Convert Grains per second to Short tons per minute
Convert Grains per second (gr/s) to Short tons per minute (ton/min) instantly and accurately.
Conversion Formula
ton/min = gr/s × 4.285714286e-6
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 Short tons per minute
The short ton per minute (ton/min, US) equals 907.18474/60 ≈ 15.120 kg/s, typical for high-capacity conveyor belts and bucket-wheel excavators in open-cast mining. A large surface coal mine loads unit trains with overland conveyors rated at 5 000-15 000 short ton/h = 83-250 ton/min. 1 short ton/min ≈ 15.120 kg/s = 2 000 lb/min.
Quick Reference Table
| Grains per second (gr/s) | Short tons per minute (ton/min) |
|---|---|
| 1 gr/s | 4.286 × 10-6 ton/min |
| 2 gr/s | 8.571 × 10-6 ton/min |
| 5 gr/s | 2.143 × 10-5 ton/min |
| 10 gr/s | 4.286 × 10-5 ton/min |
| 25 gr/s | 0.000107143 ton/min |
| 50 gr/s | 0.000214286 ton/min |
| 100 gr/s | 0.000428571 ton/min |