Millimeters of mercury (mmHg) to Megapascals (MPa) Conversion
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.
Megapascals
The megapascal (MPa) is a unit of pressure equal to exactly 1,000,000 pascals (10⁶ Pa) and is the standard unit for expressing material strength, hydraulic system pressure, and structural loading in engineering. The tensile strength of structural steel is approximately 400–600 MPa; high-strength carbon fibre composites can exceed 3,500 MPa. Hydraulic systems in heavy machinery operate at 20–70 MPa. In geology, lithostatic pressure in the Earth's crust is measured in MPa and GPa.
| Millimeters of mercury (mmHg) | Megapascals (MPa) |
|---|---|
| 0.1 mmHg | 0.0000133 MPa |
| 1 mmHg | 0.000133 MPa |
| 2 mmHg | 0.000267 MPa |
| 3 mmHg | 0.0004 MPa |
| 5 mmHg | 0.000667 MPa |
| 10 mmHg | 0.00133 MPa |
| 20 mmHg | 0.00267 MPa |
| 30 mmHg | 0.004 MPa |
| 50 mmHg | 0.00667 MPa |
| 100 mmHg | 0.0133 MPa |
| 1000 mmHg | 0.1333 MPa |
Frequently Asked Questions (FAQ)
How many megapascals are in 1 millimeters of mercury?
1 millimeters of mercury (mmHg) is exactly 0.000133 megapascals (MPa).
How do I convert millimeters of mercury to megapascals?
Multiply the value in millimeters of mercury by 0.000133 to get the result in megapascals. Or use the converter above — type any number and see the result instantly.