Convert Square millimetres per hour to Square millimetres per minute
Convert Square millimetres per hour (mm²/h) to Square millimetres per minute (mm²/min) instantly and accurately.
Conversion Formula
mm²/min = mm²/h × 0.01666666667
About Square millimetres per hour
The square millimetre per hour (mm²/h) equals 1/3 600 000 000 m²/s, the smallest practical thermal diffusivity unit. It is used in very slow heat-transfer processes such as diffusion through frozen soils or phase-change materials studied over many hours. Heavy clay soils can show diffusivity values of 1-2 mm²/h. 1 mm²/h = 1e-6/3600 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 millimetres per hour (mm²/h) | Square millimetres per minute (mm²/min) |
|---|---|
| 1 mm²/h | 0.0166667 mm²/min |
| 2 mm²/h | 0.0333333 mm²/min |
| 5 mm²/h | 0.0833333 mm²/min |
| 10 mm²/h | 0.166667 mm²/min |
| 25 mm²/h | 0.416667 mm²/min |
| 50 mm²/h | 0.833333 mm²/min |
| 100 mm²/h | 1.66667 mm²/min |