Convert Milligrams per day to Milligrams per hour
Convert Milligrams per day (mg/d) to Milligrams per hour (mg/h) instantly and accurately.
Conversion Formula
mg/h = mg/d × 0.04166666667
About Milligrams per day
The milligram per day (mg/d) equals 10⁻⁶/86400 ≈ 1.157×10⁻¹¹ kg/s, used in toxicology (daily intake limits) and in slow-release pharmaceutical implants. WHO acceptable daily intake for food additives is expressed in mg/kg body mass per day; a 70 kg adult at 1 mg/kg/d represents a 70 mg/d dose. 1 mg/d ≈ 1.157×10⁻¹¹ kg/s.
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
| Milligrams per day (mg/d) | Milligrams per hour (mg/h) |
|---|---|
| 1 mg/d | 0.0416667 mg/h |
| 2 mg/d | 0.0833333 mg/h |
| 5 mg/d | 0.208333 mg/h |
| 10 mg/d | 0.416667 mg/h |
| 25 mg/d | 1.04167 mg/h |
| 50 mg/d | 2.08333 mg/h |
| 100 mg/d | 4.16667 mg/h |