Pascals (Pa) to Millimeters of mercury (mmHg) Conversion
Pascals
The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square metre (N/m²), named after French mathematician Blaise Pascal who studied fluid pressure in the 17th century. Standard atmospheric pressure at sea level is 101,325 Pa (101.3 kPa). The pascal is a small unit for everyday use — a gentle breeze exerts approximately 1 Pa of dynamic pressure — so kilopascals (kPa) and megapascals (MPa) are more common in practical engineering contexts.
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.
| Pascals (Pa) | Millimeters of mercury (mmHg) |
|---|---|
| 0.1 Pa | 0.00075 mmHg |
| 1 Pa | 0.0075 mmHg |
| 2 Pa | 0.015 mmHg |
| 3 Pa | 0.0225 mmHg |
| 5 Pa | 0.0375 mmHg |
| 10 Pa | 0.075 mmHg |
| 20 Pa | 0.15 mmHg |
| 30 Pa | 0.225 mmHg |
| 50 Pa | 0.375 mmHg |
| 100 Pa | 0.7501 mmHg |
| 1000 Pa | 7.5006 mmHg |
Frequently Asked Questions (FAQ)
How many millimeters of mercury are in 1 pascals?
1 pascals (Pa) is exactly 0.007501 millimeters of mercury (mmHg).
How do I convert pascals to millimeters of mercury?
Multiply the value in pascals by 0.007501 to get the result in millimeters of mercury. Or use the converter above — type any number and see the result instantly.