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Pressure
MmHg to Megapascals
Convert mmHg (mmHg) to megapascals (MPa). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 mmHg = 0.000133 MPa
MmHg to Megapascals Conversion Table
Common values, ready to copy:
| mmHg | megapascals |
|---|---|
| 1 mmHg | 0.000133 MPa |
| 2 mmHg | 0.000267 MPa |
| 5 mmHg | 0.000667 MPa |
| 10 mmHg | 0.001333 MPa |
| 25 mmHg | 0.003333 MPa |
| 50 mmHg | 0.006666 MPa |
| 100 mmHg | 0.013332 MPa |
| 1,000 mmHg | 0.133322 MPa |
Formula
megapascals = mmHg × 0.000133322
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
About MmHg and Megapascals
MmHg (mmHg): Millimeters of mercury; the pressure exerted by a column of mercury that height; a torr is essentially identical (1 mmHg ≈ 1 torr to within 1 part in 7 million). Common uses: Blood pressure (systolic over diastolic, in mmHg), vacuum systems, barometric pressure in some medical and scientific contexts.
Megapascals (MPa): A million pascals, or 10 bar; the unit for high-pressure engineering contexts. Common uses: Concrete and steel strength specifications, hydraulic systems, deep-water pressures, and some industrial process measurements.
How the conversion works
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
The exact relationship is megapascals = mmHg × 0.000133322, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between mmHg and megapascals comes up wherever pressure measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.