Convert Pounds per square foot per hour to Grams per square metre per hour
Convert Pounds per square foot per hour (lb/(ft²·h)) to Grams per square metre per hour (g/(m²·h)) instantly and accurately.
Conversion Formula
g/(m²·h) = lb/(ft²·h) × 4882.427636
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 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 hour (lb/(ft²·h)) | Grams per square metre per hour (g/(m²·h)) |
|---|---|
| 1 lb/(ft²·h) | 4882.43 g/(m²·h) |
| 2 lb/(ft²·h) | 9764.86 g/(m²·h) |
| 5 lb/(ft²·h) | 24412.1 g/(m²·h) |
| 10 lb/(ft²·h) | 48824.3 g/(m²·h) |
| 25 lb/(ft²·h) | 122061 g/(m²·h) |
| 50 lb/(ft²·h) | 244121 g/(m²·h) |
| 100 lb/(ft²·h) | 488243 g/(m²·h) |