Revolutions per minute
Revolutions per minute, sometimes called RPM, is a measure of angular frequency. It means the number of times something spins in one minute.
| Spins per |
RPM |
|---|---|
| ¼ | 15 |
| ½ | 30 |
| 1 | 60 |
| 2 | 120 |
| 5 | 300 |
| 10 | 600 |
| 25 | 1500 |
For example, if a wheel spins one time in one second, it is doing 60 RPM, because there is 60 seconds in one minute.
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