OEE & Factory Performance worked example

OEE Calculator at 99% performance: a worked example

Push performance up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when oee in oee and factory performance is being reviewed for OEE or asset utilization in oee and factory performance.

The inputs for this scenario

  • Operating (run) time: 420 min (unchanged)
  • Planned production time: 480 min (unchanged)
  • Performance: 99 % (raised for this scenario; the documented default is 92)
  • Quality (first-pass yield): 98 % (unchanged)

Working through the calculation

  • Applying the documented formula (OEE = availability × performance factor × quality factor) to the inputs above produces each figure below.
  • At this operating point the engine returns 84.89 % for effective oee availability, the number this scenario is built around.
  • At this operating point the engine returns 87.5 % for base availability.
  • At this operating point the engine returns 99 % for oee performance factor.
  • At this operating point the engine returns 98 % for oee quality factor.

How this compares with the baseline

  • Against the tool's baseline example, where performance sits at 92% and the headline result is 78.89 %, this scenario comes in 7.61% above the baseline at 84.89 %.
  • It computes OEE as availability (uptime ÷ planned available time) multiplied by your performance and quality factors. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Effective OEE availability: 84.89 % (headline result)
  • Base availability: 87.5 %
  • OEE performance factor: 99 %
  • OEE quality factor: 98 %

Run it with your numbers

  • Every input above is editable in the live OEE Calculator calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.