Robotics & Automation worked example

Robot OEE at 99% performance factor: a worked example

What does the result look like when performance factor reaches 99%? The full calculation is worked below with real intermediate numbers. Use it for weekly cell OEE reporting, capital ROI updates, and continuous improvement reviews when the OEE number has to come from clean inputs.

The inputs for this scenario

  • Robot operating time: 420 hr (unchanged)
  • Planned production time: 480 hr (unchanged)
  • Performance factor: 99 % (raised for this scenario; the documented default is 95)
  • Quality factor: 98 % (unchanged)

Working through the calculation

  • Applying the documented formula (Robot OEE availability = robot operating time / planned production time) to the inputs above produces each figure below.
  • At this operating point the engine returns 84.89 % OEE for robot oee, 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 performance factor.
  • At this operating point the engine returns 98 % for quality factor.

How this compares with the baseline

  • Against the tool's baseline example, where performance factor sits at 95% and the headline result is 81.46 % OEE, this scenario comes in 4.21% above the baseline at 84.89 % OEE.
  • A figure at this level is achievable when performance factor is genuinely sustained, not just peaked for a shift. It treats the robot as the unit of analysis; if the robot idles because an upstream station starved it, that downtime lands on robot availability even though the root cause is elsewhere.

Results at a glance

  • Robot OEE: 84.89 % OEE (headline result)
  • Base availability: 87.5 %
  • Performance factor: 99 %
  • Quality factor: 98 %

Run it with your numbers

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

Last reviewed 2026-05-12.