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Convert centimeter of water to millibar

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

Example: centimeter of water to millibar

  • 1 centimeter of water = 0.980665 millibar

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

Centimeter of water to millibar formula

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 pressure conversion mistakes

  • 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 and millibar conversion quiz

Score: 0

22.2 centimeter of water equals 18.5 millibar.

Correct answer: 22.2 centimeter of water = 21.8 millibar.

99 centimeter of water equals 87.4 millibar.

Correct answer: 99 centimeter of water = 97.1 millibar.

4.1 centimeter of water equals 3.42 millibar.

Correct answer: 4.1 centimeter of water = 4.02 millibar.

246 millibar equals 213 centimeter of water.

Correct answer: 246 millibar = 251 centimeter of water.

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