Resource | Calculators, Tooling Calculators

Inches Per Minute Calculator

CPT x Z x RPM = IPM

This free Inches Per Minute (IPM) calculator helps machinists and CNC programmers quickly determine the optimal feed rate for milling, turning, drilling, and other machining processes. By inputting chip load, spindle speed, and number of cutting edges, users obtain accurate feed rates that improve tool life, surface finish, and overall machining efficiency. This tool reduces guesswork, speeds up setup, and minimizes tool wear or breakage, streamlining manufacturing operations for better productivity.

Calculate IPM
AbbreviationMeaning
CPTChip Load Per Tooth
ZNumber of Teeth
RPMRevolutions Per Minute