1 mmHg equals 0.00133322 bar. To convert mmHg to bar, multiply the value by 0.00133322; divide by 0.00133322 to convert back. Enter any number above and the result appears instantly — free and entirely in your browser.
How do you convert mmHg to bar?
The conversion formula is bar = mmHg × 0.00133322. The conversion factor is fixed by definition, so the result is always exact.
mmHg to bar conversion table
| mmHg | bar |
|---|---|
| 1 mmHg | 0.00133322 bar |
| 2 mmHg | 0.00266645 bar |
| 5 mmHg | 0.00666612 bar |
| 10 mmHg | 0.0133322 bar |
| 20 mmHg | 0.0266645 bar |
| 50 mmHg | 0.0666612 bar |
What is mmHg (mmHg)?
The millimetre of mercury (mmHg), also called torr, equals about 133.322 pascals. It survives mainly in medicine for blood pressure and in vacuum technology.
What is bar (bar)?
The bar is a metric pressure unit equal to exactly 100,000 pascals — very close to average air pressure at sea level. It is widely used across Europe for tyre pressure, weather reports and industrial systems.
Why convert mmHg to bar?
Pressure units differ by region and field: Europe uses bar, the US uses psi, science uses pascals and kilopascals, and medicine still uses mmHg. Converting between them is a daily need for mechanics, engineers and divers.
Standard atmospheric pressure is defined as exactly 101,325 Pa — equal to 1.01325 bar or 14.696 psi (BIPM/NIST). Car tyres are typically inflated to about 2.2–2.5 bar (32–36 psi).
How to convert mmHg to bar
- Enter the value in mmHg into the left field of the converter.
- Read the result in bar instantly in the right field — it updates automatically.
- Use the swap button to reverse the direction (bar to mmHg).
The converter runs entirely in your browser: no uploads, no queue, no limits. You can even use it offline.