Convert Inches of Water (60 °F) to Kilopascals
1 inch of water (60 °F) (inH₂O (60 °F)) equals 0.24884 kilopascals (kPa).
1 inH₂O (60 °F) = 0.24884 kPa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk inch of water (60 °F) to kilopascal converter to paste a column from Excel.
How to Convert Inch of Water (60 °F) to Kilopascal
- 1 inH₂O (60 °F) = 0.24884 kPa
- 1 kPa = 4.01864652 inH₂O (60 °F)
- Example: convert 15 inH₂O (60 °F) to kPa: 15 inH₂O (60 °F) = 15 × 0.24884 kPa = 3.7326 kPa
Reference conditions. inH₂O (60 °F): Water at 60 °F (15.6 °C), density ≈ 999.0 kg/m³, standard gravity. NIST value, 5 significant figures.
Formula
kPa = inH₂O (60 °F) × 0.24884
or kPa = inH₂O (60 °F) ÷ 4.018646519852
Derivation from SI units:
- 1 inH₂O (60 °F) ≈ 999.0 kg/m³ × 9.80665 m/s² × 0.0254 m ≈ 248.84 Pa
- 1 kPa = 10³ Pa
- 1 inH₂O (60 °F) = 248.84 Pa ÷ 1000 Pa per kPa = 0.24884 kPa
One unit is a measured value, so the factor is approximate. Inch of Water (60 °F) definition: inch of water (60 °F); Kilopascal definition: kilopascal.
Worked examples
- A reading of 0.5 inH₂O (60 °F) converts to 0.12442 kPa.
0.5 inH₂O (60 °F) × 0.24884 = 0.12442 kPa - A value of 7 inH₂O (60 °F) is 1.74188 kPa.
7 inH₂O (60 °F) × 0.24884 = 1.74188 kPa
Inch of Water (60 °F) to Kilopascal conversion table
| Inches of Water (60 °F) (inH₂O (60 °F)) | Kilopascals (kPa) |
|---|---|
| 0.01 inH₂O (60 °F) | 0.0024884 kPa |
| 0.05 inH₂O (60 °F) | 0.012442 kPa |
| 0.1 inH₂O (60 °F) | 0.024884 kPa |
| 0.25 inH₂O (60 °F) | 0.06221 kPa |
| 0.5 inH₂O (60 °F) | 0.12442 kPa |
| 1 inH₂O (60 °F) | 0.24884 kPa |
| 2 inH₂O (60 °F) | 0.49768 kPa |
| 3 inH₂O (60 °F) | 0.74652 kPa |
| 5 inH₂O (60 °F) | 1.2442 kPa |
| 7 inH₂O (60 °F) | 1.74188 kPa |
| 10 inH₂O (60 °F) | 2.4884 kPa |
| 14 inH₂O (60 °F) | 3.48376 kPa |
| 20 inH₂O (60 °F) | 4.9768 kPa |
| 27.7 inH₂O (60 °F) | 6.892868 kPa |
Where it's used
Inches of Water (60 °F) are used for older US gas-industry and flow-meter references, while kilopascals appear in tyre pressure outside the United States (about 200–250 kPa for cars). Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Inch of Water (60 °F) to other pressure units
| Conversion | 1 inH₂O (60 °F) equals |
|---|---|
| inch of water (60 °F) to pascal | 248.84 Pa |
| inch of water (60 °F) to kilopascal | 0.24884 kPa |
| inch of water (60 °F) to megapascal | 0.00024884 MPa |
| inch of water (60 °F) to psi | 0.03609119066 psi |
| inch of water (60 °F) to bar | 0.0024884 bar |
| inch of water (60 °F) to millibar | 2.4884 mbar |
| inch of water (60 °F) to decibar | 0.024884 dbar |
| inch of water (60 °F) to torr | 1.866453491 Torr |
| inch of water (60 °F) to millimeter of mercury | 1.866453225 mmHg |
| inch of water (60 °F) to millimeter of water | 25.37461824 mmH₂O |
| inch of water (60 °F) to centimeter of water | 2.537461824 cmH₂O |
| inch of water (60 °F) to inch of water | 0.9990007183 inH₂O |
| inch of water (60 °F) to inch of mercury | 0.07348241045 inHg |
| inch of water (60 °F) to atmosphere | 0.002455859857 atm |
| inch of water (60 °F) to barye | 2488.4 Ba |
Frequently asked questions
How many kilopascals are in 1 inch of water (60 °F)?
1 inH₂O (60 °F) = 0.24884 kPa.
How do I convert inches of water (60 °F) to kilopascals?
Multiply the value in inH₂O (60 °F) by 0.24884, or divide it by 4.01864652. For example, 15 inH₂O (60 °F) × 0.24884 = 3.7326 kPa.
Is the inH₂O (60 °F) to kPa conversion exact?
Not exactly. The inch of water (60 °F) is a measured value (Water at 60 °F (15.6 °C), density ≈ 999.0 kg/m³, standard gravity. NIST value, 5 significant figures.). Results are good to about 5 significant figures.
Sources
- 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, "inch of water (60 °F)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
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 Inches of Water (60 °F) to Kilopascals. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/inch-of-water-60f-to-kilopascal/
IEEE
Scientific Converters, "Convert Inches of Water (60 °F) to Kilopascals," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/inch-of-water-60f-to-kilopascal/