How to convert millimeters of mercury to kilopascals
- Take the value in millimeters of mercury.
- Use the formula kilopascals = millimeters of mercury × 0.1333223874.
- For example, 120 mmHg is 16 kPa.
About millimeters of mercury and kilopascals
A millimeter of mercury is the pressure of a 1 mm column of mercury, 133.322 pascals. Multiply mmHg by 0.133322 to get kPa. A handy shortcut is to divide by 7.5, which is accurate to better than 0.01%.
Blood pressure is measured in mmHg nearly everywhere, but medical papers and some hospital labs, including UK blood gas reports, give pressures in kPa. Standard sea-level air pressure is 760 mmHg, which is 101.325 kPa.
Examples
- 120 mmHg (a normal systolic blood pressure) is 16 kPa
- 80 mmHg (a normal diastolic blood pressure) is 10.67 kPa
- 40 mmHg (a normal carbon dioxide level in arterial blood) is 5.33 kPa
- 760 mmHg (standard air pressure at sea level) is 101.33 kPa
Millimeters of mercury to kilopascals chart
| Millimeters of mercury (mmHg) | Kilopascals (kPa) |
|---|---|
| 1 | 0.133 |
| 5 | 0.667 |
| 10 | 1.33 |
| 20 | 2.67 |
| 30 | 4 |
| 40 | 5.33 |
| 50 | 6.67 |
| 60 | 8 |
| 70 | 9.33 |
| 80 | 10.67 |
| 90 | 12 |
| Millimeters of mercury (mmHg) | Kilopascals (kPa) |
|---|---|
| 100 | 13.33 |
| 110 | 14.67 |
| 120 | 16 |
| 130 | 17.33 |
| 140 | 18.67 |
| 150 | 20 |
| 160 | 21.33 |
| 180 | 24 |
| 200 | 26.66 |
| 500 | 66.66 |
| 760 | 101.33 |