ERP & MRP Planning worked example

Manufacturing Lead Time with queue and wait time of 2 days: a worked example

Suppose queue and wait time falls to 2 days. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate total manufacturing lead time from queue, setup/run, inspection, and move or release time.

The inputs for this scenario

  • Queue and wait time: 2 days (the input this scenario stresses; the baseline uses 4)
  • Setup and run time: 6 days (held at the documented default)
  • Inspection, test, or hold time: 2 days (held at the documented default)
  • Move, release, and staging time: 1 days (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Manufacturing lead time = queue time + setup/run time + inspection/hold time + move/release time.
  • Total manufacturing lead time works out to 11 days at these inputs, and this is the headline figure for the scenario.
  • Queue and wait time works out to 2 days at these inputs.
  • Setup and run time works out to 6 days at these inputs.
  • Inspection, move, and release time works out to 3 days at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where queue and wait time sits at 4 days and the headline result is 13 days, this scenario comes in 15.38% below the baseline at 11 days.
  • It sums queue/wait, setup and run, inspection/hold, and move/release time into a single internal manufacturing lead time in days. 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

  • Total manufacturing lead time: 11 days (headline result)
  • Queue and wait time: 2 days
  • Setup and run time: 6 days
  • Inspection, move, and release time: 3 days

Run it with your numbers

  • To rerun this with your own numbers, open the live Manufacturing Lead Time calculator, set queue and wait time to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.