Convert Kilograms per square metre per hour to Pounds per square foot per hour
Convert Kilograms per square metre per hour (kg/(m²·h)) to Pounds per square foot per hour (lb/(ft²·h)) instantly and accurately.
Conversion Formula
lb/(ft²·h) = kg/(m²·h) × 0.2048161436
About Kilograms per square metre per hour
The kilogram per square metre per hour (kg/(m²·h)) equals 1/3600 ≈ 2.778 × 10⁻⁴ kg/(m²·s). It is the most common practical SI-based unit in process engineering for mass transfer coefficients, boiler evaporation rates, and precipitation flux in meteorology. Rain of 10 mm/h ≈ 10 kg/(m²·h). 1 kg/(m²·h) = 1 000 g/(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
| Kilograms per square metre per hour (kg/(m²·h)) | Pounds per square foot per hour (lb/(ft²·h)) |
|---|---|
| 1 kg/(m²·h) | 0.204816 lb/(ft²·h) |
| 2 kg/(m²·h) | 0.409632 lb/(ft²·h) |
| 5 kg/(m²·h) | 1.02408 lb/(ft²·h) |
| 10 kg/(m²·h) | 2.04816 lb/(ft²·h) |
| 25 kg/(m²·h) | 5.1204 lb/(ft²·h) |
| 50 kg/(m²·h) | 10.2408 lb/(ft²·h) |
| 100 kg/(m²·h) | 20.4816 lb/(ft²·h) |