Convert atmosphere to inch of water column
1 atm = 406.7824645 in w.g.
1 atm = 407 in w.g.
1 atm in every pressure unit
| pascal | 101,000 Pa |
| kilopascal | 101 kPa |
| megapascal | 0.101 MPa |
| bar | 1.01 bar |
| atmosphere | 1 atm |
| millimeter of mercury | 760 mmHg |
| pound per square inch | 14.7 psi |
| foot of water column | 33.9 ft H₂O |
| gigapascal | 0.000101 GPa |
| kip per square inch | 0.0147 ksi |
| inch of mercury | 29.9 inHg |
| inch of water column | 407 in w.g. |
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