Convert Square inches per hour to Square decimetres per second
Convert Square inches per hour (in²/h) to Square decimetres per second (dm²/s) instantly and accurately.
Conversion Formula
dm²/s = in²/h × 1.792111111e-5
About Square inches per hour
The square inch per hour (in²/h) equals ≈1.792 × 10⁻⁷ m²/s, used in US heat-transfer handbooks and HVAC insulation specifications. Pre-SI tables for building insulation board and refractory brick often list thermal diffusivity in in²/h. Firebrick: ≈3.5 in²/h; rigid foam: ≈0.8-1.2 in²/h. 1 in²/h = 0.00064516/3600 m²/s.
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.
Quick Reference Table
| Square inches per hour (in²/h) | Square decimetres per second (dm²/s) |
|---|---|
| 1 in²/h | 1.792 × 10-5 dm²/s |
| 2 in²/h | 3.584 × 10-5 dm²/s |
| 5 in²/h | 8.961 × 10-5 dm²/s |
| 10 in²/h | 0.000179211 dm²/s |
| 25 in²/h | 0.000448028 dm²/s |
| 50 in²/h | 0.000896056 dm²/s |
| 100 in²/h | 0.00179211 dm²/s |