Quality & Metrology worked example

Inspection Cost Per Part with total inspection cost of 230 $: a worked example

Suppose total inspection cost falls to 230 $. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate inspection cost per part by dividing total inspection cost by the number of parts inspected.

The inputs for this scenario

  • Total inspection cost: 230 $ (the input this scenario stresses; the baseline uses 450)
  • Parts inspected: 600 parts (held at the documented default)
  • Reporting conversion factor: 1 x (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Inspection cost per part = total inspection cost รท parts inspected.
  • Inspection cost per part works out to 0.38 $ / part at these inputs, and this is the headline figure for the scenario.
  • Raw ratio works out to 0.38 value at these inputs.
  • Conversion factor works out to 1 x at these inputs.
  • Parts inspected works out to 600 value at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where total inspection cost sits at 450 $ and the headline result is 0.75 $ / part, this scenario comes in 48.89% below the baseline at 0.38 $ / part.
  • It computes the total inspection cost divided by the number of parts inspected, then scales it by a reporting conversion factor to capture documentation and data-handling overhead. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Inspection cost per part: 0.38 $ / part (headline result)
  • Raw ratio: 0.38 value
  • Conversion factor: 1 x
  • Parts inspected: 600 value

Run it with your numbers

  • To rerun this with your own numbers, open the live Inspection Cost Per Part calculator, set total inspection cost to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.