Convert Grains per hour to Grains per second
Convert Grains per hour (gr/h) to Grains per second (gr/s) instantly and accurately.
Conversion Formula
gr/s = gr/h × 0.0002777777778
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 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
| Grains per hour (gr/h) | Grains per second (gr/s) |
|---|---|
| 1 gr/h | 0.000277778 gr/s |
| 2 gr/h | 0.000555556 gr/s |
| 5 gr/h | 0.00138889 gr/s |
| 10 gr/h | 0.00277778 gr/s |
| 25 gr/h | 0.00694444 gr/s |
| 50 gr/h | 0.0138889 gr/s |
| 100 gr/h | 0.0277778 gr/s |