Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 bar | 0.750064 mmHg | |
| 0.01 bar | 7.50064 mmHg | |
| 0.1 bar | 75.0064 mmHg | |
| 1 bar | 750.064 mmHg | |
| 5 bar | 3750.32 mmHg | |
| 10 bar | 7500.64 mmHg | |
| 50 bar | 37503.2 mmHg | |
| 100 bar | 75006.4 mmHg | |
| 1000 bar | 750064 mmHg |
Formula: mmHg = Bar × 750.1
Multiply any bar value by 750.1 to get mmhg.
Reverse: Bar = mmHg × 0.001333
Common bar values — factor: 1 bar = 750.1 mmHg
| Bar (bar) | mmHg (mmHg) | Context |
|---|---|---|
| 0.001 bar | 0.7501 mmHg | 0.1 kPa |
| 0.01 bar | 7.501 mmHg | 1 kPa |
| 0.1 bar | 75.01 mmHg | 10 kPa |
| 1 bar | 750.1 mmHg | 100 kPa / ~1 atm |
| 1.013 bar | 760 mmHg | 1 standard atm |
| 2 bar | 1,500 mmHg | 29 psi / car tire |
| 5 bar | 3,750 mmHg | 72 psi |
| 10 bar | 7,501 mmHg | 145 psi |
| 100 bar | 7.501e+04 mmHg | 1,450 psi |
| 200 bar | 150,000 mmHg | Scuba tank |
| 300 bar | 225,000 mmHg | High-pressure system |
| 500 bar | 375,000 mmHg | 5,000 psi |
| 1,000 bar | 750,100 mmHg | 10,000 psi |
| 0.06895 bar | 51.72 mmHg | 1 psi |
| 0.001333 bar | 0.9998 mmHg | 1 mmHg |
1 bar = 750.1 mmHg. Memorize for instant estimates.
Use 750.1 as a quick mental multiplier.
Multiply result by 0.001333 to recover the original bar value.
Monitors dive cylinder pressure in bar — standard in most of the world (200–300 bar).
Reads surface pressure maps in millibar (1 mbar = 0.001 bar) for weather forecasting.
Designs European hydraulic systems — pumps and actuators are rated in bar.
Controls fermentation vessel pressure (1–3 bar) and carbonation pressures in bar.
Specifies pipeline operating pressures and safety relief settings in bar.
Monitors tire pressure and boost pressure on turbocharged engines in bar.
The bar is a metric unit of pressure equal to exactly 100,000 pascals — very close to standard atmospheric pressure (1 atm = 1.01325 bar). It was introduced in 1909 and is widely used in Europe for weather forecasting, diving, and industrial applications.
Scuba diving cylinders are filled to 200–300 bar. Automotive tire pressure gauges often display in bar across Europe. Industrial compressors and hydraulic systems are commonly rated in bar.
Interesting fact: The millibar (mbar = hPa) is the standard unit for atmospheric pressure in meteorology worldwide. Standard sea-level atmospheric pressure is 1013.25 mbar.
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 bar 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 bar = 3750 mmHg and 10 bar = 7501 mmHg. For the reverse: 1 mmHg = 0.001333 bar. The exact factor is 1 bar = 750.1 mmHg.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.