Convert Pounds per minute to Pounds per hour
Convert Pounds per minute (lb/min) to Pounds per hour (lb/h) instantly and accurately.
Conversion Formula
lb/h = lb/min × 60
About Pounds per minute
The pound per minute (lb/min) equals 0.45359237/60 ≈ 7.560×10⁻³ kg/s, the standard unit for US fire-suppression system design (sprinkler flow demand) and HVAC hydronic loop balancing. A fire-sprinkler head at 15 psi discharges roughly 30-40 lb/min of water; industrial humidifiers are rated in lb/min of steam. 1 lb/min ≈ 7.560×10⁻³ kg/s = 60 lb/h.
About Pounds per hour
The pound per hour (lb/h) equals 0.45359237/3600 ≈ 1.260×10⁻⁴ kg/s, the dominant unit in US process engineering and steam-boiler rating. Packaged steam boilers are rated in lb/h of steam output (typical range 100-2 000 lb/h); HVAC cooling-coil latent loads are calculated in lb/h of moisture; flue-gas emission inventories are reported in lb/h per stack. 1 lb/h ≈ 1.260×10⁻⁴ kg/s.
Quick Reference Table
| Pounds per minute (lb/min) | Pounds per hour (lb/h) |
|---|---|
| 1 lb/min | 60 lb/h |
| 2 lb/min | 120 lb/h |
| 5 lb/min | 300 lb/h |
| 10 lb/min | 600 lb/h |
| 25 lb/min | 1500 lb/h |
| 50 lb/min | 3000 lb/h |
| 100 lb/min | 6000 lb/h |