Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 mmHg | 1.33322e-07 MPa | |
| 0.01 mmHg | 1.33322e-06 MPa | |
| 0.1 mmHg | 1.33322e-05 MPa | |
| 1 mmHg | 0.000133322 MPa | |
| 5 mmHg | 0.00066661 MPa | |
| 10 mmHg | 0.00133322 MPa | |
| 50 mmHg | 0.0066661 MPa | |
| 100 mmHg | 0.0133322 MPa | |
| 1000 mmHg | 0.133322 MPa |
Formula: Megapascal = mmHg × 0.0001333
Multiply any mmhg value by 0.0001333 to get megapascal.
Reverse: mmHg = Megapascal × 7501
Common mmhg values — factor: 1 mmHg = 0.0001333 MPa
| mmHg (mmHg) | Megapascal (MPa) | Context |
|---|---|---|
| 1 mmHg | 0.0001333 MPa | Very low / ophthalmic |
| 5 mmHg | 0.0006666 MPa | Low IOP |
| 10 mmHg | 0.001333 MPa | Diastolic minimum |
| 20 mmHg | 0.002666 MPa | Low BP diastolic |
| 40 mmHg | 0.005333 MPa | Low BP range |
| 60 mmHg | 0.007999 MPa | Hypotensive |
| 80 mmHg | 0.01067 MPa | Normal diastolic |
| 100 mmHg | 0.01333 MPa | Elevated diastolic |
| 120 mmHg | 0.016 MPa | Normal systolic |
| 200 mmHg | 0.02666 MPa | High BP |
| 300 mmHg | 0.04 MPa | Hypertensive crisis |
| 760 mmHg | 0.1013 MPa | 1 atm |
| 1,000 mmHg | 0.1333 MPa | Above atm |
| 2,000 mmHg | 0.2666 MPa | ~2.6 atm |
| 1e+04 mmHg | 1.333 MPa | ~13 atm |
1 mmHg = 0.0001333 MPa. Memorize for instant estimates.
Use 0.0001333 as a quick mental multiplier.
Multiply result by 7501 to recover the original mmHg value.
Measures and interprets blood pressure in mmHg — the global clinical standard.
Measures intraocular pressure in mmHg to screen for and manage glaucoma.
Monitors arterial blood pressure and ventilator settings in mmHg.
Specifies rough vacuum ranges in torr/mmHg for laboratory systems.
Measures pulmonary artery pressure and oxygen partial pressure in mmHg.
Quantifies gas partial pressures (O₂, CO₂) in blood and tissues in mmHg.
Millimeters of mercury (mmHg) is the traditional medical pressure unit, defined as the pressure exerted by a 1 mm column of mercury at 0°C under standard gravity. It equals 133.322 Pa and is numerically identical to the torr.
Blood pressure is universally measured in mmHg worldwide: normal blood pressure is about 120/80 mmHg. Intraocular pressure (glaucoma screening) is measured in mmHg. Gas partial pressures in physiology are quoted in mmHg.
Interesting fact: The sphygmomanometer (blood pressure cuff) still uses mmHg more than 130 years after its invention, making mmHg one of the most clinically important pressure units despite not being an SI unit.
The megapascal (MPa) equals 1,000,000 pascals (1,000 kPa) and is the standard unit for high-pressure engineering applications including hydraulics, structural materials, and industrial processes.
Steel has a tensile strength of about 400–550 MPa; concrete compressive strength is typically 20–40 MPa. Hydraulic systems in heavy machinery operate at 20–35 MPa. Water jet cutting uses pressures up to 600 MPa.
Interesting fact: The deepest point in the ocean (Mariana Trench, ~11,000 m) has a pressure of about 110 MPa — over 1,000 times atmospheric pressure.
Converting mmhg to megapascal is a common task in engineering, medicine, meteorology, and science. Different industries and countries use different pressure units — PSI in the US, bar in Europe, mmHg in medicine, and pascals in physics — making accurate conversion essential for cross-disciplinary work.
Quick reference: 5 mmHg = 0.0006666 MPa and 10 mmHg = 0.001333 MPa. For the reverse: 1 MPa = 7501 mmHg. The exact factor is 1 mmHg = 0.0001333 MPa.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.