CNC Calculator
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OperatorCNC Technician

Feed Rate Calculator

Calculate the optimal feed rate for your milling operations

Input Parameters
Enter the required parameters to calculate the feed rate
Material Preset
Results
The calculated feed rate based on your input parameters

Enter parameters and calculate to see results

Adjust parameters as needed for your specific material and tool requirements.

Calculator Information
Details about the Feed Rate calculator

Description

Calculates the table feed (feed rate) based on the feed per tooth, spindle speed, and number of flutes.

Formulas

For both metric and imperial:

Vf = n × z × fz

Units: mm/min

Alternative using feed per revolution:

Vf = n × fn

Where fn = Feed per revolution = z × fz

Parameters

  • n: Spindle Speed (RPM)
  • z: Number of teeth (flutes)
  • fz: Feed per tooth (mm/tooth)
  • fn: Feed per revolution (mm/rev)
  • Vf: Table Feed (Feed Speed) (mm/min)

Notes

Use chip load recommendations from catalogs carefully, considering Chip Thinning Factor for non-90° cutters or when ae < r.