Overall Equipment Effectiveness (OEE) Calculator
Calculate OEE, Availability, Performance, and Quality rates with Six Big Losses breakdown and world-class manufacturing targets.
Core Formula
OEE = Availability × Performance × Quality
Governing Standards
- SEMI E10-0304 — Equipment Reliability
- ISO 22400 — Manufacturing Operations Management KPIs
Frequently Asked Questions
What is a good OEE score?
World-class OEE is 85% or higher (Availability ~90%, Performance ~95%, Quality ~99.9%). The global average is around 60%.
What is the Hidden Factory concept in OEE?
The Hidden Factory represents the gap between current OEE and 100% — the unrealized production capacity lost to downtime, slow cycles, and defects.