Convert bar to inch of mercury
1 bar = 29.5299833 inHg
sig figs
1 bar = 29.5 inHg
1 bar in every pressure unit
| microbar | 1,000,000 μbar |
| barye | 1,000,000 Ba |
| millitorr | 750,000 mTorr |
| pascal | 100,000 Pa |
| millimeter of water column | 10,200 mmH₂O |
| pound per square foot | 2,090 lb/ft² |
| centimeter of water column | 1,020 cmH₂O |
| hectopascal | 1,000 hPa |
| millibar | 1,000 mbar |
| torr | 750 Torr |
| millimeter of mercury | 750 mmHg |
| inch of water column | 401 in w.g. |
| kilopascal | 100 kPa |
| foot of water column | 33.5 ft H₂O |
| inch of mercury | 29.5 inHg |
| pound per square inch | 14.5 psi |
| meter of water column | 10.2 m H₂O |
| decibar | 10 dbar |
| kilogram-force per square centimeter | 1.02 kgf/cm² |
| bar | 1 bar |
| atmosphere | 0.987 atm |
| megapascal | 0.1 MPa |
| kip per square inch | 0.0145 ksi |
| gigapascal | 0.0001 GPa |
| million pounds per square inch | 0.0000145 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 29.5299833 to go from bar 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 bar: 1 inHg = 0.0338638864 bar.
bar to inch of mercury: common values
| 1 bar | 29.529983 inHg |
| 2 bar | 59.059967 inHg |
| 3 bar | 88.58995 inHg |
| 5 bar | 147.64992 inHg |
| 10 bar | 295.29983 inHg |
| 15 bar | 442.94975 inHg |
| 20 bar | 590.59967 inHg |
| 25 bar | 738.24958 inHg |
| 50 bar | 1,476.4992 inHg |
| 75 bar | 2,214.7487 inHg |
| 100 bar | 2,952.9983 inHg |
| 250 bar | 7,382.4958 inHg |
| 500 bar | 14,764.992 inHg |
| 1000 bar | 29,529.983 inHg |