Why this tool is useful
Use this converter when a angular velocity value is supplied in gradians per second, while a specification, worksheet or report requires revolutions per hour.

Convert gradians per second (gon/s) to revolutions per hour (rph) with a transparent angular velocity base-unit calculation.
Ready. Your working data stays in this browser.
Use this converter when a angular velocity value is supplied in gradians per second, while a specification, worksheet or report requires revolutions per hour.
The browser multiplies gon/s by 0.015708 to reach the shared SI reference, then divides by 0.00174533 to return rph. No value leaves the page.
Entering 1 gon/s returns 9 rph; the page also shows the exact factors used for an independent check.
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.