OEE & Factory Performance worked example

Line Efficiency at 65% target efficiency: a worked example in oee & factory performance

Here is what the math looks like when conditions slip. We hold every other input steady and drop target efficiency to 65%, then walk the calculation through step by step. Calculate line efficiency for OEE & Factory Performance — actual good output against demonstrated capacity.

The inputs for this scenario

  • Actual good output: 850 units (held at the documented default)
  • Demonstrated capacity: 1,000 units (held at the documented default)
  • Target efficiency: 65 % (the input this scenario stresses; the baseline uses 90)

Working through the calculation

  • The calculation starts from the formula this tool documents: Line efficiency = actual good output ÷ demonstrated capacity.
  • Line efficiency works out to 85 % at these inputs, and this is the headline figure for the scenario.
  • Gap to target works out to -20 points at these inputs.
  • Actual good output works out to 850 value at these inputs.
  • Demonstrated capacity works out to 1,000 value at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target efficiency sits at 90% and the headline result is 85 %, this scenario lands almost exactly on the baseline at 85 %.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to target efficiency, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It only counts good output against demonstrated capacity, so it will not tell you whether the loss came from downtime, slow cycles, or scrap — pair it with OEE for root cause.

Results at a glance

  • Line efficiency: 85 % (headline result)
  • Gap to target: -20 points
  • Actual good output: 850 value
  • Demonstrated capacity: 1,000 value

Run it with your numbers

  • To rerun this with your own numbers, open the live Line Efficiency calculator, set target efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.