Convert Revolutions per hour to Gradians per second
Convert Revolutions per hour (rev/h) to Gradians per second (gon/s) instantly and accurately.
Conversion Formula
gon/s = rev/h × 0.1111111111
About Revolutions per hour
The revolution per hour (rev/h) equals π/1800 rad/s ≈ 1.745 × 10⁻³ rad/s, used for very slow rotating machinery. Cement rotary kilns - the world's longest continuously rotating machines (up to 230 m, 4000 t) - rotate at 1-5 rev/h; ball mills for ore grinding at 10-20 rev/h; concrete mixer trucks at 1-4 rev/h during transport. Large astronomical antenna drives and slow-scan telescope azimuth movements are also conveniently expressed in rev/h. 1 rev/h = π/1800 rad/s ≈ 0.02778 rpm.
About Gradians per second
The gradian per second (gon/s) equals π/200 rad/s ≈ 0.01571 rad/s, where the gradian (1 gon = 0.9°) divides the right angle into 100 equal parts. Introduced during the French Revolution as part of decimal reform, the gradian remains the standard angular unit in European continental surveying: total stations (Leica TS16, Trimble S9) sold in Germany, France, and Scandinavia default to gon; Austrian and Swiss cadastral land registers record all bearings in gon. DIN 18709 specifies survey work in gon; ISO 80000-3 acknowledges the unit. 1 gon/s = π/200 rad/s ≈ 0.9 °/s ≈ 0.15 rpm.
Quick Reference Table
| Revolutions per hour (rev/h) | Gradians per second (gon/s) |
|---|---|
| 1 rev/h | 0.111111 gon/s |
| 2 rev/h | 0.222222 gon/s |
| 5 rev/h | 0.555556 gon/s |
| 10 rev/h | 1.11111 gon/s |
| 25 rev/h | 2.77778 gon/s |
| 50 rev/h | 5.55556 gon/s |
| 100 rev/h | 11.1111 gon/s |