CNC chip load planner calculator

Calculate table feed and feed per revolution with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use table feed and feed per revolution to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Effective cutting teeth or flutes
4
Spindle speed (rpm)
10000
Supplier feed per tooth (mm/tooth)
0.02
Table feed (mm/min)
800
Feed per revolution (mm/rev)
0.08

Try another scenario

Effective cutting teeth or flutes
2
Spindle speed (rpm)
3000
Supplier feed per tooth (mm/tooth)
0.05
Table feed (mm/min)
300
Feed per revolution (mm/rev)
0.1
Calculation method

Calculation method

Table feed (mm/min)

Effective cutting teeth × rpm × supplier feed per tooth.

Feed per revolution (mm/rev)

Effective cutting teeth × supplier feed per tooth.

Symbols and units
a
Effective cutting teeth or flutes
b
Spindle speed (rpm)
c
Supplier feed per tooth (mm/tooth)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Arithmetic from a supplier-selected feed per effective tooth and rpm. Does not choose chip load for a tool/material, account for radial chip thinning, or approve machine limits.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

Sandvik Coromant: milling formulas and definitions ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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