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Calculators · Free
CNC milling feed planner
Convert tool diameter, cutting speed, tooth count and chip load into spindle RPM and table feed.
01Enter your values
Runs in your browser02CNC milling feed planner
Runs in your browser
How it works
Convert tool diameter, cutting speed, tooth count and chip load into spindle RPM and table feed.
RPM = k × Vc / (πD); Vf = RPM × z × fz
Runs in your browser
Discovery source
Your data stays yours
Inputs are processed on this page and are never sent to a server.
About this tool
Use tool ↑Convert tool diameter, cutting speed, tooth count and chip load into spindle RPM and table feed.
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
How to use it
- Enter your values
Unit for every dimension · Pitch circle diameter · Vc · z · fz · RPM max
- Calculate / generate
Convert tool diameter, cutting speed, tooth count and chip load into spindle RPM and table feed.
- Result
3,819.718634 RPM
Calculation method
RPM = k × Vc / (πD); Vf = RPM × z × fz
CNC milling feed planner
- Unit for every dimension
- mm
- Pitch circle diameter
- 10
- Vc
- 120
- z
- 4
- fz
- 0.05
- RPM max
- 12000 RPM
Result
3,819.718634 RPM
Frequently asked questions
Does the RPM cap keep the same chip load?
Yes. Feed is recalculated from capped RPM × teeth × chip load.
Where does my data go?
Calculations run on your device. Form inputs are not sent to a server.