Enter the Feet Per Minute and diameter into the calculator to determine the Revolutions Per Minute. This calculator can also evaluate any of the variables given the others are known.

Feet Per Minute To Rpm Formula

The following formula is used to calculate RPM (Revolutions Per Minute) from FPM (Feet Per Minute).

RPM = (FPM * 12) / (π * D)


  • RPM is the Revolutions Per Minute
  • FPM is the Feet Per Minute
  • D is the diameter of the rotating object in inchesπ is a constant, approximately equal to 3.14159

To calculate the RPM, multiply the FPM by 12 to convert feet to inches. Then divide this result by the product of π and the diameter of the rotating object. This will give the speed of the rotating object in Revolutions Per Minute.

What is Feet Per Minute To Rpm?

Feet Per Minute to RPM (Revolutions Per Minute) is a conversion used to measure the speed or velocity at which a mechanical component is operating. This is commonly used in industries such as manufacturing and engineering. For example, in a conveyor belt system, the speed of the belt may be measured in feet per minute, while the speed of the motor driving the belt is measured in RPM. The conversion between these two units allows for a better understanding and control of the system’s overall performance.

How to Calculate Feet Per Minute To Rpm?

The following steps outline how to calculate the RPM (Revolutions Per Minute) using the Feet Per Minute (FPM) to RPM formula:

  1. First, determine the FPM (Feet Per Minute) value.
  2. Next, determine the diameter of the rotating object in inches (D).
  3. Next, gather the formula from above: RPM = (FPM * 12) / (π * D).
  4. Finally, calculate the RPM using the formula.
  5. After inserting the variables and calculating the result, check your answer with a calculator.

Example Problem:

Use the following variables as an example problem to test your knowledge:

FPM (Feet Per Minute) = 60

D (diameter of the rotating object in inches) = 6