Convert Grains per second to Long hundredweights per day
Convert Grains per second (gr/s) to Long hundredweights per day (cwt/d) instantly and accurately.
Conversion Formula
cwt/d = gr/s × 0.1102040816
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 Long hundredweights per day
The long hundredweight per day (cwt/d, UK) equals 50.80234544/86400 ≈ 5.880×10⁻⁴ kg/s, encountered in legacy British industrial reports for colliery output, port-handling capacity, and sugar-refinery throughput. Historical British coal-mine productivity was routinely expressed in long cwt per miner per day. 1 long cwt/d ≈ 5.880×10⁻⁴ kg/s = 112 lb/d.
Quick Reference Table
| Grains per second (gr/s) | Long hundredweights per day (cwt/d) |
|---|---|
| 1 gr/s | 0.110204 cwt/d |
| 2 gr/s | 0.220408 cwt/d |
| 5 gr/s | 0.55102 cwt/d |
| 10 gr/s | 1.10204 cwt/d |
| 25 gr/s | 2.7551 cwt/d |
| 50 gr/s | 5.5102 cwt/d |
| 100 gr/s | 11.0204 cwt/d |