Convert inch of mercury to megapascal
1 inHg = 0.00338638864 MPa
1 inHg = 0.00339 MPa
1 inHg in every pressure unit
| pascal | 3,390 Pa |
| kilopascal | 3.39 kPa |
| megapascal | 0.00339 MPa |
| bar | 0.0339 bar |
| atmosphere | 0.0334 atm |
| millimeter of mercury | 25.4 mmHg |
| pound per square inch | 0.491 psi |
| foot of water column | 1.13 ft H₂O |
| gigapascal | 0.00000339 GPa |
| kip per square inch | 0.000491 ksi |
| inch of mercury | 1 inHg |
| inch of water column | 13.6 in w.g. |
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 |