1 mmHg = 0.00133322 bar
1 millimeter of mercury equals 0.00133322 bars. To convert millimeters of mercury to bars, multiply the millimeter of mercury value by 0.00133322. For quick reference: 1 mmHg = 0.00133322 bar, 5 mmHg = 0.00666612 bar, 10 mmHg = 0.0133322 bar, 100 mmHg = 0.133322 bar.
Bars = Millimeters of mercury × 0.00133322Start with your value in millimeters of mercury.
Multiply the millimeter of mercury value by 0.00133322. This is the exact conversion factor from millimeters of mercury to bars.
The product is your value in bars. For example, 5 mmHg × 0.00133322 = 0.00666612 bar.
The exact factor from millimeters of mercury to bars is 0.00133322.
Bars = Millimeters of mercury × 0.00133322
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Millimeters of mercury (mmHg) | Bars (bar) |
|---|---|
| 0.001 mmHg | 1.3332 × 10^−6 bar |
| 0.01 mmHg | 1.3332 × 10^−5 bar |
| 0.1 mmHg | 0.00013332 bar |
| 0.5 mmHg | 0.00066661 bar |
| 1 mmHg | 0.0013332 bar |
| 1.5 mmHg | 0.0019998 bar |
| 2 mmHg | 0.0026664 bar |
| 2.5 mmHg | 0.0033331 bar |
| 3 mmHg | 0.0039997 bar |
| 4 mmHg | 0.0053329 bar |
| 5 mmHg | 0.0066661 bar |
| 6 mmHg | 0.0079993 bar |
| 7 mmHg | 0.0093326 bar |
| 8 mmHg | 0.010666 bar |
| 9 mmHg | 0.011999 bar |
| 10 mmHg | 0.013332 bar |
| 14 mmHg | 0.018665 bar |
| 15 mmHg | 0.019998 bar |
| 20 mmHg | 0.026664 bar |
| 25 mmHg | 0.033331 bar |
| 30 mmHg | 0.039997 bar |
| 32 mmHg | 0.042663 bar |
| 35 mmHg | 0.046663 bar |
| 40 mmHg | 0.053329 bar |
| 50 mmHg | 0.066661 bar |
| 60 mmHg | 0.079993 bar |
| 75 mmHg | 0.099992 bar |
| 80 mmHg | 0.10666 bar |
| 100 mmHg | 0.13332 bar |
| 101.325 mmHg | 0.13509 bar |
| 150 mmHg | 0.19998 bar |
| 200 mmHg | 0.26664 bar |
| 250 mmHg | 0.33331 bar |
| 300 mmHg | 0.39997 bar |
| 400 mmHg | 0.53329 bar |
| 500 mmHg | 0.66661 bar |
| 760 mmHg | 1.0133 bar |
| 1000 mmHg | 1.3332 bar |
| 1013.25 mmHg | 1.3509 bar |
| 2000 mmHg | 2.6664 bar |
| 5000 mmHg | 6.6661 bar |
| 10000 mmHg | 13.332 bar |
| 14.7 mmHg | 0.019598 bar |
| 50000 mmHg | 66.661 bar |
| 100000 mmHg | 133.32 bar |
| 101325 mmHg | 135.09 bar |
| 200000 mmHg | 266.64 bar |
| 500000 mmHg | 666.61 bar |
| 1000000 mmHg | 1333.2 bar |
| 10000000 mmHg | 13332 bar |
Normal blood pressure is around 120/80 mmHg. Atmospheric pressure at sea level is roughly 760 mmHg.
The millimeter of mercury (mmHg) equals approximately 133.322 Pa — the pressure exerted by a 1 mm column of mercury under standard gravity. It is the conventional unit for blood pressure worldwide, even in countries that have otherwise gone fully metric.
The bar equals exactly 100,000 pascals — close to but not equal to standard atmospheric pressure (1 atm = 1.01325 bar). It is the working unit for compressed-air systems, pneumatic tools, dive computers, and weather pressure outside North America.