Convert Square millimetres per minute to Square millimetres per hour
Convert Square millimetres per minute (mm²/min) to Square millimetres per hour (mm²/h) instantly and accurately.
Conversion Formula
mm²/h = mm²/min × 60
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 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.
Quick Reference Table
| Square millimetres per minute (mm²/min) | Square millimetres per hour (mm²/h) |
|---|---|
| 1 mm²/min | 60 mm²/h |
| 2 mm²/min | 120 mm²/h |
| 5 mm²/min | 300 mm²/h |
| 10 mm²/min | 600 mm²/h |
| 25 mm²/min | 1500 mm²/h |
| 50 mm²/min | 3000 mm²/h |
| 100 mm²/min | 6000 mm²/h |