压力是垂直于每个单位区域表面施加的力。它是在pascal（PA）中测量的。
1 hPa = 0.75 mmHg
1 mmHg = 1.333 hPa
例子:
将15 海毛转换为汞的毫米：
15 hPa = 11.251 mmHg
| 海毛 | 汞的毫米 |
|---|---|
| 0.01 hPa | 0.008 mmHg |
| 0.1 hPa | 0.075 mmHg |
| 1 hPa | 0.75 mmHg |
| 2 hPa | 1.5 mmHg |
| 3 hPa | 2.25 mmHg |
| 5 hPa | 3.75 mmHg |
| 10 hPa | 7.501 mmHg |
| 20 hPa | 15.001 mmHg |
| 30 hPa | 22.502 mmHg |
| 40 hPa | 30.003 mmHg |
| 50 hPa | 37.503 mmHg |
| 60 hPa | 45.004 mmHg |
| 70 hPa | 52.504 mmHg |
| 80 hPa | 60.005 mmHg |
| 90 hPa | 67.506 mmHg |
| 100 hPa | 75.006 mmHg |
| 250 hPa | 187.516 mmHg |
| 500 hPa | 375.032 mmHg |
| 750 hPa | 562.548 mmHg |
| 1000 hPa | 750.064 mmHg |
| 10000 hPa | 7,500.638 mmHg |
| 100000 hPa | 75,006.376 mmHg |
规则