CNC Feed & Speed Calculator
Calculate table feed rate and cutting speed from spindle RPM, feed per tooth, and cutter geometry.
How to Use the CNC Feed & Speed Calculator
- Enter spindle speed in RPM.
- Enter feed per tooth in mm.
- Enter number of flutes.
- Review feed rate and cutting speed.
Use Cases
- •CNC milling programming
- •Machining parameter optimization
- •Tool manufacturer recommendations
Formula
Feed = RPM × fz × Z; Vc = π × D × RPM / 1000
Frequently Asked Questions
How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.