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 mbar = 1 hPa
1 hPa = 1 mbar
例子:
将15 中间的转换为海毛：
15 mbar = 15 hPa
| 中间的 | 海毛 |
|---|---|
| 0.01 mbar | 0.01 hPa |
| 0.1 mbar | 0.1 hPa |
| 1 mbar | 1 hPa |
| 2 mbar | 2 hPa |
| 3 mbar | 3 hPa |
| 5 mbar | 5 hPa |
| 10 mbar | 10 hPa |
| 20 mbar | 20 hPa |
| 30 mbar | 30 hPa |
| 40 mbar | 40 hPa |
| 50 mbar | 50 hPa |
| 60 mbar | 60 hPa |
| 70 mbar | 70 hPa |
| 80 mbar | 80 hPa |
| 90 mbar | 90 hPa |
| 100 mbar | 100 hPa |
| 250 mbar | 250 hPa |
| 500 mbar | 500 hPa |
| 750 mbar | 750 hPa |
| 1000 mbar | 1,000 hPa |
| 10000 mbar | 10,000 hPa |
| 100000 mbar | 100,000 hPa |
规则