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Logistics & production

Overall equipment effectiveness Calculator

Separate manufacturing availability, speed performance and first-pass quality. This free overall equipment effectiveness calculator shows the calculation and its assumptions so you can compare your own figures.

How the overall equipment effectiveness calculation works

OEE = availability × performance × quality. Performance compares ideal cycle production time with actual run time.

Planned non-production is excluded from planned time. A raw performance over 100% triggers a cycle-time review and is capped in OEE.

Using this calculator

  1. Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
  2. Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
  3. Review oee percent and availability percent and performance percent and quality percent, then read the stated assumptions and eligibility conditions before using the result.

Worked example

This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.

See example inputs
Planned production time (minutes)
480
Unplanned downtime (minutes)
60
Ideal cycle time per unit (seconds)
30
Total units produced
700
First-pass good units
665
Oee Percent
69.27%
Availability Percent
87.5%
Performance Percent
83.33%
Quality Percent
95%
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