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Convert bar to megapascal

Here you can quickly calculate how many megapascal fit in one bar.
  • 1 bar = 0.1 MPa
  • 1 MPa = 10 bar

Bar to megapascal conversion table

bar megapascal
1 0.1
2 0.2
5 0.5
10 1
20 2
50 5
100 10

Formula to convert bar to megapascal

To convert bar to megapascal, multiply by 0.1.

1 bar = 0.1 MPa
Example: 1 bar = 0.1 megapascal

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.

Quick bar to/from megapascal conversion quiz

Score: 0

20.5 bar equals 2.05 megapascal.

Correct answer: 20.5 bar = 2.05 megapascal.

75 bar equals 8.62 megapascal.

Correct answer: 75 bar = 7.5 megapascal.

15.3 bar equals 1.53 megapascal.

Correct answer: 15.3 bar = 1.53 megapascal.

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