Convert Pounds per square foot per second to Grams per square metre per hour
Convert Pounds per square foot per second (lb/(ft²·s)) to Grams per square metre per hour (g/(m²·h)) instantly and accurately.
Conversion Formula
g/(m²·h) = lb/(ft²·s) × 17576739.49
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 Grams per square metre per hour
The gram per square metre per hour (g/(m²·h)) equals 10⁻³/3600 ≈ 2.778 × 10⁻⁷ kg/(m²·s). It is widely used in textile and paper engineering for moisture management, evaporation studies, and water-vapour transmission rate (WVTR) testing of barrier materials per ISO 2528 and ASTM E96. Breathable fabrics range 500-10 000 g/(m²·h) (=500-10 000 gsm/h). 1 g/(m²·h) = 10⁻³ kg/(m²·h).
Quick Reference Table
| Pounds per square foot per second (lb/(ft²·s)) | Grams per square metre per hour (g/(m²·h)) |
|---|---|
| 1 lb/(ft²·s) | 17576700 g/(m²·h) |
| 2 lb/(ft²·s) | 35153500 g/(m²·h) |
| 5 lb/(ft²·s) | 87883700 g/(m²·h) |
| 10 lb/(ft²·s) | 175767000 g/(m²·h) |
| 25 lb/(ft²·s) | 439418000 g/(m²·h) |
| 50 lb/(ft²·s) | 878837000 g/(m²·h) |
| 100 lb/(ft²·s) | 1.758 × 109 g/(m²·h) |