Convert Pounds per square foot per second to Milligrams per square metre per hour
Convert Pounds per square foot per second (lb/(ft²·s)) to Milligrams per square metre per hour (mg/(m²·h)) instantly and accurately.
Conversion Formula
mg/(m²·h) = lb/(ft²·s) × 17576739490
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).
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).
Quick Reference Table
| Pounds per square foot per second (lb/(ft²·s)) | Milligrams per square metre per hour (mg/(m²·h)) |
|---|---|
| 1 lb/(ft²·s) | 1.758 × 1010 mg/(m²·h) |
| 2 lb/(ft²·s) | 3.515 × 1010 mg/(m²·h) |
| 5 lb/(ft²·s) | 8.788 × 1010 mg/(m²·h) |
| 10 lb/(ft²·s) | 1.758 × 1011 mg/(m²·h) |
| 25 lb/(ft²·s) | 4.394 × 1011 mg/(m²·h) |
| 50 lb/(ft²·s) | 8.788 × 1011 mg/(m²·h) |
| 100 lb/(ft²·s) | 1.758 × 1012 mg/(m²·h) |