Calibration Lab & Gauge Management worked example

Gauge Replacement Cost at 58% replacement scope approved: a worked example

Suppose replacement scope approved falls to 58%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate the budget needed to replace damaged, obsolete, worn, lost, or uneconomical gauges and to qualify the replacements for controlled use.

The inputs for this scenario

  • Gauges planned for replacement: 100 gauges (held at the documented default)
  • Average replacement cost per gauge: 45 $ / gauge (held at the documented default)
  • Replacement scope approved: 58 % (the input this scenario stresses; the baseline uses 80)
  • Fixed qualification and setup cost: 250 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable gauge purchase cost = gauges planned for replacement × average replacement cost per gauge × replacement scope approved.
  • Total gauge replacement cost works out to 2,860 $ at these inputs, and this is the headline figure for the scenario.
  • Replacement cost per planned gauge works out to 28.6 $ / piece at these inputs.
  • Variable gauge purchase cost works out to 2,610 $ at these inputs.
  • Fixed qualification and setup cost works out to 250 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where replacement scope approved sits at 80% and the headline result is 3,850 $, this scenario comes in 25.71% below the baseline at 2,860 $.
  • It computes total replacement cost as the approved share of (gauges times unit cost) plus a one-time fixed qualification and setup cost. 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 gauge replacement cost: 2,860 $ (headline result)
  • Replacement cost per planned gauge: 28.6 $ / piece
  • Variable gauge purchase cost: 2,610 $
  • Fixed qualification and setup cost: 250 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Gauge Replacement Cost calculator, set replacement scope approved to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.