mmHg

What is a mmHg?

Definition

mmHg (millimeters of mercury) is a unit of pressure equal to the pressure exerted by a 1mm column of mercury.

Popular mmHg Conversions

Most common conversions from mmHg

1 mmHg = 133.322 Pa mmHg to Pascals 1 mmHg = 0.133322 kPa mmHg to Kilopascals 1 mmHg = 0.000133322 MPa mmHg to Megapascals 1 mmHg = 0.00133322 bar mmHg to Bars 1 mmHg = 1.3332 mbar mmHg to Millibars 1 mmHg = 0.019337 psi mmHg to PSI

History

mmHg originates from mercury barometers and sphygmomanometers. Despite metrication, it remains standard for blood pressure.

Common Uses

Blood pressure readings
Barometric pressure
Vacuum measurements
Medical gas pressures

Fun Facts

💡

Normal blood pressure is about 120/80 mmHg

💡

Standard atmospheric pressure is 760 mmHg

💡

Mercury barometers date back to 1643

All mmHg Conversions

mmHg to Pascals mmHg → Pa mmHg to Kilopascals mmHg → kPa mmHg to Megapascals mmHg → MPa mmHg to Bars mmHg → bar mmHg to Millibars mmHg → mbar mmHg to PSI mmHg → psi mmHg to Atmospheres mmHg → atm mmHg to Torr mmHg → Torr