How to use this calculator
- Enter all time values using the units shown.
- Use counts from the same production period.
- Select Calculate and review the main result plus supporting metrics.
- Change one assumption at a time to compare operating scenarios.
Measure overall equipment effectiveness for the packaging line without hiding the three underlying losses. The calculator derives availability from planned time and downtime, performance from ideal cycle time and total count, and quality from good count. The combined OEE result helps distinguish whether time loss, speed loss, or quality loss contributes most to the current run.
OEE is the share of planned production time converted into good output at the ideal rate. Its components keep distinct loss types visible.
Performance above 100% usually indicates an inaccurate ideal cycle time, count, or time boundary; review the inputs instead of treating it as extra effectiveness.
With 480 planned minutes, 40 stopped minutes, a 0.5-minute ideal cycle, 800 total units, and 760 good units: availability is 91.67%, performance is 90.91%, quality is 95%, and OEE is 79.17%.
Use the time boundary defined by the inputs: subtract planned excluded time where requested and keep all values within the same production period.
Yes, but use a weighted or representative cycle only when the product mix is stable; separate runs are clearer when cycle times differ materially.
Count first-pass good output where the calculator requests good units, and track rework separately so repeated processing is not hidden.
Check time boundaries, unit conversions, whether micro-stops are included, and whether the report uses total units or first-pass good units.
It can support scenario planning, but validate the entered times and output assumptions against representative production data before making commitments.
| Factor | Numerator | Denominator |
|---|---|---|
| Availability | Run time | Planned time |
| Performance | Ideal cycle × total count | Run time |
| Quality | Good count | Total count |