Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 Pa | 7.50064e-06 mmHg | |
| 0.01 Pa | 7.50064e-05 mmHg | |
| 0.1 Pa | 0.000750064 mmHg | |
| 1 Pa | 0.00750064 mmHg | |
| 5 Pa | 0.0375032 mmHg | |
| 10 Pa | 0.0750064 mmHg | |
| 50 Pa | 0.375032 mmHg | |
| 100 Pa | 0.750064 mmHg | |
| 1000 Pa | 7.50064 mmHg |
Formula: mmHg = Pascal × 0.007501
Multiply any pascal value by 0.007501 to get mmhg.
Reverse: Pascal = mmHg × 133.3
Common pascal values — factor: 1 Pa = 0.007501 mmHg
| Pascal (Pa) | mmHg (mmHg) | Context |
|---|---|---|
| 1 Pa | 0.007501 mmHg | 1 Pa — light breeze |
| 100 Pa | 0.7501 mmHg | 1 mbar |
| 1,000 Pa | 7.501 mmHg | 10 mbar |
| 1e+04 Pa | 75.01 mmHg | 0.1 atm |
| 101,300 Pa | 760 mmHg | 1 atm / sea level |
| 200,000 Pa | 1,500 mmHg | 2 bar |
| 500,000 Pa | 3,750 mmHg | 10 bar |
| 1,000,000 Pa | 7,501 mmHg | 10 bar |
| 10,000,000 Pa | 7.501e+04 mmHg | 100 bar |
| 100,000,000 Pa | 750,100 mmHg | 1,000 bar |
| 6,895 Pa | 51.72 mmHg | 1 psi |
| 133.3 Pa | 1 mmHg | 1 mbar |
| 3,386 Pa | 25.4 mmHg | 1 psi |
| 9.807e+04 Pa | 735.6 mmHg | 1 atm / sea level |
| 1.000e+09 Pa | 7,501,000 mmHg | 10,000 bar |
1 Pa = 0.007501 mmHg. Memorize for instant estimates.
Use 0.0075 as a quick mental multiplier.
Multiply result by 133.3 to recover the original Pa value.
Measures sound pressure levels in pascals — 20 μPa is the threshold of hearing.
Measures wind load on structures and façade pressure in pascals.
Specifies air pressure differentials across filters and dampers in Pa.
Calibrates pressure instruments traceable to SI pascal standards.
Solves Navier-Stokes equations with pressure in pascals.
Controls process chamber pressure in mPa range for deposition processes.
The pascal (Pa) is the SI derived unit of pressure, defined as one newton per square meter. It was named after Blaise Pascal, the 17th-century French mathematician and physicist who studied fluid pressure. The unit was officially adopted by the International System of Units in 1971.
Pascals are used in meteorology (atmospheric pressure ~101,325 Pa), materials science (Young's modulus in GPa), and fluid mechanics. The pascal is very small — standard atmospheric pressure equals 101,325 Pa.
Interesting fact: Blaise Pascal demonstrated in 1648 that atmospheric pressure decreases with altitude by carrying a barometer up the Puy de Dôme mountain, confirming Torricelli's theory of atmospheric pressure.
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.
Converting pascal to mmhg 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 Pa = 0.0375 mmHg and 10 Pa = 0.07501 mmHg. For the reverse: 1 mmHg = 133.3 Pa. The exact factor is 1 Pa = 0.007501 mmHg.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.