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OEE Calculator — Overall Equipment Effectiveness

Enter your production data to calculate OEE — the gold-standard metric for measuring manufacturing performance. World-class benchmarks built in.

Production data

Total scheduled run time for the period (minutes).
min
All unplanned stops and changeover time (minutes).
min
Theoretical minimum time to produce one unit (minutes).
min
All units produced including rejects.
units
Units that passed quality checks without rework.
units
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Your OEE

Live
OEE
77.3%
Typical — room to improve
Availability
90.6%
World-class ≥ 85%
Performance
89.7%
World-class ≥ 85%
Quality
95.1%
World-class ≥ 85%
OEE = 90.6% × 89.7% × 95.1% = 77.3%
Availability

Availability

How much of planned production time was the equipment actually running? Every unplanned stop and changeover that runs long reduces this.

Run time ÷ Planned time × 100
Performance

Performance

When running, how fast is it going vs. its theoretical max? Micro-stops and slow cycles drag this down without triggering a "downtime" event.

(Total count × Ideal cycle time) ÷ Run time × 100
Quality

Quality

Of everything produced, how much was good on the first pass? Rework and scrap both count as quality losses.

Good count ÷ Total count × 100

OEE benchmarks by industry

World-class OEE is widely cited at 85%. Most plants land between 40–60% when they measure honestly for the first time.

Discrete manufacturing
Typical: 55–65%
World-class: 85%
Process manufacturing
Typical: 65–75%
World-class: 85%
Food & beverage
Typical: 50–60%
World-class: 85%
Pharmaceuticals
Typical: 70–80%
World-class: 90%

Stop guessing. Start measuring OEE.

AssetOS tracks availability, performance, and quality across every asset — live, not once a month from a spreadsheet.

OEE · FAQ

What is a good OEE score?+

World-class OEE is typically considered 85% or above. Most manufacturers measure between 40–60% when they first track it accurately. Anything below 65% suggests significant improvement opportunities in availability, performance, or quality.

What is the difference between OEE and availability?+

Availability is one of three OEE components — it measures uptime against planned production time. OEE multiplies Availability × Performance × Quality. A machine can have 95% availability but still have poor OEE if it runs below speed or produces defective output.

How do I improve my OEE score?+

Target your lowest component first. If Availability is low, investigate unplanned breakdowns and excessive planned downtime. If Performance is low, look at speed losses and minor stoppages. If Quality is low, trace reject root causes and adjust process parameters.

Does OEE apply outside manufacturing?+

OEE originated in manufacturing but applies to any asset or process with planned run time: food processing, packaging, printing, pharmaceutical production, and data centres all use OEE variants. The formula is the same; what counts as a quality loss or speed loss is industry-specific.

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