Convert Pounds per square foot per hour to Milligrams per square metre per second
Convert Pounds per square foot per hour (lb/(ft²·h)) to Milligrams per square metre per second (mg/(m²·s)) instantly and accurately.
Conversion Formula
mg/(m²·s) = lb/(ft²·h) × 1356.229899
About Pounds per square foot per hour
The pound per square foot per hour (lb/(ft²·h)) equals 0.45359237/(0.09290304 × 3600) ≈ 1.356 × 10⁻³ kg/(m²·s). It is used in US heat and mass transfer texts (e.g., Perry's Chemical Engineers' Handbook) for mass flux through surfaces in drying, absorption, and distillation operations using consistent BTU-lb-h units. 1 lb/(ft²·h) ≈ 1.356 g/(m²·s).
About Milligrams per square metre per second
The milligram per square metre per second (mg/(m²·s)) equals 10⁻⁶ kg/(m²·s). It is used in aerosol science and atmospheric deposition studies for measuring dry deposition fluxes of particulate matter. Typical urban PM2.5 dry deposition velocities produce fluxes of 0.01-1 mg/(m²·s). 1 mg/(m²·s) = 3 600 mg/(m²·h).
Quick Reference Table
| Pounds per square foot per hour (lb/(ft²·h)) | Milligrams per square metre per second (mg/(m²·s)) |
|---|---|
| 1 lb/(ft²·h) | 1356.23 mg/(m²·s) |
| 2 lb/(ft²·h) | 2712.46 mg/(m²·s) |
| 5 lb/(ft²·h) | 6781.15 mg/(m²·s) |
| 10 lb/(ft²·h) | 13562.3 mg/(m²·s) |
| 25 lb/(ft²·h) | 33905.7 mg/(m²·s) |
| 50 lb/(ft²·h) | 67811.5 mg/(m²·s) |
| 100 lb/(ft²·h) | 135623 mg/(m²·s) |