Convert Square inches per hour to Square metres per second
Convert Square inches per hour (in²/h) to Square metres per second (m²/s) instantly and accurately.
Conversion Formula
m²/s = in²/h × 1.792111111e-7
About Square inches per hour
The square inch per hour (in²/h) equals 0.0254²/3600 ≈ 1.792 × 10⁻⁷ m²/s. It is found in US heat-transfer and diffusion textbooks that use the BTU-inch-hour unit system alongside thermal diffusivity tables. 1 in²/h ≈ 0.1792 cSt.
About Square metres per second
The square metre per second (m²/s) is the SI coherent unit of kinematic viscosity (ν = μ/ρ). Air at 20 °C ≈ 1.516 × 10⁻⁵ m²/s; water at 20 °C ≈ 1.004 × 10⁻⁶ m²/s; glycerol ≈ 1.19 × 10⁻³ m²/s. It is the standard in CFD codes and SI research literature. 1 m²/s = 10⁴ St = 10⁶ cSt.
Quick Reference Table
| Square inches per hour (in²/h) | Square metres per second (m²/s) |
|---|---|
| 1 in²/h | 1.792 × 10-7 m²/s |
| 2 in²/h | 3.584 × 10-7 m²/s |
| 5 in²/h | 8.961 × 10-7 m²/s |
| 10 in²/h | 1.792 × 10-6 m²/s |
| 25 in²/h | 4.48 × 10-6 m²/s |
| 50 in²/h | 8.961 × 10-6 m²/s |
| 100 in²/h | 1.792 × 10-5 m²/s |