Bar to mmHg Converter
Convert bar to millimeters of mercury — one bar is 750.06 mmHg. Results update as you type; exact factors shown.
One bar is 750.0616 millimeter 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 US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.
Common pressure conversions
| From | To | Units |
|---|---|---|
| 0.01 bar | 7.5006 mmHg | bars to millimeter of mercurys |
| 0.1 bar | 75.0062 mmHg | bars to millimeter of mercurys |
| 0.5 bar | 375.0308 mmHg | bars to millimeter of mercurys |
| 1 bar | 750.0616 mmHg | bar to millimeter of mercurys |
| 1.013 bar | 759.8124 mmHg | bars to millimeter of mercurys |
| 2 bar | 1,500.1232 mmHg | bars to millimeter of mercurys |
| 3 bar | 2,250.1847 mmHg | bars to millimeter of mercurys |
| 5 bar | 3,750.3079 mmHg | bars to millimeter of mercurys |
| 10 bar | 7,500.6158 mmHg | bars to millimeter of mercurys |
| 20 bar | 15,001.2315 mmHg | bars to millimeter of mercurys |
| 50 bar | 37,503.0788 mmHg | bars to millimeter of mercurys |
| 100 bar | 75,006.1576 mmHg | bars to millimeter 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 |
| millimeter 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 Institute of Standards and Technology (NIST) — United States's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.