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RPM is revolutions per minute. You can not measure distance without knowing the radius or diameter of what that revolves.

With diameter or radius you can calculate the circles outer length. Formulas for this is: With Radius: 2*pi*r, With Diameter: pi*d, where pi is approx 3,14 (accurate enough for most calculations but pi is in fact an endless series of numbers, 3,14159265 and billions more decimals)

This length can be multiplied directly with RPM and you get total distance per minute.

An engine running but standing still will however not move and the calculated answer does not have to indicate actual distance travelled.

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Q: How do you measure distance based off of RPM?
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