OEE calculator (overall equipment effectiveness)
Availability × performance × quality: the real efficiency of a machine or production line.
How it works
Availability = (planned − downtime) / planned. Performance = (parts × ideal cycle time) / run time. Quality = good / total. 85% OEE is considered world-class.
Results are for guidance only and do not replace professional advice.
Worked example
With the default values:
- Planned production time (minutes)480
- Downtime (breakdowns, changeovers) in minutes47
- Ideal cycle time (seconds per part)30
- Parts produced760
- Good parts736
you get:
- OEE76.7 %
- Availability90.2 %
- Performance87.8 %
- Quality96.8 %
Frequently asked questions
How does the “OEE calculator” tool work?
Availability = (planned − downtime) / planned. Performance = (parts × ideal cycle time) / run time. Quality = good / total. 85% OEE is considered world-class.
What do I need to enter?
Just fill in: planned production time, downtime, ideal cycle time, parts produced, good parts. The result updates as you type.
Can you give an example?
Planned production time (minutes): 480; Downtime (breakdowns, changeovers) in minutes: 47; Ideal cycle time (seconds per part): 30; Parts produced: 760; Good parts: 736 → OEE: 76.7 %; Availability: 90.2 %.
Is this calculator free, and is my data private?
Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.