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Profitability Analysis.
Analyze the financial viability of your injection molding project. Calculate amortized mold costs, gross margins, ROI, and breakeven volume before committing to tooling.
Free, no signupBuilt by the engineers who run the programsReviewed October 2026
Injection Molding Profitability Calculator
Understanding the numbers.
Amortized Mold Cost
The mold cost spread across all parts over the mold's lifetime. Higher volumes and longer mold life reduce this per-part adder significantly.
Gross Margin
The percentage of selling price that represents profit after deducting all production and amortized mold costs. Target 40%+ for healthy margins.
Return on Investment (ROI)
Total lifetime profit as a percentage of total investment (mold + production costs). Higher ROI means better use of capital.
Breakeven Volume
The number of parts you need to sell before the mold investment is recovered. Lower is better. Compare this to your first year volume projection.
Those margins could look even better with offshore tooling. See the China vs USA cost comparison, then size your program with the RFQ Builder, Project Timeline, or Clamp Force Calculator.
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