OEE & Factory Performance worked example

Planned Downtime Ratio at 17% target planned downtime ratio: a worked example

This scenario runs the planned downtime ratio calculation on the strong side: 17% target planned downtime ratio, with every other input held at its documented default. Use it to track planned downtime ratio against target in OEE & Factory Performance.

The inputs for this scenario

Planned downtime minutes: 60 min (unchanged)
Total scheduled production minutes: 480 min (unchanged)
Target planned downtime ratio: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

Applying the documented formula (Planned downtime ratio = planned downtime ÷ total scheduled time × 100) to the inputs above produces each figure below.
At this operating point the engine returns 12.5 % for planned downtime ratio, the number this scenario is built around.
At this operating point the engine returns 4.5 points for gap to target.
At this operating point the engine returns 60 count for planned downtime.
At this operating point the engine returns 480 count for total scheduled time.

How this compares with the baseline

Against the tool's baseline example, where target planned downtime ratio sits at 15% and the headline result is 12.5 %, this scenario lands almost exactly on the baseline at 12.5 %.
Use it during shift reviews or capacity studies to see how much scheduled time is intentionally given up and whether it is trending toward your target. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

Planned downtime ratio: 12.5 % (headline result)
Gap to target: 4.5 points
Planned downtime: 60 count
Total scheduled time: 480 count

Run it with your numbers

Every input above is editable in the live Planned Downtime Ratio calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.