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Convert centimeter of water to bar

Here you can quickly calculate how many bar fit in one centimeter of water.
  • 1 cmH₂O = 0.000981 bar
  • 1 bar = 1019.716213 cmH₂O

Centimeter of water to bar conversion table

centimeter of water bar
1 0.000981
2 0.001961
5 0.004903
10 0.009807
20 0.019613
50 0.049033
100 0.098067

Formula to convert centimeter of water to bar

To convert centimeter of water to bar, multiply by 0.000981.

1 cmH₂O = 0.000981 bar
Example: 1 centimeter of water = 0.000981 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.

Quick centimeter of water to/from bar conversion quiz

Score: 0

25 centimeter of water equals 0.0245 bar.

Correct answer: 25 centimeter of water = 0.0245 bar.

100 bar equals 1.02e+5 centimeter of water.

Correct answer: 100 bar = 1.02e+5 centimeter of water.

25 bar equals 1.27e+5 centimeter of water.

Correct answer: 25 bar = 2.55e+4 centimeter of water.

10 bar equals 1.02e+3 centimeter of water.

Correct answer: 10 bar = 1.02e+4 centimeter of water.

10 bar equals 1.02e+4 centimeter of water.

Correct answer: 10 bar = 1.02e+4 centimeter of water.

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