Millimeters of Mercury to Bars Converter

To convert a measurement in millimeters of mercury to bars, multiply the value by 0.001333223874. The conversion factor comes from the relationship between both units and the pascal.

For example, to convert 5 mmHg to bars: 5 × 0.001333223874 = 0.006666119371 bar.

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 bar is a metric unit of pressure equal to exactly 100,000 pascals, roughly equal to atmospheric pressure at sea level. Introduced by Norwegian meteorologist Vilhelm Bjerknes, the bar takes its name from the Greek 'baros' (weight). Although not an SI unit, it remains popular in industry, diving, and weather because it is close to one atmosphere.

Common uses of bars include: Scuba diving depth and tank pressure; Industrial hydraulics and pneumatics; European tire and automotive pressure; Weather systems (via millibars).

Here are some common values converted:

1 mmHg = 0.001333223874 bar 5 mmHg = 0.006666119371 bar 10 mmHg = 0.013332238742 bar 50 mmHg = 0.066661193708 bar 100 mmHg = 0.133322387415 bar