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Feed Rate Calculator

Milling feed rate from chip load, flute count and spindle speed, with material removal rate.

Enter values

Results update as you type.

Result

Feed rate

600 mm/min

In inches per minute
23.622
Feed per revolution
0.2 mm
Material removal rate
12 cm³/min
Time per 100 mm pass
10 s

About the Feed Rate Calculator

Milling feed rate from chip load, flute count and spindle speed, with material removal rate.

Also known as: ipm calculator, chip load calculator, milling feed, mm per minute feed.

How to use this calculator

  1. Enter spindle speed, number of flutes, chip load per tooth, depth of cut and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

feed = RPM × flutes × chip load

Worked example

Using the values pre-filled in the calculator above:

  • Spindle speed = 3,000 RPM
  • Number of flutes = 4
  • Chip load per tooth = 0.05 mm
  • Depth of cut = 2 mm
  • Width of cut = 10 mm

the calculator returns:

  • Feed rate: 600 mm/min
  • In inches per minute: 23.622
  • Feed per revolution: 0.2 mm
  • Material removal rate: 12 cm³/min