OEE calculator with diagnostics
Calculate your Overall Equipment Effectiveness — and get a concrete diagnosis of where the capacity is lost, and what the first step is.
Adjust the values below
How much of the time is your equipment ready to produce? (Excluding planned and unplanned downtime)
Is your equipment producing at ideal speed, or does it have operational disruptions?
What share of the production consists of good-quality parts?
Your current OEE score
Operations are losing a lot of capacity — around 34 OEE points up to world class. Start with the dominant loss driver below; don’t try to lift everything at once.
Biggest loss driver: Availability
+10.2 OEE pointsMost to gain here — up to the world-class benchmark (90%).
What it typically means on the floor
- Unplanned breakdowns and machine stops
- Long changeovers between products or orders
- Waiting for material, tools or an operator
First step
Log the three most frequent stop causes for one week, and run a 5 Whys on the biggest. Attack changeover time with SMED.
5 Whys: attack the biggest stop cause →Availability
75.0%
Benchmark 90%
+10.2 OEE points to gain
Performance
80.0%
Benchmark 95%
+9.6 OEE points to gain
Quality
85.0%
Benchmark 99.9%
+8.9 OEE points to gain
The diagnosis is calculated locally in your browser — your numbers never leave your machine. Benchmark: S. Nakajima, Introduction to TPM (1988). Contact Prozanta for a full OEE analysis on the floor.
How do you compare with others?
Contribute your three numbers anonymously to the OEE Index. We store only the industry and the factors — no name, no company, no IP. In return, you can see where manufacturing actually stands.
See the benchmark without contributing →Want to see the whole picture?
Let Prozanta carry out a complete OEE analysis on the floor and uncover the concrete improvement opportunities.
Book a clarification call