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Convert hectopascal to centimeter of water

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

Hectopascal to centimeter of water conversion table

hectopascal centimeter of water
1 1.019716
2 2.039432
5 5.098581
10 10.197162
20 20.394324
50 50.985811
100 101.971621

Hectopascal to centimeter of water formula

To convert hectopascal to centimeter of water, multiply by 1.019716.

1 hPa = 1.019716 cmH₂O
Example: 1 hectopascal = 1.019716 centimeter of water

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 hectopascal and centimeter of water conversion quiz

Score: 0

7.1 hectopascal equals 7.24 centimeter of water.

Correct answer: 7.1 hectopascal = 7.24 centimeter of water.

13 centimeter of water equals 14.7 hectopascal.

Correct answer: 13 centimeter of water = 12.7 hectopascal.

5.3 hectopascal equals 5.94 centimeter of water.

Correct answer: 5.3 hectopascal = 5.4 centimeter of water.

17.6 hectopascal equals 17.9 centimeter of water.

Correct answer: 17.6 hectopascal = 17.9 centimeter of water.

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