Convert Milligrams per square metre per minute to Pounds per square foot per hour
Convert Milligrams per square metre per minute (mg/(m²·min)) to Pounds per square foot per hour (lb/(ft²·h)) instantly and accurately.
Conversion Formula
lb/(ft²·h) = mg/(m²·min) × 1.228896862e-5
About Milligrams per square metre per minute
The milligram per square metre per minute (mg/(m²·min)) equals 10⁻⁶/60 ≈ 1.667 × 10⁻⁸ kg/(m²·s). It appears in pharmaceutical dissolution testing and transdermal drug-delivery patch characterisation, where drug release rates measured minute-by-minute are compared to in-vivo absorption data. 1 mg/(m²·min) = 60 mg/(m²·h).
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).
Quick Reference Table
| Milligrams per square metre per minute (mg/(m²·min)) | Pounds per square foot per hour (lb/(ft²·h)) |
|---|---|
| 1 mg/(m²·min) | 1.229 × 10-5 lb/(ft²·h) |
| 2 mg/(m²·min) | 2.458 × 10-5 lb/(ft²·h) |
| 5 mg/(m²·min) | 6.144 × 10-5 lb/(ft²·h) |
| 10 mg/(m²·min) | 0.00012289 lb/(ft²·h) |
| 25 mg/(m²·min) | 0.000307224 lb/(ft²·h) |
| 50 mg/(m²·min) | 0.000614448 lb/(ft²·h) |
| 100 mg/(m²·min) | 0.0012289 lb/(ft²·h) |