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.
1 kPa = 10.1972 cmH₂O (kilopascal → centimeter of water)
1 kPa = 10.1972 cmH₂O
1 kilopascal equals 10.1972 centimeters of water. To convert kilopascals to centimeters of water, multiply the kilopascal value by 10.1972. For quick reference: 1 kPa = 10.1972 cmH₂O, 5 kPa = 50.9858 cmH₂O, 10 kPa = 101.972 cmH₂O, 100 kPa = 1019.72 cmH₂O.
Centimeters of water = Kilopascals × 10.1972Start with your value in kilopascals.
Multiply the kilopascal value by 10.1972. This is the exact conversion factor from kilopascals to centimeters of water.
The product is your value in centimeters of water. For example, 5 kPa × 10.1972 = 50.9858 cmH₂O.
The exact factor from kilopascals to centimeters of water is 10.1972.
Centimeters of water = Kilopascals × 10.1972
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Kilopascals (kPa) | Centimeters of water (cmH₂O) |
|---|---|
| 0.001 kPa | 0.010197 cmH₂O |
| 0.01 kPa | 0.10197 cmH₂O |
| 0.1 kPa | 1.0197 cmH₂O |
| 0.5 kPa | 5.0986 cmH₂O |
| 1 kPa | 10.197 cmH₂O |
| 1.5 kPa | 15.296 cmH₂O |
| 2 kPa | 20.394 cmH₂O |
| 2.5 kPa | 25.493 cmH₂O |
| 3 kPa | 30.591 cmH₂O |
| 4 kPa | 40.789 cmH₂O |
| 5 kPa | 50.986 cmH₂O |
| 6 kPa | 61.183 cmH₂O |
| 7 kPa | 71.38 cmH₂O |
| 8 kPa | 81.577 cmH₂O |
| 9 kPa | 91.774 cmH₂O |
| 10 kPa | 101.97 cmH₂O |
| 14 kPa | 142.76 cmH₂O |
| 15 kPa | 152.96 cmH₂O |
| 20 kPa | 203.94 cmH₂O |
| 25 kPa | 254.93 cmH₂O |
| 30 kPa | 305.91 cmH₂O |
| 32 kPa | 326.31 cmH₂O |
| 35 kPa | 356.9 cmH₂O |
| 40 kPa | 407.89 cmH₂O |
| 50 kPa | 509.86 cmH₂O |
| 60 kPa | 611.83 cmH₂O |
| 75 kPa | 764.79 cmH₂O |
| 80 kPa | 815.77 cmH₂O |
| 100 kPa | 1019.7 cmH₂O |
| 101.325 kPa | 1033.2 cmH₂O |
| 150 kPa | 1529.6 cmH₂O |
| 200 kPa | 2039.4 cmH₂O |
| 250 kPa | 2549.3 cmH₂O |
| 300 kPa | 3059.1 cmH₂O |
| 400 kPa | 4078.9 cmH₂O |
| 500 kPa | 5098.6 cmH₂O |
| 760 kPa | 7749.8 cmH₂O |
| 1000 kPa | 10197 cmH₂O |
| 1013.25 kPa | 10332 cmH₂O |
| 2000 kPa | 20394 cmH₂O |
| 5000 kPa | 50986 cmH₂O |
| 10000 kPa | 101972 cmH₂O |
| 14.7 kPa | 149.9 cmH₂O |
| 50000 kPa | 509858 cmH₂O |
| 100000 kPa | 1019716 cmH₂O |
| 101325 kPa | 1033227 cmH₂O |
| 200000 kPa | 2039432 cmH₂O |
| 500000 kPa | 5098581 cmH₂O |
| 1000000 kPa | 10197162 cmH₂O |
| 10000000 kPa | 101971621 cmH₂O |
Tire pressure for most passenger cars is around 220 kPa. Standard atmospheric pressure is 101.325 kPa. In centimeters of water, that gives you: 1 kPa = 10.1972 cmH₂O, 10 kPa = 101.972 cmH₂O, 100 kPa = 1019.72 cmH₂O.
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.
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.
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