Convert Square metres per minute to Square millimetres per hour
Convert Square metres per minute (m²/min) to Square millimetres per hour (mm²/h) instantly and accurately.
Conversion Formula
mm²/h = m²/min × 60000000
About Square metres per minute
The square metre per minute (m²/min) equals 1/60 m²/s ≈0.01667 m²/s, a non-standard unit seen in some process-engineering contexts where heat soak times are measured in minutes rather than seconds. Nuclear fuel rod thermal analysis and large refractory furnace lining design occasionally cite diffusivity in m²/min. 1 m²/min = 1/60 m²/s ≈ 6000 cm²/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 metres per minute (m²/min) | Square millimetres per hour (mm²/h) |
|---|---|
| 1 m²/min | 60000000 mm²/h |
| 2 m²/min | 120000000 mm²/h |
| 5 m²/min | 300000000 mm²/h |
| 10 m²/min | 600000000 mm²/h |
| 25 m²/min | 1.5 × 109 mm²/h |
| 50 m²/min | 3 × 109 mm²/h |
| 100 m²/min | 6 × 109 mm²/h |