Convert Pounds per day to Slugs per hour
Convert Pounds per day (lb/d) to Slugs per hour (slug/h) instantly and accurately.
Conversion Formula
slug/h = lb/d × 0.00129503959
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 Slugs per hour
The slug per hour (slug/h) equals 14.5939029372/3600 ≈ 4.054×10⁻³ kg/s, used in aviation aerodynamics problems expressed in foot-pound-second units. Engine mass-flow data from legacy US military specifications and NASA test reports use slug/h as an intermediate unit between the tiny slug/s and large slug/day. 1 slug/h ≈ 4.054×10⁻³ kg/s ≈ 32.174 lb/h.
Quick Reference Table
| Pounds per day (lb/d) | Slugs per hour (slug/h) |
|---|---|
| 1 lb/d | 0.00129504 slug/h |
| 2 lb/d | 0.00259008 slug/h |
| 5 lb/d | 0.0064752 slug/h |
| 10 lb/d | 0.0129504 slug/h |
| 25 lb/d | 0.032376 slug/h |
| 50 lb/d | 0.064752 slug/h |
| 100 lb/d | 0.129504 slug/h |