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Volumetric material removal rate for milling operations.
Formula
MRR = WOC × DOC × IPMUnits: in³/min
Machine-readable reference
Structured metadata for formulas, tags, canonical status, and future diagram support.
Slug
mrr-formula
Category
Formulas & Calculations
Canonical
Yes
Updated
4/23/2026
Units
in³/min
Tags
formula, mrr, horsepower, planning
Source
Machinery's Handbook, 31st ed., Power Constants
MRR estimates how much material is being removed per minute. It is useful for cycle-time planning and horsepower estimation.
MRR = WOC × DOC × IPM
Where:
Higher MRR can improve throughput, but only if spindle power, rigidity, and tool life stay in range.
Source: Machinery's Handbook, 31st ed., Power Constants