Enter the diameter or circumference and revolutions per minute (RPM) to convert to feet per minute (FPM).
RPM to FPM Conversion Formula
The formula to convert RPM to FPM is:
FPM = Diameter * π * RPM / 12
Variables:
- FPM is Feet Per Minute
- Diameter is the diameter of the rotating object in inches
- RPM is Revolutions Per Minute
- π is the mathematical constant Pi (approximately 3.14159)
To calculate the FPM, multiply the diameter by Pi, then by the RPM, and finally divide by 12.
What is RPM to FPM Conversion?
RPM to FPM conversion is the process of converting the speed of a rotating object from revolutions per minute to feet per minute. This is commonly used in various mechanical and engineering applications to understand the surface speed of a rotating object. By knowing the diameter or circumference and the RPM, one can easily determine the linear speed at the circumference of the rotating object.
How to Convert RPM to FPM?
To convert RPM to FPM, follow these steps:
- Measure the diameter of the rotating object in inches.
- Determine the RPM of the object.
- Use the formula: FPM = Diameter * π * RPM / 12.
- Alternatively, if you have the circumference, use: FPM = Circumference * RPM / 12.
- Enter the values into the calculator above to get the FPM.
Example Problem:
Use the following example to test your understanding:
Diameter = 24 inches
RPM = 500
Using the formula: FPM = 24 * π * 500 / 12 = 3141.59 FPM