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Convert millimeter of mercury to centimeter of water

Here you can quickly calculate how many centimeter of water fit in one millimeter of mercury.
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  • 1 mmHg = 1.35951 cmH₂O
  • 1 cmH₂O = 0.735559 mmHg

Example: millimeter of mercury to centimeter of water

  • 1 millimeter of mercury = 1.35951 centimeter of water

Millimeter of mercury to centimeter of water conversion table

millimeter of mercury centimeter of water
1 1.35951
2 2.71902
5 6.79755
10 13.5951
20 27.1902
50 67.9755
100 135.951

Millimeter of mercury to centimeter of water formula

To convert millimeter of mercury to centimeter of water, multiply by 1.35951.

1 mmHg = 1.35951 cmH₂O
Example: 1 millimeter of mercury = 1.35951 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.

Quick millimeter of mercury and centimeter of water conversion quiz

Score: 0

20.4 centimeter of water equals 15 millimeter of mercury.

Correct answer: 20.4 centimeter of water = 15 millimeter of mercury.

2.8 centimeter of water equals 2.27 millimeter of mercury.

Correct answer: 2.8 centimeter of water = 2.06 millimeter of mercury.

24.8 millimeter of mercury equals 33.7 centimeter of water.

Correct answer: 24.8 millimeter of mercury = 33.7 centimeter of water.

146 millimeter of mercury equals 228 centimeter of water.

Correct answer: 146 millimeter of mercury = 198 centimeter of water.

4.8 centimeter of water equals 3.53 millimeter of mercury.

Correct answer: 4.8 centimeter of water = 3.53 millimeter of mercury.

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