Convert Pounds per square foot per minute to Kilograms per square metre per second
Convert Pounds per square foot per minute (lb/(ft²·min)) to Kilograms per square metre per second (kg/(m²·s)) instantly and accurately.
Conversion Formula
kg/(m²·s) = lb/(ft²·min) × 0.08137379394
About Pounds per square foot per minute
The pound per square foot per minute (lb/(ft²·min)) equals 0.45359237/(0.09290304 × 60) ≈ 0.08137 kg/(m²·s). It appears in US filtration and membrane technology standards, where filter-press and belt-press dewatering rates are stated per square foot per minute. 1 lb/(ft²·min) ≈ 81.37 g/(m²·s).
About Kilograms per square metre per second
The kilogram per square metre per second (kg/(m²·s)) is the SI coherent unit of mass flux density, equal to 1 kg·m⁻²·s⁻¹. It appears directly in the continuity equation (ṁ = ρv) and in Stefan's law for evaporation. Rocket nozzle throat mass flux can reach 500-2000 kg/(m²·s); convective heat exchangers: 100-500 kg/(m²·s). 1 kg/(m²·s) = 1 000 g/(m²·s).
Quick Reference Table
| Pounds per square foot per minute (lb/(ft²·min)) | Kilograms per square metre per second (kg/(m²·s)) |
|---|---|
| 1 lb/(ft²·min) | 0.0813738 kg/(m²·s) |
| 2 lb/(ft²·min) | 0.162748 kg/(m²·s) |
| 5 lb/(ft²·min) | 0.406869 kg/(m²·s) |
| 10 lb/(ft²·min) | 0.813738 kg/(m²·s) |
| 25 lb/(ft²·min) | 2.03434 kg/(m²·s) |
| 50 lb/(ft²·min) | 4.06869 kg/(m²·s) |
| 100 lb/(ft²·min) | 8.13738 kg/(m²·s) |