Convert Square centimetres per hour to Square millimetres per minute
Convert Square centimetres per hour (cm²/h) to Square millimetres per minute (mm²/min) instantly and accurately.
Conversion Formula
mm²/min = cm²/h × 1.666666667
About Square centimetres per hour
The square centimetre per hour (cm²/h) equals 1/36 000 000 m²/s. Environmental geophysicists use cm²/h when measuring heat flow in sedimentary rock columns or permafrost layers. Granite has a diffusivity of ≈36 cm²/h; dry sand ≈9 cm²/h. 1 cm²/h = 1e-4/3600 m²/s ≈ 2.778 × 10⁻⁸ m²/s.
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.
Quick Reference Table
| Square centimetres per hour (cm²/h) | Square millimetres per minute (mm²/min) |
|---|---|
| 1 cm²/h | 1.66667 mm²/min |
| 2 cm²/h | 3.33333 mm²/min |
| 5 cm²/h | 8.33333 mm²/min |
| 10 cm²/h | 16.6667 mm²/min |
| 25 cm²/h | 41.6667 mm²/min |
| 50 cm²/h | 83.3333 mm²/min |
| 100 cm²/h | 166.667 mm²/min |