Convert millimeter of mercury to megapascal
1 mmHg = 0.0001333223874 MPa
sig figs
1 mmHg = 0.000133 MPa
1 mmHg in every pressure unit
| microbar | 1,330 μbar |
| barye | 1,330 Ba |
| millitorr | 1,000 mTorr |
| pascal | 133 Pa |
| millimeter of water column | 13.6 mmH₂O |
| pound per square foot | 2.78 lb/ft² |
| centimeter of water column | 1.36 cmH₂O |
| hectopascal | 1.33 hPa |
| millibar | 1.33 mbar |
| torr | 1 Torr |
| millimeter of mercury | 1 mmHg |
| inch of water column | 0.535 in w.g. |
| kilopascal | 0.133 kPa |
| foot of water column | 0.0446 ft H₂O |
| inch of mercury | 0.0394 inHg |
| pound per square inch | 0.0193 psi |
| meter of water column | 0.0136 m H₂O |
| decibar | 0.0133 dbar |
| kilogram-force per square centimeter | 0.00136 kgf/cm² |
| bar | 0.00133 bar |
| atmosphere | 0.00132 atm |
| megapascal | 0.000133 MPa |
| kip per square inch | 0.0000193 ksi |
| gigapascal | 1.33e-07 GPa |
| million pounds per square inch | 1.93e-08 Mpsi |
Worth knowing
millimeter of mercury: The torr and the millimetre of mercury are not identical. The torr is defined as exactly 1/760 of a standard atmosphere, or 133.3223684... Pa, while mmHg is 133.322387415 Pa. They differ by about one part in seven million, which is irrelevant for blood pressure and can matter in precision vacuum metrology. Full definition →
How the conversion works
Multiply by 0.0001333223874 to go from millimeter of mercury to megapascal, or divide by it to go back. Every conversion on this site routes through the SI value (Pa) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? megapascal to millimeter of mercury: 1 MPa = 7,500.615758 mmHg.
millimeter of mercury to megapascal: common values
| 1 mmHg | 0.00013332239 MPa |
| 2 mmHg | 0.00026664477 MPa |
| 3 mmHg | 0.00039996716 MPa |
| 5 mmHg | 0.00066661194 MPa |
| 10 mmHg | 0.0013332239 MPa |
| 15 mmHg | 0.0019998358 MPa |
| 20 mmHg | 0.0026664477 MPa |
| 25 mmHg | 0.0033330597 MPa |
| 50 mmHg | 0.0066661194 MPa |
| 75 mmHg | 0.0099991791 MPa |
| 100 mmHg | 0.013332239 MPa |
| 250 mmHg | 0.033330597 MPa |
| 500 mmHg | 0.066661194 MPa |
| 1000 mmHg | 0.13332239 MPa |