Convert Pounds per minute to Milligrams per hour
Convert Pounds per minute (lb/min) to Milligrams per hour (mg/h) instantly and accurately.
Conversion Formula
mg/h = lb/min × 27215542.2
About Pounds per minute
The pound per minute (lb/min) equals 0.45359237/60 ≈ 7.560×10⁻³ kg/s, the standard unit for US fire-suppression system design (sprinkler flow demand) and HVAC hydronic loop balancing. A fire-sprinkler head at 15 psi discharges roughly 30-40 lb/min of water; industrial humidifiers are rated in lb/min of steam. 1 lb/min ≈ 7.560×10⁻³ kg/s = 60 lb/h.
About Milligrams per hour
The milligram per hour (mg/h) equals 10⁻⁶/3600 ≈ 2.778×10⁻¹⁰ kg/s, adopted in transdermal drug-patch pharmacokinetics to express dermal absorption rate. A nicotine patch typically releases 14-21 mg over 24 h, corresponding to ≈0.58-0.88 mg/h. Environmental emission tests for laboratory fume hoods also express contaminant escape in mg/h. 1 mg/h = 1/3600 mg/s.
Quick Reference Table
| Pounds per minute (lb/min) | Milligrams per hour (mg/h) |
|---|---|
| 1 lb/min | 27215500 mg/h |
| 2 lb/min | 54431100 mg/h |
| 5 lb/min | 136078000 mg/h |
| 10 lb/min | 272155000 mg/h |
| 25 lb/min | 680389000 mg/h |
| 50 lb/min | 1.361 × 109 mg/h |
| 100 lb/min | 2.722 × 109 mg/h |