Tooling, Fixtures, Dies & Mold Economics worked example

Die Cost Per Part at 63% usable share of rated die life: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop usable share of rated die life to 63%, then walk the calculation through step by step. Estimate amortized die cost per part from projected stamping volume, per-part die allocation, realized die life, and sharpening reserve.

The inputs for this scenario

  • Parts stamped over die life: 500,000 parts (held at the documented default)
  • Die cost per stamped part: 0.09 $ / part (held at the documented default)
  • Usable share of rated die life: 63 % (the input this scenario stresses; the baseline uses 88)
  • Die sharpening and regrind reserve: 4,000 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total die cost over life = parts stamped × die cost per part × die life realization + die sharpening reserve.
  • Total die cost per part cost works out to 32,350 $ at these inputs, and this is the headline figure for the scenario.
  • Die cost per part cost per unit works out to 0.06 $ / piece at these inputs.
  • Variable die cost per part cost works out to 28,350 $ at these inputs.
  • Fixed die cost per part adder works out to 4,000 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where usable share of rated die life sits at 88% and the headline result is 43,600 $, this scenario comes in 25.8% below the baseline at 32,350 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to usable share of rated die life, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It models the sharpening reserve as one fixed lump; high-tonnage or abrasive-material dies that need frequent regrinds may require a reserve that scales with hits.

Results at a glance

  • Total die cost per part cost: 32,350 $ (headline result)
  • Die cost per part cost per unit: 0.06 $ / piece
  • Variable die cost per part cost: 28,350 $
  • Fixed die cost per part adder: 4,000 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Die Cost Per Part calculator, set usable share of rated die life to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.