Convert megapascal to inch of mercury
1 MPa = 295.299833 inHg
sig figs
1 MPa = 295 inHg
1 MPa in every pressure unit
| microbar | 10,000,000 μbar |
| barye | 10,000,000 Ba |
| millitorr | 7,500,000 mTorr |
| pascal | 1,000,000 Pa |
| millimeter of water column | 102,000 mmH₂O |
| pound per square foot | 20,900 lb/ft² |
| centimeter of water column | 10,200 cmH₂O |
| hectopascal | 10,000 hPa |
| millibar | 10,000 mbar |
| torr | 7,500 Torr |
| millimeter of mercury | 7,500 mmHg |
| inch of water column | 4,010 in w.g. |
| kilopascal | 1,000 kPa |
| foot of water column | 335 ft H₂O |
| inch of mercury | 295 inHg |
| pound per square inch | 145 psi |
| meter of water column | 102 m H₂O |
| decibar | 100 dbar |
| kilogram-force per square centimeter | 10.2 kgf/cm² |
| bar | 10 bar |
| atmosphere | 9.87 atm |
| megapascal | 1 MPa |
| kip per square inch | 0.145 ksi |
| gigapascal | 0.001 GPa |
| million pounds per square inch | 0.000145 Mpsi |
Worth knowing
inch of mercury: Engine vacuum and vacuum-system readings in inHg are usually measured downward from atmosphere, so "20 inches of vacuum" means about 9.9 inHg absolute, not 20. Aviation and weather use inHg absolute. Read which convention the instrument uses before converting. Full definition →
How the conversion works
Multiply by 295.299833 to go from megapascal 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 megapascal: 1 inHg = 0.00338638864 MPa.
megapascal to inch of mercury: common values
| 1 MPa | 295.29983 inHg |
| 2 MPa | 590.59967 inHg |
| 3 MPa | 885.8995 inHg |
| 5 MPa | 1,476.4992 inHg |
| 10 MPa | 2,952.9983 inHg |
| 15 MPa | 4,429.4975 inHg |
| 20 MPa | 5,905.9967 inHg |
| 25 MPa | 7,382.4958 inHg |
| 50 MPa | 14,764.992 inHg |
| 75 MPa | 22,147.487 inHg |
| 100 MPa | 29,529.983 inHg |
| 250 MPa | 73,824.958 inHg |
| 500 MPa | 147,649.92 inHg |
| 1000 MPa | 295,299.83 inHg |