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Convert centimeter of water to millibar

Here you can quickly calculate how many millibar fit in one centimeter of water.
  • 1 cmH₂O = 0.980665 mbar
  • 1 mbar = 1.019716 cmH₂O

Centimeter of water to millibar conversion table

centimeter of water millibar
1 0.980665
2 1.96133
5 4.903325
10 9.80665
20 19.6133
50 49.03325
100 98.0665

Formula to convert centimeter of water to millibar

To convert centimeter of water to millibar, multiply by 0.980665.

1 cmH₂O = 0.980665 mbar
Example: 1 centimeter of water = 0.980665 millibar

Common mistakes in pressure conversion

  • 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.
  • Hectopascals and millibars are exactly the same size: 1 hPa = 1 mbar. A chart showing 1,013 mbar and one showing 1,013 hPa agree perfectly, no conversion needed. Meteorology simply renamed the unit.

Quick centimeter of water to/from millibar conversion quiz

Score: 0

56 millibar equals 48.5 centimeter of water.

Correct answer: 56 millibar = 57.1 centimeter of water.

18.8 centimeter of water equals 21.2 millibar.

Correct answer: 18.8 centimeter of water = 18.4 millibar.

15.4 centimeter of water equals 17.4 millibar.

Correct answer: 15.4 centimeter of water = 15.1 millibar.

9.8 centimeter of water equals 10.6 millibar.

Correct answer: 9.8 centimeter of water = 9.61 millibar.

235 millibar equals 240 centimeter of water.

Correct answer: 235 millibar = 240 centimeter of water.

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