Convert Square millimetres per minute to Square inches per hour
Convert Square millimetres per minute (mm²/min) to Square inches per hour (in²/h) instantly and accurately.
Conversion Formula
in²/h = mm²/min × 0.093000186
About Square millimetres per minute
The square millimetre per minute (mm²/min) equals 1/60 000 000 m²/s. It appears in material testing standards where thermal diffusivity of polymers and composites is measured over minute-scale heating pulses. ASTM and ISO laser-flash methods sometimes report in mm²/min as an intermediate step. 1 mm²/min = 1e-6/60 m²/s ≈ 1.667 × 10⁻¸ m²/s.
About Square inches per hour
The square inch per hour (in²/h) equals ≈1.792 × 10⁻⁷ m²/s, used in US heat-transfer handbooks and HVAC insulation specifications. Pre-SI tables for building insulation board and refractory brick often list thermal diffusivity in in²/h. Firebrick: ≈3.5 in²/h; rigid foam: ≈0.8-1.2 in²/h. 1 in²/h = 0.00064516/3600 m²/s.
Quick Reference Table
| Square millimetres per minute (mm²/min) | Square inches per hour (in²/h) |
|---|---|
| 1 mm²/min | 0.0930002 in²/h |
| 2 mm²/min | 0.186 in²/h |
| 5 mm²/min | 0.465001 in²/h |
| 10 mm²/min | 0.930002 in²/h |
| 25 mm²/min | 2.325 in²/h |
| 50 mm²/min | 4.65001 in²/h |
| 100 mm²/min | 9.30002 in²/h |