# Millimeter of mercury conversions

pressure conversions » millimeter of mercury conversionsThe millimeter of mercury conversion selector on this page 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.

## What is millimeter of mercury?

The **millimetre of mercury** (or **millimeter of mercury**) is a unit of pressure equal to 133.3224 pascals (1 mmHg = 133.3224 Pa), the SI derived unit of pressure. It 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 (inH2O), 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.

*Notes:*

(i) The SI is an abbreviation for the International System of Units

(ii) The density of mercury at 0 °C is approximately 13.5951 g/cm3

(iii) According to the General Conference on Weight and Measures, the standard gravity is 9.80665 m/s² (or 32.1740 ft/s²)

*Symbol:*

mmHg

*Plural:*

millimeters of mercury

*Also known as:*

millimeter of mercury (plural: millimeters of mercury, US spelling)

## Millimeter of mercury conversions: direct access

A compehensive list with conversions from millimeters of mercury to other (metric, imperial, or customary) pressure and stress measurement units is given below.

- millimeter of mercury to atmosphere (standard) (mmHg to atm)
- millimeter of mercury to atmosphere (technical) (mmHg to at)
- millimeter of mercury to bar (mmHg to bar)
- millimeter of mercury to barye (mmHg to Ba)
- millimeter of mercury to centibar (mmHg to cbar)
- millimeter of mercury to centimeter of mercury (mmHg to cmHg)
- millimeter of mercury to centimeter of water (mmHg to cmH2O)
- millimeter of mercury to decibar (mmHg to dbar)
- millimeter of mercury to dyne per square centimeter (mmHg to dyn/cm²)
- millimeter of mercury to gigabar (mmHg to Gbar)
- millimeter of mercury to gigapascal (mmHg to GPa)
- millimeter of mercury to hectopascal (mmHg to hPa)
- millimeter of mercury to inch of mercury (mmHg to inHg)
- millimeter of mercury to inch of water (mmHg to inH2O)
- millimeter of mercury to kilobar (mmHg to kbar)
- millimeter of mercury to kilogram-force per square centimeter (mmHg to kgf/cm²)
- millimeter of mercury to kilogram-force per square millimeter (mmHg to kgf/mm²)
- millimeter of mercury to kilopascal (mmHg to kPa)
- millimeter of mercury to kip per square inch (mmHg to ksi)
- millimeter of mercury to megabar (mmHg to Mbar)
- millimeter of mercury to megapascal (mmHg to MPa)
- millimeter of mercury to millibar (mmHg to mbar)
- millimeter of mercury to millimeter of water (mmHg to mmH2O)
- millimeter of mercury to millipascal (mmHg to mPa)
- millimeter of mercury to newton per square meter (mmHg to N/m²)
- millimeter of mercury to newton per square millimeter (mmHg to N/mm²)
- millimeter of mercury to pascal (mmHg to Pa)
- millimeter of mercury to pieze (mmHg to pz)
- millimeter of mercury to pound per square foot (mmHg to psf)
- millimeter of mercury to pound per square inch (mmHg to psi)
- millimeter of mercury to torr (mmHg to Torr)