Convert Pounds per hour to Grains per hour
Convert Pounds per hour (lb/h) to Grains per hour (gr/h) instantly and accurately.
Conversion Formula
gr/h = lb/h × 7000
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 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.
Quick Reference Table
| Pounds per hour (lb/h) | Grains per hour (gr/h) |
|---|---|
| 1 lb/h | 7000 gr/h |
| 2 lb/h | 14000 gr/h |
| 5 lb/h | 35000 gr/h |
| 10 lb/h | 70000 gr/h |
| 25 lb/h | 175000 gr/h |
| 50 lb/h | 350000 gr/h |
| 100 lb/h | 700000 gr/h |