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Centimeters of water to Kilopascals Converter

1 cmH₂O = 0.0980665 kPa (centimeter of water → kilopascal)

1 cmH₂O = 0.0980665 kPa

1 centimeter of water equals 0.0980665 kilopascals. To convert centimeters of water to kilopascals, multiply the centimeter of water value by 0.0980665. For quick reference: 1 cmH₂O = 0.0980665 kPa, 5 cmH₂O = 0.490333 kPa, 10 cmH₂O = 0.980665 kPa, 100 cmH₂O = 9.80665 kPa.

How to convert centimeters of water to kilopascals

  1. Take your value

    Start with your value in centimeters of water.

  2. Multiply by 0.0980665

    Multiply the centimeter of water value by 0.0980665. This is the exact conversion factor from centimeters of water to kilopascals.

  3. Read the result

    The product is your value in kilopascals. For example, 5 cmH₂O × 0.0980665 = 0.490333 kPa.

Conversion formula

The exact factor from centimeters of water to kilopascals is 0.0980665.

Kilopascals = Centimeters of water × 0.0980665

Centimeters of water to Kilopascals conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from centimeters of water to kilopascals
Centimeters of water (cmH₂O)Kilopascals (kPa)
0.001 cmH₂O9.8067 × 10^−5 kPa
0.01 cmH₂O0.00098067 kPa
0.1 cmH₂O0.0098067 kPa
0.5 cmH₂O0.049033 kPa
1 cmH₂O0.098067 kPa
1.5 cmH₂O0.1471 kPa
2 cmH₂O0.19613 kPa
2.5 cmH₂O0.24517 kPa
3 cmH₂O0.2942 kPa
4 cmH₂O0.39227 kPa
5 cmH₂O0.49033 kPa
6 cmH₂O0.5884 kPa
7 cmH₂O0.68647 kPa
8 cmH₂O0.78453 kPa
9 cmH₂O0.8826 kPa
10 cmH₂O0.98067 kPa
14 cmH₂O1.3729 kPa
15 cmH₂O1.471 kPa
20 cmH₂O1.9613 kPa
25 cmH₂O2.4517 kPa
30 cmH₂O2.942 kPa
32 cmH₂O3.1381 kPa
35 cmH₂O3.4323 kPa
40 cmH₂O3.9227 kPa
50 cmH₂O4.9033 kPa
60 cmH₂O5.884 kPa
75 cmH₂O7.355 kPa
80 cmH₂O7.8453 kPa
100 cmH₂O9.8067 kPa
101.325 cmH₂O9.9366 kPa
150 cmH₂O14.71 kPa
200 cmH₂O19.613 kPa
250 cmH₂O24.517 kPa
300 cmH₂O29.42 kPa
400 cmH₂O39.227 kPa
500 cmH₂O49.033 kPa
760 cmH₂O74.531 kPa
1000 cmH₂O98.067 kPa
1013.25 cmH₂O99.366 kPa
2000 cmH₂O196.13 kPa
5000 cmH₂O490.33 kPa
10000 cmH₂O980.67 kPa
14.7 cmH₂O1.4416 kPa
50000 cmH₂O4903.3 kPa
100000 cmH₂O9806.7 kPa
101325 cmH₂O9936.6 kPa
200000 cmH₂O19613 kPa
500000 cmH₂O49033 kPa
1000000 cmH₂O98067 kPa
10000000 cmH₂O980665 kPa

Real-world reference

Mechanical ventilator settings are commonly expressed in cmH₂O. Central venous pressure is often measured in cmH₂O. In kilopascals, that gives you: 1 cmH₂O = 0.0980665 kPa, 10 cmH₂O = 0.980665 kPa, 100 cmH₂O = 9.80665 kPa.

Frequently asked questions

How many kilopascals are in 1 centimeter of water?
1 centimeter of water equals 0.0980665 kilopascals.
How do I convert centimeters of water to kilopascals?
Multiply the centimeter of water value by 0.0980665. So x cmH₂O × 0.0980665 = the equivalent in kPa.
What is 5 centimeters of water in kilopascals?
5 centimeters of water equals 0.490333 kilopascals.
What is 10 centimeters of water in kilopascals?
10 centimeters of water equals 0.980665 kilopascals.
What is 100 centimeters of water in kilopascals?
100 centimeters of water equals 9.80665 kilopascals.
How do I convert back from kilopascals to centimeters of water?
Multiply the kilopascal value by 10.1972. For example, 1 kPa = 10.1972 cmH₂O.
Is the centimeter of water bigger than the kilopascal?
No. 1 centimeter of water is smaller than 1 kilopascal. It takes 10.1972 centimeters of water to equal 1 kilopascal.
Are these conversion factors exact?
The factor is derived directly from the SI definitions of centimeter of water and kilopascal; the displayed value is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.

About the centimeter of water and the kilopascal

The centimeter of water

The centimeter of water (cmH₂O) equals 98.0665 Pa — the pressure exerted by a 1 cm column of water under standard gravity. It is the standard unit for respiratory and ventilator pressures in medicine, and for low-pressure gas and duct measurements in HVAC.

The kilopascal

The kilopascal (kPa) equals exactly 1,000 pascals. It is the standard pressure unit in modern meteorology, engineering specs outside the US, and most non-US tire-pressure recommendations.

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