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Convert millimeter of mercury to bar

Here you can quickly calculate how many bar fit in one millimeter of mercury.
  • 1 mmHg = 0.001333 bar
  • 1 bar = 750.061576 mmHg

Millimeter of mercury to bar conversion table

millimeter of mercury bar
1 0.001333
2 0.002666
5 0.006666
10 0.013332
20 0.026664
50 0.066661
100 0.133322

Formula to convert millimeter of mercury to bar

To convert millimeter of mercury to bar, multiply by 0.001333.

1 mmHg = 0.001333 bar
Example: 1 millimeter of mercury = 0.001333 bar

Common mistakes in pressure conversion

  • Tire pressure is quoted in bar in Europe and psi in the US: 1 bar is about 14.5 psi. The recommended 2.5 bar equals about 36 psi, inflating to '25 psi' on the assumption they match leaves the tire dangerously underinflated. Multiply bar by 14.5 to get psi.
  • One atmosphere is not exactly one bar: 1 atm = 1.01325 bar = 101.325 kPa. There is also the technical atmosphere (1 kgf/cm²) at about 0.981 bar. The ~1% differences rarely matter day to day, but engineering and diving calculations need the right unit.
  • Blood pressure uses mmHg (120/80) and weather reports use hPa (around 1,013), different units that must not be mixed: 760 mmHg = 1,013.25 hPa. One mmHg is about 1.33 hPa.

Quick millimeter of mercury to/from bar conversion quiz

Score: 0

206 millimeter of mercury equals 0.412 bar.

Correct answer: 206 millimeter of mercury = 0.275 bar.

226 millimeter of mercury equals 0.181 bar.

Correct answer: 226 millimeter of mercury = 0.301 bar.

8.6 millimeter of mercury equals 0.0115 bar.

Correct answer: 8.6 millimeter of mercury = 0.0115 bar.

198 bar equals 1.49e+5 millimeter of mercury.

Correct answer: 198 bar = 1.49e+5 millimeter of mercury.

48 bar equals 7.2e+4 millimeter of mercury.

Correct answer: 48 bar = 3.6e+4 millimeter of mercury.

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