CNC CALCULATORS
Chip Load Calculator
Calculate material removed per tooth from feed rate, spindle speed and flute count.
Input parameters
Results update as you type.
CALCULATED RESULT
THE FORMULA
Chip load = feed rate ÷ (RPM × flute count)
Feed rate in millimeters per minute divided by spindle revolutions per minute and the number of cutting flutes gives millimeters removed per tooth.
These tools calculate the values you supply. They do not recommend tool, material or machine parameters.
Check nominal feed per cutting tooth
Worked chip-load example
At 6000 mm/min, 18000 RPM and two flutes, 6000 ÷ (18000 × 2) gives 0.166666… mm/tooth. This arithmetic checks supplied settings; it does not recommend them.
Interpret the inputs
Use linear feed per minute, spindle revolutions per minute and the actual flute count. Inch feed yields inch chip load; RPM and flute count remain unchanged. Engagement and tooling guidance matter beyond this nominal relationship.