Convert Milligrams per minute to Grains per second
Convert Milligrams per minute (mg/min) to Grains per second (gr/s) instantly and accurately.
Conversion Formula
gr/s = mg/min × 0.0002572059725
About Milligrams per minute
The milligram per minute (mg/min) equals 10⁻⁶/60 ≈ 1.667×10⁻⁸ kg/s, the preferred unit for laboratory peristaltic pump output and aerosol generator calibration. Metered-dose inhalers deliver 100-500 µg of active compound per actuation; at 1 actuation per minute that is 0.1-0.5 mg/min. 1 mg/min = 1/60 mg/s ≈ 1.667×10⁻⁸ kg/s.
About Grains per second
The grain per second (gr/s) equals 64.79891 mg/s or 6.479891×10⁻⁵ kg/s. The grain (= 1/7000 lb exactly) is the smallest avoirdupois mass unit, still used in ballistics for bullet and propellant-charge weights. A .308 Winchester rifle bullet of 168 gr fired in 1 s represents 168 gr/s; powder charge is typically 40-46 gr. 1 gr/s = 6.479891×10⁻⁵ kg/s = 64.79891 mg/s.
Quick Reference Table
| Milligrams per minute (mg/min) | Grains per second (gr/s) |
|---|---|
| 1 mg/min | 0.000257206 gr/s |
| 2 mg/min | 0.000514412 gr/s |
| 5 mg/min | 0.00128603 gr/s |
| 10 mg/min | 0.00257206 gr/s |
| 25 mg/min | 0.00643015 gr/s |
| 50 mg/min | 0.0128603 gr/s |
| 100 mg/min | 0.0257206 gr/s |