Convert inch of mercury to megapascal
1 inHg = 0.00338638864 MPa
1 inHg = 0.0033864 MPa
1 inHg in every pressure unit
| microbar | 33,864 μbar |
| barye | 33,864 Ba |
| millitorr | 25,400 mTorr |
| pascal | 3,386.4 Pa |
| millimeter of water column | 345.32 mmH₂O |
| pound per square foot | 70.726 lb/ft² |
| centimeter of water column | 34.532 cmH₂O |
| hectopascal | 33.864 hPa |
| millibar | 33.864 mbar |
| torr | 25.4 Torr |
| millimeter of mercury | 25.4 mmHg |
| inch of water column | 13.595 in w.g. |
| kilopascal | 3.3864 kPa |
| foot of water column | 1.1329 ft H₂O |
| inch of mercury | 1 inHg |
| pound per square inch | 0.49115 psi |
| meter of water column | 0.34532 m H₂O |
| decibar | 0.33864 dbar |
| kilogram-force per square centimeter | 0.034532 kgf/cm² |
| bar | 0.033864 bar |
| atmosphere | 0.033421 atm |
| megapascal | 0.0033864 MPa |
| kip per square inch | 0.00049115 ksi |
| gigapascal | 0.0000033864 GPa |
| million pounds per square inch | 4.9115e-07 Mpsi |
How the conversion works
Multiply by 0.00338638864 to go from inch 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 inch of mercury — 1 MPa = 295.299833 inHg.
inch of mercury to megapascal — common values
| 1 inHg | 0.0033863886 MPa |
| 2 inHg | 0.0067727773 MPa |
| 3 inHg | 0.010159166 MPa |
| 5 inHg | 0.016931943 MPa |
| 10 inHg | 0.033863886 MPa |
| 15 inHg | 0.05079583 MPa |
| 20 inHg | 0.067727773 MPa |
| 25 inHg | 0.084659716 MPa |
| 50 inHg | 0.16931943 MPa |
| 75 inHg | 0.25397915 MPa |
| 100 inHg | 0.33863886 MPa |
| 250 inHg | 0.84659716 MPa |
| 500 inHg | 1.6931943 MPa |
| 1000 inHg | 3.3863886 MPa |