Convert tool diameter, cutting speed, tooth count and chip load into spindle RPM and table feed.
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Runs in your browser
Convert tool diameter, cutting speed, tooth count and chip load into spindle RPM and table feed.
Runs in your browser
Inputs are processed on this page and are never sent to a server.
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
RPM = k × Vc / (πD); Vf = RPM × z × fz
3,819.718634 RPM
RPM = k × Vc / (πD); Vf = RPM × z × fz
3,819.718634 RPM
Yes. Feed is recalculated from capped RPM × teeth × chip load.
Calculations run on your device. Form inputs are not sent to a server.
The initial choice follows your browser region. Your choice is remembered on this device. Gallons are US gallons. Switching units keeps your numbers unchanged and interprets them in the new unit.
Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
Choose the mode that matches the data you entered.
Options: mm · in
Cutting tool diameter, measured across the cutter
Enter a numerical value for this quantity. Use the unit shown beside this field. mm / in
Minimum: 0.001 · Maximum: 1000000 mm
Surface cutting speed from validated tool/material data
Enter a numerical value for this quantity. Use the unit shown beside this field. m/min / ft/min
Minimum: 0.001 · Maximum: 1000000 m/min
Number of cutting teeth on the tool
Enter a whole number; fractional counts are not valid.
Minimum: 1 · Maximum: 1000
Feed per tooth, not feed per revolution
Enter a numerical value for this quantity. Use the unit shown beside this field. mm / in
Minimum: 0.000001 · Maximum: 10000 mm
Enter a numerical value for this quantity. Use the unit shown beside this field. RPM
Minimum: 0 · Maximum: 10000000 RPM
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
Calculated from your entries using the method below.
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
Calculated from your entries using the method below.
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
Calculated from your entries using the method below.
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
Calculated from your entries using the method below.
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
Calculated from your entries using the method below.
Uses the entered cutting data; an optional machine limit caps RPM and recomputes feed. It does not recommend material or tool data.
Calculated from your entries using the method below.
Mistake: Changing units and assuming the entered numbers were converted.
Fix: Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
Mistake: Treating a result as valid outside the described scope.
Fix: Yes. Feed is recalculated from capped RPM × teeth × chip load.
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