Convert Inches of Water (60 °F) to Inches of Water
1 inch of water (60 °F) (inH₂O (60 °F)) equals 0.9990007183 inches of water (inH₂O).
1 inH₂O (60 °F) = 0.9990007183 inH₂O
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk inch of water (60 °F) to inch of water converter to paste a column from Excel.
How to Convert Inch of Water (60 °F) to Inch of Water
- 1 inH₂O (60 °F) = 0.9990007183 inH₂O
- 1 inH₂O = 1.001000281 inH₂O (60 °F)
- Example: convert 15 inH₂O (60 °F) to inH₂O: 15 inH₂O (60 °F) = 15 × 0.9990007183 inH₂O = 14.98501077 inH₂O
Reference conditions. inH₂O (60 °F): Water at 60 °F (15.6 °C), density ≈ 999.0 kg/m³, standard gravity. NIST value, 5 significant figures. inH₂O: Conventional water column: ρ = 1000 kg/m³ and gₙ = 9.80665 m/s² (≈ water at 4 °C).
Formula
inH₂O = inH₂O (60 °F) × 0.9990007182576
or inH₂O = inH₂O (60 °F) ÷ 1.001000281305
Derivation from SI units:
- 1 inH₂O (60 °F) ≈ 999.0 kg/m³ × 9.80665 m/s² × 0.0254 m ≈ 248.84 Pa
- 1 inH₂O = 1000 kg/m³ × 9.80665 m/s² × 0.0254 m = 249.08891 Pa
- 1 inH₂O (60 °F) = 248.84 Pa ÷ 249.08891 Pa per inH₂O = 0.9990007182576 inH₂O
One unit is a measured value, so the factor is approximate. Inch of Water (60 °F) definition: inch of water (60 °F); Inch of Water definition: inch of water.
Worked examples
- 1 inH₂O (60 °F) equals 0.9990007183 inH₂O.
1 inH₂O (60 °F) × 0.9990007183 = 0.9990007183 inH₂O - An orifice differential of 100 inH₂O (60 °F) is 99.90007183 inH₂O.
100 inH₂O (60 °F) × 0.9990007183 = 99.90007183 inH₂O
Inch of Water (60 °F) to Inch of Water conversion table
| Inches of Water (60 °F) (inH₂O (60 °F)) | Inches of Water (inH₂O) |
|---|---|
| 0.01 inH₂O (60 °F) | 0.009990007183 inH₂O |
| 0.05 inH₂O (60 °F) | 0.04995003591 inH₂O |
| 0.1 inH₂O (60 °F) | 0.09990007183 inH₂O |
| 0.25 inH₂O (60 °F) | 0.2497501796 inH₂O |
| 0.5 inH₂O (60 °F) | 0.4995003591 inH₂O |
| 1 inH₂O (60 °F) | 0.9990007183 inH₂O |
| 2 inH₂O (60 °F) | 1.998001437 inH₂O |
| 3 inH₂O (60 °F) | 2.997002155 inH₂O |
| 5 inH₂O (60 °F) | 4.995003591 inH₂O |
| 7 inH₂O (60 °F) | 6.993005028 inH₂O |
| 10 inH₂O (60 °F) | 9.990007183 inH₂O |
| 14 inH₂O (60 °F) | 13.98601006 inH₂O |
| 20 inH₂O (60 °F) | 19.98001437 inH₂O |
| 27.7 inH₂O (60 °F) | 27.6723199 inH₂O |
Where it's used
Older gas-flow measurement documents use water at 60 °F; converting to conventional inches of water aligns their numbers with modern transmitters.
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
Why is the 60 °F inch of water smaller?
Water at 60 °F is less dense (≈ 999.0 kg/m³) than the conventional 1000 kg/m³, so a 1 inch column exerts slightly less pressure.
How many inches of water are in 1 inch of water (60 °F)?
1 inH₂O (60 °F) = 0.9990007183 inH₂O.
How do I convert inches of water (60 °F) to inches of water?
Multiply the value in inH₂O (60 °F) by 0.9990007183, or divide it by 1.001000281. For example, 15 inH₂O (60 °F) × 0.9990007183 = 14.98501077 inH₂O.
Is the inH₂O (60 °F) to inH₂O 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)".
- 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, conventional (inH2O)".
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 Inches of Water. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/inch-of-water-60f-to-inch-of-water/
IEEE
Scientific Converters, "Convert Inches of Water (60 °F) to Inches of Water," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/inch-of-water-60f-to-inch-of-water/