The formula to calculate RPM is:
RPM = \(\frac{M/Min}{\pi D}\)
Where:
M/Min to RPM is a conversion from meters per minute to revolutions per minute. This is often used in mechanical engineering to measure the speed of rotation of a mechanical component. Meters per minute measures linear speed, or how fast an object is moving in a straight line, while revolutions per minute measures rotational speed, or how fast an object is spinning around an axis. The conversion between these two units of speed depends on the circumference of the rotating object.
Example 1:
Calculation:
RPM = \(\frac{100}{\pi \times 0.5} = \frac{100}{1.5708} \approx 63.66\) revolutions per minute
Example 2:
Calculation:
RPM = \(\frac{200}{\pi \times 1} = \frac{200}{3.14159} \approx 63.66\) revolutions per minute