Mold Amortization Calculator

Calculate tooling and maintenance cost allocated to each part. This practical tool is an engineering estimate—validate decisions against machine, material, mold, and process data.

Formula and method

Amortization = (tooling + lifetime maintenance) ÷ expected life.

Inputs and units

Enter measured or specified values in the displayed units. Keep units consistent; results are rounded for practical planning. This first release uses the displayed engineering units rather than a unit-switcher.

Worked example

($85,000 tooling + $10,000 maintenance) ÷ 500,000 parts = $0.19 per part

Use this to allocate a defined tooling investment

Spread a stated tooling and lifetime-maintenance amount over an expected production life. Recalculate when volume or maintenance assumptions change.

What changes the result most

Tooling scope, life, validation cost, maintenance, engineering changes, and actual output.

Common mistake

Hiding one-time qualification, fixtures, or design changes inside an assumed per-part amount.

Interpretation, assumptions, and limitations

This tool provides an estimate for planning and education. It does not replace machine maker limits, material data sheets, mold trials, cavity-pressure data, process validation, or qualified engineering review.

FAQ

Can I use this as a final production setting?

No. Confirm with validated process data and the applicable machine and material documentation.

Why can the real result differ?

Geometry, melt behavior, pressure loss, material lot, temperature, cooling layout, and operating practice can materially affect results.