Convert Pounds per day to Long tons per hour
Convert Pounds per day (lb/d) to Long tons per hour (long ton/h) instantly and accurately.
Conversion Formula
long ton/h = lb/d × 1.860119048e-5
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.
About Long tons per hour
The long ton per hour (long ton/h) equals 1 016.0469088/3600 ≈ 0.28224 kg/s, the traditional British equivalent of t/h still seen in pre-metric UK engineering datasheets and Lloyd's Register vessel capacity tables. An older British colliery might report winding-tower output in long ton/h; historic cement-kiln logs used long ton/h. 1 long ton/h ≈ 0.28224 kg/s ≈ 1.016 t/h.
Quick Reference Table
| Pounds per day (lb/d) | Long tons per hour (long ton/h) |
|---|---|
| 1 lb/d | 1.86 × 10-5 long ton/h |
| 2 lb/d | 3.72 × 10-5 long ton/h |
| 5 lb/d | 9.301 × 10-5 long ton/h |
| 10 lb/d | 0.000186012 long ton/h |
| 25 lb/d | 0.00046503 long ton/h |
| 50 lb/d | 0.00093006 long ton/h |
| 100 lb/d | 0.00186012 long ton/h |