1 英寸水柱（inH₂O）等于 249.08891 Pa，1 帕斯卡（Pa）等于 0.00401463076 inH₂O。
| 英寸水柱 | 帕斯卡 |
|---|---|
| 0.01 inH₂O | 2.4908891 Pa |
| 0.1 inH₂O | 24.908891 Pa |
| 1 inH₂O | 249.08891 Pa |
| 2 inH₂O | 498.17782 Pa |
| 3 inH₂O | 747.26673 Pa |
| 4 inH₂O | 996.35564 Pa |
| 5 inH₂O | 1,245.44455 Pa |
| 6 inH₂O | 1,494.53346 Pa |
| 7 inH₂O | 1,743.62237 Pa |
| 8 inH₂O | 1,992.71128 Pa |
| 9 inH₂O | 2,241.80019 Pa |
| 10 inH₂O | 2,490.8891 Pa |
| 20 inH₂O | 4,981.7782 Pa |
| 30 inH₂O | 7,472.6673 Pa |
| 40 inH₂O | 9,963.5564 Pa |
| 50 inH₂O | 12,454.4455 Pa |
| 60 inH₂O | 14,945.3346 Pa |
| 70 inH₂O | 17,436.2237 Pa |
| 80 inH₂O | 19,927.1128 Pa |
| 90 inH₂O | 22,418.0019 Pa |
| 100 inH₂O | 24,908.891 Pa |
| 200 inH₂O | 49,817.782 Pa |
| 300 inH₂O | 74,726.673 Pa |
| 500 inH₂O | 124,544.455 Pa |
| 1,000 inH₂O | 249,088.91 Pa |
| 10,000 inH₂O | 2,490,889.1 Pa |
| 帕斯卡 | 249.08891 Pa |
| 百帕 | 2.4908891 hPa |
| 千帕 | 0.24908891 kPa |
| 兆帕 | 0.00024908891 MPa |
| 吉帕 | 0.00000024908891 GPa |
| 巴 | 0.0024908891 bar |
| 毫巴 | 2.4908891 mbar |
| 磅/平方英寸 | 0.036127292 psi |
| 千磅/平方英寸 | 0.000036127292 ksi |
| 磅/平方英尺 | 5.20233005 psf |
| 千克力/平方厘米 | 0.00254 kgf/cm² |
| 标准大气压 | 0.00245831641 atm |
| 托 | 1.86832047 Torr |
| 毫米汞柱 | 1.8683202 mmHg |
| 英寸汞柱 | 0.0735559057 inHg |
| 毫米水柱 | 25.4 mmH₂O |
| 英寸水柱 | 1 inH₂O |
| 帕斯卡 | 1 Pa |
| 百帕 | 0.01 hPa |
| 千帕 | 0.001 kPa |
| 兆帕 | 0.000001 MPa |
| 吉帕 | 0.000000001 GPa |
| 巴 | 0.00001 bar |
| 毫巴 | 0.01 mbar |
| 磅/平方英寸 | 0.000145037738 psi |
| 千磅/平方英寸 | 0.000000145037738 ksi |
| 磅/平方英尺 | 0.0208854342 psf |
| 千克力/平方厘米 | 0.0000101971621 kgf/cm² |
| 标准大气压 | 0.00000986923267 atm |
| 托 | 0.00750061683 Torr |
| 毫米汞柱 | 0.00750061576 mmHg |
| 英寸汞柱 | 0.000295299802 inHg |
| 毫米水柱 | 0.101971621 mmH₂O |
| 英寸水柱 | 0.00401463076 inH₂O |