OEE Calculator

This calculator works out overall equipment effectiveness from one period of production. Enter the planned production time, the unplanned stop time, the units produced, how many were good and the machine's ideal speed, and it returns availability, performance, quality and the OEE they multiply to. It also splits the planned time into the minutes lost to stops, to running slow and to making rejects, so the three percentages become three blocks of time. Give it the total available time as well and it adds TEEP. A second tab takes availability, performance and quality that have already been measured and just multiplies them out.

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Ideal Speed Measured In

Planned time, stops, counts and the machine's ideal speed. Everything else follows from those.

The scheduled time, with breaks and unscheduled hours already removed. An eight hour shift with an hour of breaks is 420 minutes.
Breakdowns, changeovers, material starvation: any stop inside the planned time.
Everything that came off the machine, good and bad together.
Units that passed first time. Anything reworked counts as a reject here.
The fastest the machine is designed to run, in the unit chosen below.
Every minute in the period, including unscheduled ones. Fill this in for TEEP. A full day is 1440.
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When the three factors are already reported and only the product is wanted.

Above 100 is accepted so a reported figure can be entered as it stands, but it means the ideal cycle time behind it is too slow.
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