Convert millimeter of mercury to kilopascal
1 mmHg = 0.1333223874 kPa
sig figs
1 mmHg = 0.133 kPa
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 0.1333223874 to go from millimeter of mercury to kilopascal, 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? kilopascal to millimeter of mercury: 1 kPa = 7.500615758 mmHg.
millimeter of mercury to kilopascal: common values
| 1 mmHg | 0.13332239 kPa |
| 2 mmHg | 0.26664477 kPa |
| 3 mmHg | 0.39996716 kPa |
| 5 mmHg | 0.66661194 kPa |
| 10 mmHg | 1.3332239 kPa |
| 15 mmHg | 1.9998358 kPa |
| 20 mmHg | 2.6664477 kPa |
| 25 mmHg | 3.3330597 kPa |
| 50 mmHg | 6.6661194 kPa |
| 75 mmHg | 9.9991791 kPa |
| 100 mmHg | 13.332239 kPa |
| 250 mmHg | 33.330597 kPa |
| 500 mmHg | 66.661194 kPa |
| 1000 mmHg | 133.32239 kPa |