Kilopascals (kPa) to Millimeters of mercury (mmHg) Conversion
Kilopascals
The kilopascal (kPa) is a unit of pressure equal to exactly 1,000 pascals and is one of the most practical pressure units for everyday engineering. Standard atmospheric pressure is approximately 101.3 kPa. Tyre pressure is commonly specified in kPa in metric countries: a typical car tyre is inflated to 220–250 kPa. Blood pressure in clinical settings is measured in mmHg, but some medical devices express it in kPa (normal systolic ≈ 16 kPa).
Millimeters of mercury
The millimetre of mercury (mmHg) is a unit of pressure equal to the pressure exerted by a 1 mm column of mercury at 0 °C and standard gravity — approximately 133.322 Pa. It is the universal clinical standard for measuring blood pressure: normal adult blood pressure is approximately 120/80 mmHg (systolic/diastolic). The mmHg is also used in ophthalmology (intraocular pressure, normal ≈ 10–21 mmHg) and respiratory physiology.
| Kilopascals (kPa) | Millimeters of mercury (mmHg) |
|---|---|
| 0.1 kPa | 0.7501 mmHg |
| 1 kPa | 7.5006 mmHg |
| 2 kPa | 15.0012 mmHg |
| 3 kPa | 22.5019 mmHg |
| 5 kPa | 37.5031 mmHg |
| 10 kPa | 75.0062 mmHg |
| 20 kPa | 150.0123 mmHg |
| 30 kPa | 225.0185 mmHg |
| 50 kPa | 375.0308 mmHg |
| 100 kPa | 750.0617 mmHg |
| 1000 kPa | 7,500.6167 mmHg |
Frequently Asked Questions (FAQ)
How many millimeters of mercury are in 1 kilopascals?
1 kilopascals (kPa) is exactly 7.5006 millimeters of mercury (mmHg).
How do I convert kilopascals to millimeters of mercury?
Multiply the value in kilopascals by 7.5006 to get the result in millimeters of mercury. Or use the converter above — type any number and see the result instantly.