Handy Units
hPa to mmHghPa → mmHg
1 hPa = 0.750062 mmHg · 1 mmHg = 1.33322 hPa
Formula
mmHg ≈ hPa ÷ 1.33322
Example: 1,013.25 hPa = 1,013.25 ÷ 1.33322 = 760 mmHg
These units differ only by a fixed factor: multiply by it to convert, divide to go back. The factors are exact international definitions (for example 1 inch = 2.54 cm exactly); results are rounded only for display.
hPa and mmHg chart
| hPa (hPa) | mmHg (mmHg) |
|---|---|
| 950 hPa | 712.558 mmHg |
| 980 hPa | 735.06 mmHg |
| 1,000 hPa | 750.062 mmHg |
| 1,013.25 hPa | 760 mmHg |
| 1,020 hPa | 765.063 mmHg |
| 1,030 hPa | 772.563 mmHg |
| mmHg (mmHg) | hPa (hPa) |
|---|---|
| 60 mmHg | 79.9934 hPa |
| 80 mmHg | 106.658 hPa |
| 90 mmHg | 119.99 hPa |
| 100 mmHg | 133.322 hPa |
| 120 mmHg | 159.987 hPa |
| 140 mmHg | 186.651 hPa |
| 160 mmHg | 213.316 hPa |
| 760 mmHg | 1,013.25 hPa |
About these units
Hectopascal (hPa)Hectopascals: 1 hPa = 100 Pa, the same as a millibar. Weather maps use it; standard sea-level pressure is 1013.25 hPa.
Millimeter of mercury (mmHg)Millimeters of mercury, the unit of blood pressure: 1 mmHg ≈ 0.1333 kPa.
Questions
How many mmHg are in 1 hPa?
1 hPa = 0.750062 mmHg.
How many hPa are in 1 mmHg?
1 mmHg = 1.33322 hPa.