Convert Milligrams per day to Grams per hour
Convert Milligrams per day (mg/d) to Grams per hour (g/h) instantly and accurately.
Conversion Formula
g/h = mg/d × 4.166666667e-5
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 Grams per hour
The gram per hour (g/h) equals 10⁻³/3600 ≈ 2.778×10⁻⁷ kg/s, used in fuel-cell hydrogen consumption tests, precision agricultural sprayers, and humidity calibration. A 1 kW PEM fuel cell consumes roughly 750 g/h of hydrogen at rated power. Automotive air-conditioning refrigerant leak standards are set in g/h. 1 g/h ≈ 2.778×10⁻⁷ kg/s = 1/3600 g/s.
Quick Reference Table
| Milligrams per day (mg/d) | Grams per hour (g/h) |
|---|---|
| 1 mg/d | 4.167 × 10-5 g/h |
| 2 mg/d | 8.333 × 10-5 g/h |
| 5 mg/d | 0.000208333 g/h |
| 10 mg/d | 0.000416667 g/h |
| 25 mg/d | 0.00104167 g/h |
| 50 mg/d | 0.00208333 g/h |
| 100 mg/d | 0.00416667 g/h |