CNC feeds and speeds connect cutting speed, tool diameter, spindle speed, chip load, tooth count, and table feed. They provide a starting point for machining, while tool material, work material, rigidity, engagement, coolant, chip evacuation, finish, and supplier limits determine practical settings.
CNC Feed and Speed Calculator applies this concept to its defined inputs and workflow. It is designed to calculate CNC feed and speed relationships.
The calculator evaluates form values, unit selection, and calculation mode and returns RPM, cutting speed, feed rate, and chip load using the stated method. The selected units and sign or reference conventions must describe one consistent physical case. Users should interpret the output within the assumptions shown on the page and repeat the check with trusted reference values when the result affects engineering or research decisions. No correction is made for radial chip thinning, tool wear, runout, interrupted cuts, or machine acceleration.