Convert Grains per second to Kilograms per second
Convert Grains per second (gr/s) to Kilograms per second (kg/s) instantly and accurately.
Conversion Formula
kg/s = gr/s × 6.479891000e-5
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.
About Kilograms per second
The kilogram per second (kg/s) is the SI coherent derived unit of mass flow rate relevant across all branches of engineering. Jet turbofan engines pass 100-800 kg/s of air through the core and bypass duct combined; drinking-water intake pipelines for a city of one million people sustain flow rates of 1 000-4 000 kg/s. It is the reference unit in the continuity equation and mass-conservation calculations. 1 kg/s = 3 600 kg/h ≈ 2.205 lb/s.
Quick Reference Table
| Grains per second (gr/s) | Kilograms per second (kg/s) |
|---|---|
| 1 gr/s | 6.48 × 10-5 kg/s |
| 2 gr/s | 0.000129598 kg/s |
| 5 gr/s | 0.000323995 kg/s |
| 10 gr/s | 0.000647989 kg/s |
| 25 gr/s | 0.00161997 kg/s |
| 50 gr/s | 0.00323995 kg/s |
| 100 gr/s | 0.00647989 kg/s |