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OEE Availability Performance & Quality Calculator
Separate equipment losses into availability, performance, and quality for one comparable production stream and period.
Overall equipment effectiveness calculator
Separate equipment losses into availability, performance, and quality for one comparable production stream and period.
YOUR RESULT LIVE CALCULATION
Overall equipment effectiveness
71.46% OEE
FIRST-PASS GOOD OUTPUT BASIS- Availability
- 87.5%
- Performance
- 83.33%
- First-pass quality
- 98%
- Run time
- 420 minutes
- First-pass failed / reworked units
- 14
One production stream and period. Undefined component ratios show N/A; no good output gives zero overall OEE.
BEHIND THE NUMBER
How the calculation works
Run time is planned production time less stops. Convert minutes to seconds before using the ideal cycle. Good units pass the process first time without rework. The default example has 87.5% availability, 83.33% performance, and 98% quality, giving 71.46% OEE. Undefined component ratios display N/A rather than inventing a denominator.
A = run / planned time; P = ideal cycle x total / run time; Q = good / total; OEE = good x ideal cycle / planned time
When this calculation helps
OEE combines availability, performance, and quality for the same equipment and period. Use the ideal cycle time for the product being measured and distinguish planned production time from stopped time.
Check the interpretation
A single percentage can hide whether loss comes from downtime, slow cycles, or rejects. Inspect the components before choosing an intervention. Incompatible time bases or an outdated ideal cycle can create misleading performance above 100%.
Use compatible counts, time boundaries, and a valid ideal cycle for one production stream. Performance above 100% is rejected as inconsistent input. Exclude non-production periods before entering planned production time. This does not rank suppliers or specify a universal target.
Vorne OEE calculation methodologyGood to know
Does reworked output count as first-pass good?
No. Units requiring rework are a first-pass quality loss even if later accepted.
Why is a component N/A with zero production?
Quality has no denominator when no units are made. Performance also has no denominator when run time is zero. Overall OEE remains zero because no good ideal-cycle time was produced.