Symbols, abbreviations, or full names for units of length,Īrea, mass, pressure, and other types. You can find metric conversion tables for SI units, as wellĪs English units, currency, and other data. The unit is named after Evangelista Torricelli, Italian physicist and mathematician, for his discovery of the principle of the barometer in 1643.Ĭonversion calculator for all types of measurement units. 1 atm (standard atmosphere) 1.033227453 at (technical atmosphere) 760 torr 10332.276034645 mmH2O (mm of water) 760 mmHg (mm of mercury) 29.921252402 inHg (inches of mercury) 14.695964321 psi (pounds per sq. It is the atmospheric pressure that supports a column of mercury 1 millimetre high. Convert to millimetres of mercury (mmHg) Standard atmospheres. It is approximately equal to Earth's atmospheric pressure at sea level. 1 Physical atmospheres 10.3326 Metres of water: 10 Physical atmospheres 103.33 Metres of water: 2500 Physical atmospheres 25831.39 Metres of water: 2 Physical atmospheres 20.6651 Metres of water: 20 Physical atmospheres 206.65 Metres of water: 5000 Physical atmospheres 51662.78 Metres of water: 3 Physical atmospheres 30. It is sometimes used as a reference pressure or standard pressure. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar).
MmHg to atm, or enter any two units below: Enter two units to convert From: 0.026315789 atm (standard atmosphere) 0.027190196 at (technical atmosphere) 20 torr 271.902000912 mmH2O (mm of water) 20 mmHg (mm of mercury) 0.787401379 inHg (inches of mercury) 0.386735903 psi (pounds per sq. You can do the reverse unit conversion from 1 Millimeter Of Mercury to common pressure units 1 mmHg 133.322 pascals (Pa) 1 mmHg 0.0013157858376511 atmosphere atm standard (atm) 1 mmHg 1 millimeter of mercury (mmHg) 1 mmHg 0.00133322 bars (bar) 1 mmHg 0.99999723662275 torrs (Torr) 1 mmHg 1.9336721269578E-5 ksi (ksi) 1 mmHg 0.
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