Bar to mmHg Converter
Enter a value to instantly convert between pressure units.
1 Bar = 750.0616 mmHg
Key Formulas
Pound per Sq. Inch → Bar
bar = psi × 0.0689476Bar → Pound per Sq. Inch
psi = bar × 14.5038Atmosphere → Pound per Sq. Inch
psi = atm × 14.6959Pound per Sq. Inch → Atmosphere
atm = psi × 0.068046Formula
mmHg = bar × 750.062One bar equals exactly 100,000 pascals. Since one mmHg equals 133.322 pascals (the pressure of a 1 mm mercury column), dividing 100,000 by 133.322 gives 750.062 mmHg per bar. This conversion is essential when translating European industrial pressure (bar) specifications to medical contexts (mmHg for blood pressure) and laboratory vacuum systems where both units appear.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
1 bar = 750 mmHg. Industrial baseline: slightly higher than standard atmosphere (760 mmHg).
1 bar = 750.062 mmHg
Standard atmospheric pressure = 1.01325 bar = exactly 760 mmHg by historical definition.
1.01325 bar = 760 mmHg
A laboratory vacuum chamber at 0.5 bar = 375 mmHg (partial vacuum) for distillation work.
0.5 bar = 375.031 mmHg
A hyperbaric oxygen chamber at 2 bar = 1500 mmHg absolute pressure for medical treatment.
2 bar = 1500.124 mmHg