Convert Grains per hour to Pounds per minute
Convert Grains per hour (gr/h) to Pounds per minute (lb/min) instantly and accurately.
Conversion Formula
lb/min = gr/h × 2.380952381e-6
About Grains per hour
The grain per hour (gr/h) equals 6.479891×10⁻⁵/3600 ≈ 1.800×10⁻⁸ kg/s, used in HVAC psychrometric calculations for dehumidifier capacity and moisture-removal rates. ASHRAE load calculation spreadsheets report latent loads in grains of water per hour; a typical residential dehumidifier removes 5×10⁵-2×10⁶ gr/h. 1 gr/h ≈ 1.800×10⁻⁸ 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 hour (gr/h) | Pounds per minute (lb/min) |
|---|---|
| 1 gr/h | 2.381 × 10-6 lb/min |
| 2 gr/h | 4.762 × 10-6 lb/min |
| 5 gr/h | 1.19 × 10-5 lb/min |
| 10 gr/h | 2.381 × 10-5 lb/min |
| 25 gr/h | 5.952 × 10-5 lb/min |
| 50 gr/h | 0.000119048 lb/min |
| 100 gr/h | 0.000238095 lb/min |