Convert Kilograms per hour to Grains per minute
Convert Kilograms per hour (kg/h) to Grains per minute (gr/min) instantly and accurately.
Conversion Formula
gr/min = kg/h × 257.2059725
About Kilograms per hour
The kilogram per hour (kg/h) equals 1/3600 kg/s ≈ 2.778×10⁻⁴ kg/s, the dominant metric unit in the chemical and petrochemical industry for equipment sizing. Distillation column feed rates, reactor throughputs, heat-exchanger duty calculations, and pump datasheets routinely use kg/h. A 500 MW coal-fired power station burns ≈180 000 kg/h of coal. 1 kg/h ≈ 2.778×10⁻⁴ kg/s = 2.205 lb/h.
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
| Kilograms per hour (kg/h) | Grains per minute (gr/min) |
|---|---|
| 1 kg/h | 257.206 gr/min |
| 2 kg/h | 514.412 gr/min |
| 5 kg/h | 1286.03 gr/min |
| 10 kg/h | 2572.06 gr/min |
| 25 kg/h | 6430.15 gr/min |
| 50 kg/h | 12860.3 gr/min |
| 100 kg/h | 25720.6 gr/min |