Convert millimeter of mercury to inch of mercury
1 mmHg = 0.03937007874 inHg
1 mmHg = 0.03937 inHg
1 mmHg in every pressure unit
| microbar | 1,333.2 μbar |
| barye | 1,333.2 Ba |
| millitorr | 1,000 mTorr |
| pascal | 133.32 Pa |
| millimeter of water column | 13.595 mmH₂O |
| pound per square foot | 2.7845 lb/ft² |
| centimeter of water column | 1.3595 cmH₂O |
| hectopascal | 1.3332 hPa |
| millibar | 1.3332 mbar |
| torr | 1 Torr |
| millimeter of mercury | 1 mmHg |
| inch of water column | 0.53524 in w.g. |
| kilopascal | 0.13332 kPa |
| foot of water column | 0.044603 ft H₂O |
| inch of mercury | 0.03937 inHg |
| pound per square inch | 0.019337 psi |
| meter of water column | 0.013595 m H₂O |
| decibar | 0.013332 dbar |
| kilogram-force per square centimeter | 0.0013595 kgf/cm² |
| bar | 0.0013332 bar |
| atmosphere | 0.0013158 atm |
| megapascal | 0.00013332 MPa |
| kip per square inch | 0.000019337 ksi |
| gigapascal | 1.3332e-07 GPa |
| million pounds per square inch | 1.9337e-08 Mpsi |
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