FactoryOS

Free OEE Calculator for Manufacturing

Calculate your Overall Equipment Effectiveness (OEE) and identify production improvement opportunities

Enter your production data

Your OEE Results

Enter your production data and click Calculate

Track OEE Automatically in FactoryOS

Stop calculating OEE manually. FactoryOS tracks it in real-time across all your production lines.

What is OEE?

Overall Equipment Effectiveness (OEE) is the gold standard for measuring manufacturing productivity. It identifies the percentage of planned production time that is truly productive. An OEE score of 100% means you are manufacturing only good parts (Quality), as fast as possible (Performance), with no downtime (Availability).

OEE = Availability × Performance × Quality

Why OEE Matters for Small Manufacturers

For small shops, every hour of machine time counts. OEE helps you find hidden losses in your production process — whether it is unplanned downtime, slow cycles, or quality defects. Even a 5% improvement in OEE can significantly impact your bottom line.

How to Improve Your OEE Score

  • Track downtime causes to reduce unplanned stops
  • Implement preventive maintenance schedules
  • Standardize setup and changeover procedures
  • Add quality checkpoints early in the process
  • Use real-time dashboards to spot issues as they happen

Learn more about OEE and MES

Manufacturing Execution System Software Guide

Learn how MES connects work orders, operators, quality, and production data.

Read resource

What Is MES Software?

Get a practical explanation of MES for small manufacturers and job shops.

Read resource

MES vs. Spreadsheets

Compare real-time manufacturing software with spreadsheet-based tracking.

Read resource