Convert Kilopascals to Centimeters of Water
1 kilopascal (kPa) equals 10.19716213 centimeters of water (cmH₂O).
1 kPa = 10.19716213 cmH₂O
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilopascal to centimeter of water converter to paste a column from Excel.
How to Convert Kilopascal to Centimeter of Water
- 1 kPa = 10.19716213 cmH₂O
- 1 cmH₂O = 0.0980665 kPa
- Example: convert 15 kPa to cmH₂O: 15 kPa = 15 × 10.19716213 cmH₂O = 152.9574319 cmH₂O
Reference conditions. cmH₂O: Conventional water column: ρ = 1000 kg/m³ and gₙ = 9.80665 m/s² (≈ water at 4 °C).
Formula
cmH₂O = kPa × 10.19716212978
Derivation from SI units:
- 1 kPa = 10³ Pa
- 1 cmH₂O = 1000 kg/m³ × 9.80665 m/s² × 0.01 m = 98.0665 Pa
- 1 kPa = 1000 Pa ÷ 98.0665 Pa per cmH₂O = 10.19716212978 cmH₂O
Both units are defined exactly, so the factor is exact. Kilopascal definition: kilopascal; Centimeter of Water definition: centimeter of water.
Worked examples
- 1 kPa is 10.19716213 cmH₂O.
1 kPa × 10.19716213 = 10.19716213 cmH₂O - An airway pressure of 2 kPa is 20.39432426 cmH₂O.
2 kPa × 10.19716213 = 20.39432426 cmH₂O
Kilopascal to Centimeter of Water conversion table
| Kilopascals (kPa) | Centimeters of Water (cmH₂O) |
|---|---|
| 0.1 kPa | 1.019716213 cmH₂O |
| 0.25 kPa | 2.549290532 cmH₂O |
| 0.5 kPa | 5.098581065 cmH₂O |
| 1 kPa | 10.19716213 cmH₂O |
| 2 kPa | 20.39432426 cmH₂O |
| 2.5 kPa | 25.49290532 cmH₂O |
| 5 kPa | 50.98581065 cmH₂O |
| 10 kPa | 101.9716213 cmH₂O |
| 20 kPa | 203.9432426 cmH₂O |
| 50 kPa | 509.8581065 cmH₂O |
| 100 kPa | 1019.716213 cmH₂O |
| 101.325 kPa | 1033.227453 cmH₂O |
| 150 kPa | 1529.574319 cmH₂O |
| 200 kPa | 2039.432426 cmH₂O |
| 220 kPa | 2243.375669 cmH₂O |
| 250 kPa | 2549.290532 cmH₂O |
| 300 kPa | 3059.148639 cmH₂O |
| 350 kPa | 3569.006745 cmH₂O |
| 400 kPa | 4078.864852 cmH₂O |
| 500 kPa | 5098.581065 cmH₂O |
| 600 kPa | 6118.297278 cmH₂O |
| 700 kPa | 7138.013491 cmH₂O |
| 800 kPa | 8157.729704 cmH₂O |
| 1000 kPa | 10197.16213 cmH₂O |
| 2000 kPa | 20394.32426 cmH₂O |
Where it's used
Pressures measured with SI transducers in kPa are converted to cmH₂O for clinicians and respiratory therapists.
Kilopascal to other pressure units
| Conversion | 1 kPa equals |
|---|---|
| kilopascal to pascal | 1000 Pa |
| kilopascal to megapascal | 0.001 MPa |
| kilopascal to psi | 0.1450377377 psi |
| kilopascal to bar | 0.01 bar |
| kilopascal to millibar | 10 mbar |
| kilopascal to decibar | 0.1 dbar |
| kilopascal to torr | 7.500616827 Torr |
| kilopascal to millimeter of mercury | 7.500615758 mmHg |
| kilopascal to millimeter of water | 101.9716213 mmH₂O |
| kilopascal to centimeter of water | 10.19716213 cmH₂O |
| kilopascal to inch of water | 4.01463076 inH₂O |
| kilopascal to inch of water (60 °F) | 4.01864652 inH₂O (60 °F) |
| kilopascal to inch of mercury | 0.295299833 inHg |
| kilopascal to atmosphere | 0.009869232667 atm |
| kilopascal to barye | 10000 Ba |
Frequently asked questions
How many cmH₂O are in 1 kPa?
1 kPa = 10.19716213 cmH₂O, roughly 10 cmH₂O.
How many centimeters of water are in 1 kilopascal?
1 kPa = 10.19716213 cmH₂O.
How do I convert kilopascals to centimeters of water?
Multiply the value in kPa by 10.19716213. For example, 15 kPa × 10.19716213 = 152.9574319 cmH₂O.
Is the kPa to cmH₂O conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "centimeter of water, conventional (cmH2O)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilopascals to Centimeters of Water. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/kilopascal-to-centimeter-of-water/
IEEE
Scientific Converters, "Convert Kilopascals to Centimeters of Water," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/kilopascal-to-centimeter-of-water/