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# What is the formula to convert kilometers per hour [km/h] to revolutions per minute [rpm]?

The formula to convert a linear velocity expressed in **kilometres per hour [km/h]** to an angular velocity expressed in **revolutions per minute [rpm]** is given by:

Where:

- is the linear velocity expressed in kilometres per hour (km/h)
- is the angular velocity expressed in revolution per minute (rpm)
- is the radius expressed in meters (m)