Convert kilopascal to inch of mercury
1 kPa = 0.295299833 inHg
sig figs
1 kPa = 0.295 inHg
1 kPa in every pressure unit
| microbar | 10,000 μbar |
| barye | 10,000 Ba |
| millitorr | 7,500 mTorr |
| pascal | 1,000 Pa |
| millimeter of water column | 102 mmH₂O |
| pound per square foot | 20.9 lb/ft² |
| centimeter of water column | 10.2 cmH₂O |
| hectopascal | 10 hPa |
| millibar | 10 mbar |
| torr | 7.5 Torr |
| millimeter of mercury | 7.5 mmHg |
| inch of water column | 4.01 in w.g. |
| kilopascal | 1 kPa |
| foot of water column | 0.335 ft H₂O |
| inch of mercury | 0.295 inHg |
| pound per square inch | 0.145 psi |
| meter of water column | 0.102 m H₂O |
| decibar | 0.1 dbar |
| kilogram-force per square centimeter | 0.0102 kgf/cm² |
| bar | 0.01 bar |
| atmosphere | 0.00987 atm |
| megapascal | 0.001 MPa |
| kip per square inch | 0.000145 ksi |
| gigapascal | 0.000001 GPa |
| million pounds per square inch | 1.45e-07 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 0.295299833 to go from kilopascal 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 kilopascal: 1 inHg = 3.38638864 kPa.
kilopascal to inch of mercury: common values
| 1 kPa | 0.29529983 inHg |
| 2 kPa | 0.59059967 inHg |
| 3 kPa | 0.8858995 inHg |
| 5 kPa | 1.4764992 inHg |
| 10 kPa | 2.9529983 inHg |
| 15 kPa | 4.4294975 inHg |
| 20 kPa | 5.9059967 inHg |
| 25 kPa | 7.3824958 inHg |
| 50 kPa | 14.764992 inHg |
| 75 kPa | 22.147487 inHg |
| 100 kPa | 29.529983 inHg |
| 250 kPa | 73.824958 inHg |
| 500 kPa | 147.64992 inHg |
| 1000 kPa | 295.29983 inHg |
Other pressure conversions
Pa → inHgkPa → PakPa → MPakPa → barkPa → atmkPa → psikPa → mmHgkPa → ft H₂O