Convert Grains per hour to Pounds per day
Convert Grains per hour (gr/h) to Pounds per day (lb/d) instantly and accurately.
Conversion Formula
lb/d = gr/h × 0.003428571429
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 day
The pound per day (lb/d) equals 0.45359237/86400 ≈ 5.249×10⁻⁶ kg/s, used in wastewater engineering for reporting biochemical oxygen demand (BOD) loads, nutrient loadings, and sludge production. US NPDES permits set effluent mass-load limits in lb/d; a municipal WWTP serving 10 000 people generates roughly 1 500-3 000 lb/d of dry sludge solids. 1 lb/d ≈ 5.249×10⁻⁶ kg/s.
Quick Reference Table
| Grains per hour (gr/h) | Pounds per day (lb/d) |
|---|---|
| 1 gr/h | 0.00342857 lb/d |
| 2 gr/h | 0.00685714 lb/d |
| 5 gr/h | 0.0171429 lb/d |
| 10 gr/h | 0.0342857 lb/d |
| 25 gr/h | 0.0857143 lb/d |
| 50 gr/h | 0.171429 lb/d |
| 100 gr/h | 0.342857 lb/d |