Grinding Wheel Calculator - English

This calculator can be used to determine the relationship
 between wheel diameter, RPM, and surface speed.

Surface speed units are Surface Feet Per Minute (SFPM).
Wheel diameter is in inches.

Input any two values to calculate the third value.
(One of the three boxes must be blank when the calculation is made.)

The following simple relationship is used:

Wheel Surface Speed [sfpm] = RPM * Wheel Diameter [in.] * Pi / 12 [in./ft.]

SFPM = 

Wheel RPM = 

Wheel Diameter =