Convert Grams per hour to Grains per minute
Convert Grams per hour (g/h) to Grains per minute (gr/min) instantly and accurately.
Conversion Formula
gr/min = g/h × 0.2572059725
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.
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.
Quick Reference Table
| Grams per hour (g/h) | Grains per minute (gr/min) |
|---|---|
| 1 g/h | 0.257206 gr/min |
| 2 g/h | 0.514412 gr/min |
| 5 g/h | 1.28603 gr/min |
| 10 g/h | 2.57206 gr/min |
| 25 g/h | 6.43015 gr/min |
| 50 g/h | 12.8603 gr/min |
| 100 g/h | 25.7206 gr/min |