Convert Grains per minute to Milligrams per minute
Convert Grains per minute (gr/min) to Milligrams per minute (mg/min) instantly and accurately.
Conversion Formula
mg/min = gr/min × 64.79891
About Grains per minute
The grain per minute (gr/min) equals 6.479891×10⁻⁵/60 ≈ 1.080×10⁻⁶ kg/s. This unit appears in HVAC humidity engineering: moisture added or removed from conditioned air is traditionally expressed in grains of water per pound of dry air per minute in US practice. A whole-house humidifier may evaporate 300-600 gr/min at design load. 1 gr/min ≈ 1.080×10⁻⁶ kg/s.
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.
Quick Reference Table
| Grains per minute (gr/min) | Milligrams per minute (mg/min) |
|---|---|
| 1 gr/min | 64.7989 mg/min |
| 2 gr/min | 129.598 mg/min |
| 5 gr/min | 323.995 mg/min |
| 10 gr/min | 647.989 mg/min |
| 25 gr/min | 1619.97 mg/min |
| 50 gr/min | 3239.95 mg/min |
| 100 gr/min | 6479.89 mg/min |