Convert Grains per hour to Long hundredweights per day
Convert Grains per hour (gr/h) to Long hundredweights per day (cwt/d) instantly and accurately.
Conversion Formula
cwt/d = gr/h × 3.061224490e-5
About Grains per hour
The grain per hour (gr/h) equals 6.479891×10⁻⁵/3600 ≈ 1.800×10⁻⁸ kg/s, used in HVAC psychrometric calculations for dehumidifier capacity and moisture-removal rates. ASHRAE load calculation spreadsheets report latent loads in grains of water per hour; a typical residential dehumidifier removes 5×10⁵-2×10⁶ gr/h. 1 gr/h ≈ 1.800×10⁻⁸ kg/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 hour (gr/h) | Long hundredweights per day (cwt/d) |
|---|---|
| 1 gr/h | 3.061 × 10-5 cwt/d |
| 2 gr/h | 6.122 × 10-5 cwt/d |
| 5 gr/h | 0.000153061 cwt/d |
| 10 gr/h | 0.000306122 cwt/d |
| 25 gr/h | 0.000765306 cwt/d |
| 50 gr/h | 0.00153061 cwt/d |
| 100 gr/h | 0.00306122 cwt/d |