Convert atmosphere to inch of water column
1 atm = 406.7824645 in w.g.
1 atm = 406.78 in w.g.
1 atm in every pressure unit
| microbar | 1,013,300 μbar |
| barye | 1,013,300 Ba |
| millitorr | 760,000 mTorr |
| pascal | 101,330 Pa |
| millimeter of water column | 10,332 mmH₂O |
| pound per square foot | 2,116.2 lb/ft² |
| centimeter of water column | 1,033.2 cmH₂O |
| hectopascal | 1,013.3 hPa |
| millibar | 1,013.3 mbar |
| torr | 760 Torr |
| millimeter of mercury | 760 mmHg |
| inch of water column | 406.78 in w.g. |
| kilopascal | 101.33 kPa |
| foot of water column | 33.899 ft H₂O |
| inch of mercury | 29.921 inHg |
| pound per square inch | 14.696 psi |
| meter of water column | 10.332 m H₂O |
| decibar | 10.133 dbar |
| kilogram-force per square centimeter | 1.0332 kgf/cm² |
| bar | 1.0132 bar |
| atmosphere | 1 atm |
| megapascal | 0.10132 MPa |
| kip per square inch | 0.014696 ksi |
| gigapascal | 0.00010132 GPa |
| million pounds per square inch | 0.000014696 Mpsi |
How the conversion works
Multiply by 406.7824645 to go from atmosphere to inch of water column, 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 water column to atmosphere — 1 in w.g. = 0.002458316391 atm.
atmosphere to inch of water column — common values
| 1 atm | 406.78246 in w.g. |
| 2 atm | 813.56493 in w.g. |
| 3 atm | 1,220.3474 in w.g. |
| 5 atm | 2,033.9123 in w.g. |
| 10 atm | 4,067.8246 in w.g. |
| 15 atm | 6,101.737 in w.g. |
| 20 atm | 8,135.6493 in w.g. |
| 25 atm | 10,169.562 in w.g. |
| 50 atm | 20,339.123 in w.g. |
| 75 atm | 30,508.685 in w.g. |
| 100 atm | 40,678.246 in w.g. |
| 250 atm | 101,695.62 in w.g. |
| 500 atm | 203,391.23 in w.g. |
| 1000 atm | 406,782.46 in w.g. |
Other pressure conversions
Pa → in w.g.kPa → in w.g.MPa → in w.g.bar → in w.g.atm → Paatm → kPaatm → MPaatm → bar