How to convert millimeters of mercury to hectopascals
Formula: hPa = mmHg × 1.33322
Worked example: 120 mmHg → 120 × 1.33322 = 159.987 hPa
Millimeters of mercury to hectopascals conversion chart
| Millimeters of mercury (mmHg) | Hectopascals (hPa) |
|---|---|
| 60 mmHg | 79.9934 hPa |
| 70 mmHg | 93.3257 hPa |
| 80 mmHg | 106.658 hPa |
| 90 mmHg | 119.99 hPa |
| 100 mmHg | 133.322 hPa |
| 110 mmHg | 146.655 hPa |
| 120 mmHg | 159.987 hPa |
| 130 mmHg | 173.319 hPa |
| 140 mmHg | 186.651 hPa |
| 160 mmHg | 213.316 hPa |
| 180 mmHg | 239.98 hPa |
| 200 mmHg | 266.645 hPa |
| 760 mmHg | 1,013.25 hPa |
What is a millimeter of mercury?
The millimeter of mercury, about 133.32 pascals, comes from mercury barometers. It remains the unit of blood pressure worldwide: a reading of 120/80 mmHg means a systolic pressure of 120 and a diastolic pressure of 80.
What is a hectopascal?
The hectopascal equals 100 pascals and is identical to the millibar. Weather maps and forecasts outside the US give air pressure in hectopascals; standard sea-level pressure is 1013.25 hPa, and a strong hurricane can drop below 950 hPa.