Grinding Wheel Speed Calculator

All Norton grinding wheels are marked with a maximum operating speed in RPM. Most machines, and especially CNC machines, use Surface Feet Per Minute (SFPM) as an input, which requires operators to do the conversion. This calculator will do this by inputting the wheel diameter in either English units or metric, then inputting the RPM to calculate SFPM or MPS.

Follow the steps below to calculate SFPM and M/Sec.

1. Fill in the fields in light grey to calculate your results
2. Click "View Results' to see recommended wheel speeds, SFPM and M/Sec
3. Clear your inputs at any time by clicking on the "Reset" button