Convert Square decimetres per second to Square millimetres per hour
Convert Square decimetres per second (dm²/s) to Square millimetres per hour (mm²/h) instantly and accurately.
Conversion Formula
mm²/h = dm²/s × 36000000
About Square decimetres per second
The square decimetre per second (dm²/s) equals exactly 0.01 m²/s, a rarely used but exact-ratio metric unit. It is occasionally encountered in European academic papers on molten metals and liquid semiconductors, where diffusivity values in m²/s are small fractions and dm²/s gives more convenient numeric magnitudes. 1 dm²/s = 1e-2 m²/s = 100 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 decimetres per second (dm²/s) | Square millimetres per hour (mm²/h) |
|---|---|
| 1 dm²/s | 36000000 mm²/h |
| 2 dm²/s | 72000000 mm²/h |
| 5 dm²/s | 180000000 mm²/h |
| 10 dm²/s | 360000000 mm²/h |
| 25 dm²/s | 900000000 mm²/h |
| 50 dm²/s | 1.8 × 109 mm²/h |
| 100 dm²/s | 3.6 × 109 mm²/h |