Convert Grains per minute to Pounds per minute
Convert Grains per minute (gr/min) to Pounds per minute (lb/min) instantly and accurately.
Conversion Formula
lb/min = gr/min × 0.0001428571429
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.
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.
Quick Reference Table
| Grains per minute (gr/min) | Pounds per minute (lb/min) |
|---|---|
| 1 gr/min | 0.000142857 lb/min |
| 2 gr/min | 0.000285714 lb/min |
| 5 gr/min | 0.000714286 lb/min |
| 10 gr/min | 0.00142857 lb/min |
| 25 gr/min | 0.00357143 lb/min |
| 50 gr/min | 0.00714286 lb/min |
| 100 gr/min | 0.0142857 lb/min |