Convert Newtons per Square Millimetre to inH₂O (60 °F)
1 newton per square millimetre (N/mm²) = 4018.64652 inches of water (60 °F) (inH₂O (60 °F)). 1 inH₂O (60 °F) = 0.00024884 N/mm². Example: 15 N/mm² = 15 × 4018.64652 = 60279.6978 inH₂O (60 °F).
Also searched as newtons per square millimetre to inch of water (60 °F), newtons per square millimetre in inch of water (60 °F), newtons per square millimetre into inches of water (60 °F), N/mm2 to inch of water (60 °F), N/mm2 in inches of water (60 °F), N/mm2 into inch of water (60 °F), newton per square millimetre to inch of water (60 °F), N/mm2 to inches of water (60 °F) converter, newtons per square millimeter to inches of water (60 °F) and how many inches of water (60 °F) in a newton per square millimetre.
1 N/mm² = 4018.64652 inH₂O (60 °F)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk newton per square millimetre to inch of water (60 °F) converter to paste a column from Excel.
How to Convert Newton per Square Millimetre to Inch of Water (60 °F)
- 1 N/mm² = 4018.64652 inH₂O (60 °F)
- 1 inH₂O (60 °F) = 0.00024884 N/mm²
- Example: convert 15 N/mm² to inH₂O (60 °F): 15 N/mm² = 15 × 4018.64652 inH₂O (60 °F) = 60279.6978 inH₂O (60 °F)
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
inH₂O (60 °F) = N/mm² × 4018.646519852
Derivation from SI units:
- 1 N/mm² = 1 N ÷ 10⁻⁶ m² = 10⁶ Pa = 1 MPa
- 1 inH₂O (60 °F) ≈ 999.0 kg/m³ × 9.80665 m/s² × 0.0254 m ≈ 248.84 Pa
- 1 N/mm² = 1000000 Pa ÷ 248.84 Pa per inH₂O (60 °F) = 4018.646519852 inH₂O (60 °F)
One unit is a measured value, so the factor is approximate. Newton per Square Millimetre definition: newton per square millimetre; Inch of Water (60 °F) definition: inch of water (60 °F).
Worked examples
- A reading of 30 N/mm² converts to 120559.3956 inH₂O (60 °F).
30 N/mm² × 4018.64652 = 120559.3956 inH₂O (60 °F) - A value of 275 N/mm² is 1105127.793 inH₂O (60 °F).
275 N/mm² × 4018.64652 = 1105127.793 inH₂O (60 °F)
Newton per Square Millimetre to Inch of Water (60 °F) conversion table
| Newtons per Square Millimetre (N/mm²) | Inches of Water (60 °F) (inH₂O (60 °F)) |
|---|---|
| 1 N/mm² | 4018.64652 inH₂O (60 °F) |
| 10 N/mm² | 40186.4652 inH₂O (60 °F) |
| 20 N/mm² | 80372.9304 inH₂O (60 °F) |
| 25 N/mm² | 100466.163 inH₂O (60 °F) |
| 30 N/mm² | 120559.3956 inH₂O (60 °F) |
| 40 N/mm² | 160745.8608 inH₂O (60 °F) |
| 100 N/mm² | 401864.652 inH₂O (60 °F) |
| 235 N/mm² | 944381.9322 inH₂O (60 °F) |
| 275 N/mm² | 1105127.793 inH₂O (60 °F) |
| 355 N/mm² | 1426619.515 inH₂O (60 °F) |
| 400 N/mm² | 1607458.608 inH₂O (60 °F) |
| 500 N/mm² | 2009323.26 inH₂O (60 °F) |
| 1000 N/mm² | 4018646.52 inH₂O (60 °F) |
Where it's used
Newtons per Square Millimetre are used for steel yield and tensile strength (S355: 355 N/mm²), while inches of water (60 °F) appear in older US gas-industry and flow-meter references. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Newton per Square Millimetre to other pressure units
| Conversion | 1 N/mm² equals |
|---|---|
| newton per square millimetre to inch of water (60 °F) | 4018.64652 inH₂O (60 °F) |
| newton per square millimetre to pascal | 1000000 Pa |
| newton per square millimetre to kilopascal | 1000 kPa |
| newton per square millimetre to ksi | 0.1450377377 ksi |
| newton per square millimetre to kilogram-force per square centimetre | 10.19716213 kgf/cm² |
| newton per square millimetre to psi | 145.0377377 psi |
| newton per square millimetre to bar | 10 bar |
| newton per square millimetre to millimeter of mercury | 7500.615758 mmHg |
Show 12 more units
| newton per square millimetre to inch of water | 4014.63076 inH₂O |
|---|---|
| newton per square millimetre to atmosphere | 9.869232667 atm |
| newton per square millimetre to megapascal | 1 MPa |
| newton per square millimetre to gigapascal | 0.001 GPa |
| newton per square millimetre to kilogram-force per square millimetre | 0.1019716213 kgf/mm² |
| newton per square millimetre to millibar | 10000 mbar |
| newton per square millimetre to torr | 7500.616827 Torr |
| newton per square millimetre to millimeter of water | 101971.6213 mmH₂O |
| newton per square millimetre to centimeter of water | 10197.16213 cmH₂O |
| newton per square millimetre to inch of mercury | 295.299833 inHg |
| newton per square millimetre to decibar | 100 dbar |
| newton per square millimetre to barye | 10000000 Ba |
Frequently asked questions
How many inches of water (60 °F) are in 1 newton per square millimetre?
1 N/mm² = 4018.64652 inH₂O (60 °F).
How do I convert newtons per square millimetre to inches of water (60 °F)?
Multiply the value in N/mm² by 4018.64652. For example, 15 N/mm² × 4018.64652 = 60279.6978 inH₂O (60 °F).
Is the N/mm² to inH₂O (60 °F) 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
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
- 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)".
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 Newtons per Square Millimetre to inH₂O (60 °F). Retrieved October 25, 2026, from https://scientificconverters.com/pressure/newton-per-square-millimeter-to-inch-of-water-60f/
IEEE
Scientific Converters, "Convert Newtons per Square Millimetre to inH₂O (60 °F)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/pressure/newton-per-square-millimeter-to-inch-of-water-60f/