Convert Micrograms per hour to Grains per second
Convert Micrograms per hour (µg/h) to Grains per second (gr/s) instantly and accurately.
Conversion Formula
gr/s = µg/h × 4.286766209e-9
About Micrograms per hour
The microgram per hour (µg/h) equals 10⁻⁹/3600 ≈ 2.778×10⁻¹³ kg/s, used in corrosion science to quantify mass loss rates of thin films or passive oxide layers. A stainless steel specimen losing 1 µg/h represents an extremely low corrosion rate typical of passive surfaces in neutral aqueous environments. 1 µg/h = 1/3600 µg/s ≈ 2.778×10⁻¹³ 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
| Micrograms per hour (µg/h) | Grains per second (gr/s) |
|---|---|
| 1 µg/h | 4.287 × 10-9 gr/s |
| 2 µg/h | 8.574 × 10-9 gr/s |
| 5 µg/h | 2.143 × 10-8 gr/s |
| 10 µg/h | 4.287 × 10-8 gr/s |
| 25 µg/h | 1.072 × 10-7 gr/s |
| 50 µg/h | 2.143 × 10-7 gr/s |
| 100 µg/h | 4.287 × 10-7 gr/s |