Convert Pounds per hour to Grains per second
Convert Pounds per hour (lb/h) to Grains per second (gr/s) instantly and accurately.
Conversion Formula
gr/s = lb/h × 1.944444444
About Pounds per hour
The pound per hour (lb/h) equals 0.45359237/3600 ≈ 1.260×10⁻⁴ kg/s, the dominant unit in US process engineering and steam-boiler rating. Packaged steam boilers are rated in lb/h of steam output (typical range 100-2 000 lb/h); HVAC cooling-coil latent loads are calculated in lb/h of moisture; flue-gas emission inventories are reported in lb/h per stack. 1 lb/h ≈ 1.260×10⁻⁴ kg/s.
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.
Quick Reference Table
| Pounds per hour (lb/h) | Grains per second (gr/s) |
|---|---|
| 1 lb/h | 1.94444 gr/s |
| 2 lb/h | 3.88889 gr/s |
| 5 lb/h | 9.72222 gr/s |
| 10 lb/h | 19.4444 gr/s |
| 25 lb/h | 48.6111 gr/s |
| 50 lb/h | 97.2222 gr/s |
| 100 lb/h | 194.444 gr/s |