Free tool · OEE

OEE calculator

Enter the numbers from one shift or run. Everything is computed in your browser — nothing is sent unless you choose to email yourself the result.

Your shift

Scheduled time the line was meant to run, in minutes (e.g. an 8 h shift = 480).
Total unplanned stop time in minutes — breakdowns, changeovers, starving, blocking.
The fastest sustainable time to make one good piece, in seconds.
All pieces produced (good + bad).
Scrap + rework.

Your OEE

world-class is 85% · typical discrete plant ≈ 60%
Availability run ÷ planned
Performance speed vs ideal
Quality good ÷ total

Email my result + the free guide

Get your OEE breakdown and our plain-English guide “Simulation & the money it finds” — how a line simulation turns productivity into profit, with the financial-return math worked out. Free.

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