Angular Speed Converter
RPM
An RPM to radians per second converter converts rotational speed between revolutions per minute (RPM) — used for engines and motors — and rad/s, the SI unit for angular velocity.
- 11 revolution = 2π radians
- 21 RPM = 2π ÷ 60 rad/s = 0.10472 rad/s
- 3rad/s = RPM × (2π ÷ 60)
- 4RPM = rad/s × (60 ÷ 2π)
1,000 RPM (engine idle)=104.72 rad/s
3,000 RPM (typical engine)=314.16 rad/s
60 RPM (1 revolution/second)=6.283 rad/s = 2π
| RPM | rad/s | Context |
|---|---|---|
| 1 | 0.105 | Very slow rotation |
| 60 | 6.283 | 1 rev per second |
| 600 | 62.83 | Slow motor |
| 1500 | 157.1 | Engine idle |
| 3000 | 314.2 | Driving RPM |
| 6000 | 628.3 | High revving |
References
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