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Economic Production Quantity (EPQ) Calculator

Format: Excel file (.xlsx)Free
The Problem

The EOQ formula is built for purchased items — when something is manufactured in-house and enters inventory gradually, that same formula overstates the ideal batch size.

Calculate the optimal internal production batch size, accounting for gradual output rather than instant delivery.

Features
  • EPQ calculated with the gradual-replenishment formula
  • Number of production runs per year
  • Expected maximum inventory level
Who It's For

Production planners and plant managers

Related Domain: Production Planning Excellence