted:

1 mmHg = 1 Torr 5 mmHg = 5.000001 Torr 10 mmHg = 10.000001 Torr 50 mmHg = 50.000007 Torr 100 mmHg = 100.000014 Torr