1 英寸汞柱（inHg）等於 13.5951014 inH₂O，1 英寸水柱（inH₂O）等於 0.0735559057 inHg。
| 英寸汞柱 | 英寸水柱 |
|---|---|
| 0.01 inHg | 0.135951014 inH₂O |
| 0.1 inHg | 1.35951014 inH₂O |
| 1 inHg | 13.5951014 inH₂O |
| 2 inHg | 27.1902029 inH₂O |
| 3 inHg | 40.7853043 inH₂O |
| 4 inHg | 54.3804058 inH₂O |
| 5 inHg | 67.9755072 inH₂O |
| 6 inHg | 81.5706087 inH₂O |
| 7 inHg | 95.1657101 inH₂O |
| 8 inHg | 108.760812 inH₂O |
| 9 inHg | 122.355913 inH₂O |
| 10 inHg | 135.951014 inH₂O |
| 20 inHg | 271.902029 inH₂O |
| 30 inHg | 407.853043 inH₂O |
| 40 inHg | 543.804058 inH₂O |
| 50 inHg | 679.755072 inH₂O |
| 60 inHg | 815.706087 inH₂O |
| 70 inHg | 951.657101 inH₂O |
| 80 inHg | 1,087.60812 inH₂O |
| 90 inHg | 1,223.55913 inH₂O |
| 100 inHg | 1,359.51014 inH₂O |
| 200 inHg | 2,719.02029 inH₂O |
| 300 inHg | 4,078.53043 inH₂O |
| 500 inHg | 6,797.55072 inH₂O |
| 1,000 inHg | 13,595.1014 inH₂O |
| 10,000 inHg | 135,951.014 inH₂O |
| 帕斯卡 | 3,386.389 Pa |
| 百帕 | 33.86389 hPa |
| 千帕 | 3.386389 kPa |
| 兆帕 | 0.003386389 MPa |
| 吉帕 | 0.000003386389 GPa |
| 巴 | 0.03386389 bar |
| 毫巴 | 33.86389 mbar |
| 磅力每平方英寸 | 0.4911542 psi |
| 千磅力每平方英寸 | 0.0004911542 ksi |
| 磅力每平方英尺 | 70.7262047 psf |
| 公斤力每平方公分 | 0.0345315577 kgf/cm² |
| 大氣壓 | 0.0334210609 atm |
| 托 | 25.4000063 Torr |
| 毫米汞柱 | 25.4000027 mmHg |
| 英寸汞柱 | 1 inHg |
| 毫米水柱 | 345.315577 mmH₂O |
| 英寸水柱 | 13.5951014 inH₂O |
| 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 |
| 磅力每平方英寸 | 0.036127292 psi |
| 千磅力每平方英寸 | 0.000036127292 ksi |
| 磅力每平方英尺 | 5.20233005 psf |
| 公斤力每平方公分 | 0.00254 kgf/cm² |
| 大氣壓 | 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 |