Product Compliance, Labeling & Certification worked example

UL Test Cost at 61% samples passing first-round testing: a worked example

This worked example runs the ul test cost numbers for a tougher week than the baseline: 61% samples passing first-round testing instead of the typical 85%. Estimate the total cost of taking a product through UL listing, including lab fees, sample testing and follow-up service charges.

The inputs for this scenario

  • Test samples submitted to lab: 6 samples (held at the documented default)
  • UL lab fee per sample: 4,200 $/sample (held at the documented default)
  • Samples passing first-round testing: 61 % (the input this scenario stresses; the baseline uses 85)
  • File setup and follow-up service fee: 5,500 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total UL cost = samples x lab fee per sample x (first-round pass % / 100) + file and follow-up fee.
  • Total ul test cost works out to 20,872 $ at these inputs, and this is the headline figure for the scenario.
  • Ul test cost per unit works out to 3,479 $ / piece at these inputs.
  • Variable ul test cost works out to 15,372 $ at these inputs.
  • Fixed ul test cost adder works out to 5,500 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where samples passing first-round testing sits at 85% and the headline result is 26,920 $, this scenario comes in 22.47% below the baseline at 20,872 $.
  • Use it during early product costing, supplier quoting, or when comparing testing a single construction versus multiple variants under one UL file. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Total ul test cost: 20,872 $ (headline result)
  • Ul test cost per unit: 3,479 $ / piece
  • Variable ul test cost: 15,372 $
  • Fixed ul test cost adder: 5,500 $

Run it with your numbers

  • To rerun this with your own numbers, open the live UL Test Cost calculator, set samples passing first-round testing to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.