Convert Pounds per day to Metric tons per day
Convert Pounds per day (lb/d) to Metric tons per day (t/d) instantly and accurately.
Conversion Formula
t/d = lb/d × 0.00045359237
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 Metric tons per day
The metric tonne per day (t/d) equals 1 000/86400 ≈ 0.011574 kg/s, standard in hydrometallurgy, wastewater treatment, and environmental mass-balance reporting. A large copper smelter processes 2 000-3 000 t/d of ore; a modern desalination plant produces 100 000-500 000 t/d of potable water; IPCS industrial emission guidelines use t/d for stack mass rates. 1 t/d ≈ 0.011574 kg/s ≈ 1.102 short ton/d.
Quick Reference Table
| Pounds per day (lb/d) | Metric tons per day (t/d) |
|---|---|
| 1 lb/d | 0.000453592 t/d |
| 2 lb/d | 0.000907185 t/d |
| 5 lb/d | 0.00226796 t/d |
| 10 lb/d | 0.00453592 t/d |
| 25 lb/d | 0.0113398 t/d |
| 50 lb/d | 0.0226796 t/d |
| 100 lb/d | 0.0453592 t/d |