1 Atmosphere (atm) equals 406.782462 inH₂O, and 1 Inch of Water (inH₂O) equals 0.00245831641 atm.
| Atmosphere | Inch of Water |
|---|---|
| 0.01 atm | 4.06782462 inH₂O |
| 0.1 atm | 40.6782462 inH₂O |
| 1 atm | 406.782462 inH₂O |
| 2 atm | 813.564923 inH₂O |
| 3 atm | 1,220.34739 inH₂O |
| 4 atm | 1,627.12985 inH₂O |
| 5 atm | 2,033.91231 inH₂O |
| 6 atm | 2,440.69477 inH₂O |
| 7 atm | 2,847.47723 inH₂O |
| 8 atm | 3,254.25969 inH₂O |
| 9 atm | 3,661.04216 inH₂O |
| 10 atm | 4,067.82462 inH₂O |
| 20 atm | 8,135.64923 inH₂O |
| 30 atm | 12,203.4739 inH₂O |
| 40 atm | 16,271.2985 inH₂O |
| 50 atm | 20,339.1231 inH₂O |
| 60 atm | 24,406.9477 inH₂O |
| 70 atm | 28,474.7723 inH₂O |
| 80 atm | 32,542.5969 inH₂O |
| 90 atm | 36,610.4216 inH₂O |
| 100 atm | 40,678.2462 inH₂O |
| 200 atm | 81,356.4923 inH₂O |
| 300 atm | 122,034.739 inH₂O |
| 500 atm | 203,391.231 inH₂O |
| 1,000 atm | 406,782.462 inH₂O |
| 10,000 atm | 4,067,824.62 inH₂O |
| Pascal | 101,325 Pa |
| Hectopascal | 1,013.25 hPa |
| Kilopascal | 101.325 kPa |
| Megapascal | 0.101325 MPa |
| Gigapascal | 0.000101325 GPa |
| Bar | 1.01325 bar |
| Millibar | 1,013.25 mbar |
| Pound per Square Inch | 14.6959488 psi |
| Kilopound per Square Inch | 0.0146959488 ksi |
| Pound per Square Foot | 2,116.21662 psf |
| Kilogram-force per Square Centimeter | 1.03322745 kgf/cm² |
| Atmosphere | 1 atm |
| Torr | 760 Torr |
| Millimeter of Mercury | 759.999892 mmHg |
| Inch of Mercury | 29.9212524 inHg |
| Millimeter of Water | 10,332.2745 mmH₂O |
| Inch of Water | 406.782462 inH₂O |
| Pascal | 249.08891 Pa |
| Hectopascal | 2.4908891 hPa |
| Kilopascal | 0.24908891 kPa |
| Megapascal | 0.00024908891 MPa |
| Gigapascal | 0.00000024908891 GPa |
| Bar | 0.0024908891 bar |
| Millibar | 2.4908891 mbar |
| Pound per Square Inch | 0.036127292 psi |
| Kilopound per Square Inch | 0.000036127292 ksi |
| Pound per Square Foot | 5.20233005 psf |
| Kilogram-force per Square Centimeter | 0.00254 kgf/cm² |
| Atmosphere | 0.00245831641 atm |
| Torr | 1.86832047 Torr |
| Millimeter of Mercury | 1.8683202 mmHg |
| Inch of Mercury | 0.0735559057 inHg |
| Millimeter of Water | 25.4 mmH₂O |
| Inch of Water | 1 inH₂O |