Convert Pounds per hour to Grains per minute
Convert Pounds per hour (lb/h) to Grains per minute (gr/min) instantly and accurately.
Conversion Formula
gr/min = lb/h × 116.6666667
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.
About Grains per minute
The grain per minute (gr/min) equals 6.479891×10⁻⁵/60 ≈ 1.080×10⁻⁶ kg/s. This unit appears in HVAC humidity engineering: moisture added or removed from conditioned air is traditionally expressed in grains of water per pound of dry air per minute in US practice. A whole-house humidifier may evaporate 300-600 gr/min at design load. 1 gr/min ≈ 1.080×10⁻⁶ kg/s.
Quick Reference Table
| Pounds per hour (lb/h) | Grains per minute (gr/min) |
|---|---|
| 1 lb/h | 116.667 gr/min |
| 2 lb/h | 233.333 gr/min |
| 5 lb/h | 583.333 gr/min |
| 10 lb/h | 1166.67 gr/min |
| 25 lb/h | 2916.67 gr/min |
| 50 lb/h | 5833.33 gr/min |
| 100 lb/h | 11666.7 gr/min |