Convert millimeter of mercury to inch of mercury
1 mmHg = 0.03937007874 inHg
1 mmHg = 0.0394 inHg
1 mmHg in every pressure unit
| pascal | 133 Pa |
| kilopascal | 0.133 kPa |
| megapascal | 0.000133 MPa |
| bar | 0.00133 bar |
| atmosphere | 0.00132 atm |
| millimeter of mercury | 1 mmHg |
| pound per square inch | 0.0193 psi |
| foot of water column | 0.0446 ft H₂O |
| gigapascal | 1.33e-07 GPa |
| kip per square inch | 0.0000193 ksi |
| inch of mercury | 0.0394 inHg |
| inch of water column | 0.535 in w.g. |
How the conversion works
Multiply by 0.03937007874 to go from millimeter of mercury to inch of mercury, 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? inch of mercury to millimeter of mercury — 1 inHg = 25.4 mmHg.
millimeter of mercury to inch of mercury — common values
| 1 mmHg | 0.039370079 inHg |
| 2 mmHg | 0.078740157 inHg |
| 3 mmHg | 0.11811024 inHg |
| 5 mmHg | 0.19685039 inHg |
| 10 mmHg | 0.39370079 inHg |
| 15 mmHg | 0.59055118 inHg |
| 20 mmHg | 0.78740157 inHg |
| 25 mmHg | 0.98425197 inHg |
| 50 mmHg | 1.9685039 inHg |
| 75 mmHg | 2.9527559 inHg |
| 100 mmHg | 3.9370079 inHg |
| 250 mmHg | 9.8425197 inHg |
| 500 mmHg | 19.685039 inHg |
| 1000 mmHg | 39.370079 inHg |
Other pressure conversions
Pa → inHgkPa → inHgMPa → inHgbar → inHgatm → inHgpsi → inHgmmHg → PammHg → kPa