Bar to mmHg Converter
Convert bar to millimetres of mercury — one bar is 750.06 mmHg. Results update as you type; exact factors shown.
One bar is 750.0616 millimetre of mercurys — see the exact factor, not a rounded rule of thumb.
How the bar to mmhg converter works
Pressures convert through the pascal (1 N/m²). One bar is exactly 100 kPa; a standard atmosphere is exactly 101.325 kPa; 1 psi is 6.894757 kPa (a pound-force on a square inch); 1 mmHg is 133.322 Pa by the conventional definition.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common pressure conversions
| From | To | Units |
|---|---|---|
| 0.01 bar | 7.5006 mmHg | bars to millimetre of mercurys |
| 0.1 bar | 75.0062 mmHg | bars to millimetre of mercurys |
| 0.5 bar | 375.0308 mmHg | bars to millimetre of mercurys |
| 1 bar | 750.0616 mmHg | bar to millimetre of mercurys |
| 1.013 bar | 759.8124 mmHg | bars to millimetre of mercurys |
| 2 bar | 1,500.1232 mmHg | bars to millimetre of mercurys |
| 3 bar | 2,250.1847 mmHg | bars to millimetre of mercurys |
| 5 bar | 3,750.3079 mmHg | bars to millimetre of mercurys |
| 10 bar | 7,500.6158 mmHg | bars to millimetre of mercurys |
| 20 bar | 15,001.2315 mmHg | bars to millimetre of mercurys |
| 50 bar | 37,503.0788 mmHg | bars to millimetre of mercurys |
| 100 bar | 75,006.1576 mmHg | bars to millimetre of mercurys |
Units in this converter and their exact factors
| Unit | Symbol | One unit in pascals |
|---|---|---|
| pascal | Pa | 1 pascal |
| kilopascal | kPa | 1,000 pascal |
| megapascal | MPa | 1,000,000 pascal |
| bar | bar | 100,000 pascal |
| millibar (hectopascal) | mbar | 100 pascal |
| standard atmosphere | atm | 101,325 pascal |
| pound per square inch | psi | 6,894.757293168 pascal |
| millimetre of mercury | mmHg | 133.322387415 pascal |
| inch of mercury | inHg | 3,386.389 pascal |
FAQFrequently asked questions about pressure conversion
How many mmHg in a bar?
750.062.
What is one atmosphere?
1.01325 bar, which is 760 mmHg.
Where is each used?
Bar for industrial and weather pressure; mmHg for medicine and vacuum work.
What is 0.1 bar?
75 mmHg.
Is a bar a metric unit?
It is accepted for use with SI but is not itself an SI unit. The pascal is.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.