# Millimeter of mercury conversions

The millimeter of mercury conversion selector selects the pressure/stress measurement unit to convert to starting from millimeters of mercury (mmHg). To make a conversion starting from a unit of pressure other than millimeter of mercury, simply click on the "Reset" button.

## About millimeter of mercury

The **millimeter of mercury** is a unit of pressure equal to 133.3224 pascals (1 mmHg = 133.3224 Pa), the SI derived unit of pressure.

The millimeter of mercury (mmHg) is also equal to 1.333224 hectopascals (hPa), or 0.1333224 kilopascals (kPa), or about 0.00131578947 atmospheres (atm), or 0.00133322368 bars (bar), or 0.53524 inches of water at 4 °C (inH_{2}O), or 0.0193368 pounds per square inch (psi), or 2.78449556 pounds per square foot (psf) or 1.0 torr (Torr).

The millimeters of mercury is the pressure applied by a column of mercury one millimeter high at 0 °C in a gravitational field.

The millimeter of mercury is used in medicine for blood pressure measurement.

Symbol: mmHg

Plural: millimeters of mercury

Also known as: millimetre of mercury (plural: millimetres of mercury, Int. spelling)