Convert Milligrams per square metre per hour to Pounds per square foot per second
Convert Milligrams per square metre per hour (mg/(m²·h)) to Pounds per square foot per second (lb/(ft²·s)) instantly and accurately.
Conversion Formula
lb/(ft²·s) = mg/(m²·h) × 5.689337323e-11
About Milligrams per square metre per hour
The milligram per square metre per hour (mg/(m²·h)) equals 10⁻⁶/3600 ≈ 2.778 × 10⁻¹⁰ kg/(m²·s). It is the standard unit in corrosion science and protective-coating industry for measuring corrosion rate or moisture vapour transmission rate (MVTR) of membranes and packaging films. Rates of 1-100 mg/(m²·h) are typical for polymer films. 1 mg/(m²·h) = 10⁻³ g/(m²·h).
About Pounds per square foot per second
The pound per square foot per second (lb/(ft²·s)) equals 0.45359237/0.09290304 ≈ 4.882 kg/(m²·s). It is the coherent FPS mass flux unit, used in US aerospace for rocket motor mass flux, ballistic studies, and hypervelocity heat-shield ablation rate specifications. 1 lb/(ft²·s) ≈ 4.882 kg/(m²·s).
Quick Reference Table
| Milligrams per square metre per hour (mg/(m²·h)) | Pounds per square foot per second (lb/(ft²·s)) |
|---|---|
| 1 mg/(m²·h) | 5.689 × 10-11 lb/(ft²·s) |
| 2 mg/(m²·h) | 1.138 × 10-10 lb/(ft²·s) |
| 5 mg/(m²·h) | 2.845 × 10-10 lb/(ft²·s) |
| 10 mg/(m²·h) | 5.689 × 10-10 lb/(ft²·s) |
| 25 mg/(m²·h) | 1.422 × 10-9 lb/(ft²·s) |
| 50 mg/(m²·h) | 2.845 × 10-9 lb/(ft²·s) |
| 100 mg/(m²·h) | 5.689 × 10-9 lb/(ft²·s) |