Calculate milling feed rate from spindle speed, number of flutes and chip load.
Using the calculator
Enter values that match the tool, material and operation. Check the unit beside each field before calculating.
Calculation
Feed rate is calculated as RPM × flute count × chip load.
Reading the result
The result follows the relationship shown on this page. Final shop settings also depend on material, tool geometry, workholding, machine capability, coolant and the actual cut.
Worked example
For example, 8,000 RPM × 4 flutes × 0.05 mm/tooth gives a feed rate of 1,600 mm/min.