Convert Square millimetres per hour to Square inches per hour
Convert Square millimetres per hour (mm²/h) to Square inches per hour (in²/h) instantly and accurately.
Conversion Formula
in²/h = mm²/h × 0.0015500031
About Square millimetres per hour
The square millimetre per hour (mm²/h) equals 1/(3.6 × 10⁹) m²/s ≈ 2.78 × 10⁻¹⁰ m²/s. It appears in materials science for solid-state diffusion and thin-film growth studies where hourly timescales are more natural than seconds. 1 mm²/h = 1/3600 mm²/s = 1/3600 cSt.
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.
Quick Reference Table
| Square millimetres per hour (mm²/h) | Square inches per hour (in²/h) |
|---|---|
| 1 mm²/h | 0.00155 in²/h |
| 2 mm²/h | 0.00310001 in²/h |
| 5 mm²/h | 0.00775002 in²/h |
| 10 mm²/h | 0.0155 in²/h |
| 25 mm²/h | 0.0387501 in²/h |
| 50 mm²/h | 0.0775002 in²/h |
| 100 mm²/h | 0.155 in²/h |