NPI, DFM/DFA & Engineering Change worked example

NPI Launch Cost at 58% effort charged to launch: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop effort charged to launch to 58%, then walk the calculation through step by step. Estimate the total cost to launch a new product into production, combining cross-functional engineering effort with one-time tooling investment.

The inputs for this scenario

  • Launch Engineering Hours: 1,800 hrs (held at the documented default)
  • Blended Engineering Rate: 95 $/hr (held at the documented default)
  • Effort Charged to Launch: 58 % (the input this scenario stresses; the baseline uses 80)
  • Tooling & Fixture Spend: 45,000 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Launch cost = engineering hours x blended rate x effort charged% + tooling investment.
  • Total npi launch cost works out to 144,180 $ at these inputs, and this is the headline figure for the scenario.
  • Npi launch cost per unit works out to 80.1 $ / piece at these inputs.
  • Variable npi launch cost works out to 99,180 $ at these inputs.
  • Fixed npi launch cost adder works out to 45,000 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where effort charged to launch sits at 80% and the headline result is 181,800 $, this scenario comes in 20.69% below the baseline at 144,180 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to effort charged to launch, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes the share of engineering effort you charge to launch is accurate; loading too much sustaining or warranty work into the launch bucket inflates the number and distorts amortization.

Results at a glance

  • Total npi launch cost: 144,180 $ (headline result)
  • Npi launch cost per unit: 80.1 $ / piece
  • Variable npi launch cost: 99,180 $
  • Fixed npi launch cost adder: 45,000 $

Run it with your numbers

  • To rerun this with your own numbers, open the live NPI Launch Cost calculator, set effort charged to launch to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.