How do you calculate forge die cost per part?

Multiply the forgings covered by the die cost per covered part and the tooling allocation, add the fixed setup or repair cost, then divide by the forgings covered. With 12,000 forgings at $0.85/part, 100% allocation, plus $2,500 fixed, total cost is $12,700, giving $1.0583 per part.

What is tooling cost allocation in this calculation?

It is the percentage of the variable die cost you assign to this job or customer. At 100% the full die cost loads onto these parts; below 100% you are sharing the die across multiple programs or absorbing part of the cost. In the example it is 100%, so the full $10,200 variable cost applies.

How do I estimate forgings covered by the die cost?

Use the expected die life in good forgings between re-sinks or replacement, based on the die material, part geometry, forging temperature, and historical hit counts on similar dies. Be conservative — overstating die life understates cost per part and erodes margin.

Why include a fixed setup or repair cost?

Because each die has costs that don't scale with volume — initial sinking and tryout, periodic re-sinking, weld repair, and setup labor. In the example the $2,500 fixed cost adds about $0.21 per part on top of the $0.85 variable rate, which matters on a tight quote.

What happens to cost per part if die life is shorter than expected?

It goes up, sometimes sharply. The $2,500 fixed cost spread over 12,000 forgings is about $0.21/part, but over only 6,000 forgings it becomes $0.42/part. That is why conservative die-life estimates protect you when a die wears or cracks early.

Forge die cost per part vs total die cost — which do I quote?

Quote the cost per part ($1.0583 here) because that is what loads onto each piece price. The total die cost ($12,700) is the program-level number you amortize; dividing it by the realistic forging count gives the per-part figure that belongs in the quote.

Foundry & Forging calculator

Forge Die Cost per Part Calculator

Forge die cost per part is the tooling cost amortized onto each forging a die set produces, including the variable per-part die cost and any fixed setup or repair spend. Forging estimators, tooling engineers, and cost accountants in closed-die and open-die forge shops use it to load tooling correctly into a part price rather than burying it or eating it. It matters because forge dies are expensive, wear out on a known number of hits, and must be re-sunk or replaced — so amortizing that cost over realistic die life is the difference between a profitable quote and a losing one. Getting this number right protects margin on long-running forging programs.

What this calculator does

Allocate forging die, insert, repair, and refurbishment cost across a production quantity.
Use it when tooling life and die maintenance affect quote cost for closed-die forging, trimming, coining, or upset operations.
It builds a total die-related cost from per-part die cost times covered forgings and tooling allocation, adds fixed setup or repair cost, then divides by the forgings covered to get cost per part.

Formula used

Total forge die cost per part = forgings covered by the die cost × die cost per covered part × tooling cost allocation + fixed die setup or repair cost
Forge die cost per part = total cost ÷ forgings covered by the die cost

Inputs explained

Forgings covered by the die cost: Enter planned forgings, impressions, saleable parts, or order quantity covered by the die set or repair.
Die cost per covered part: Use die set cost, insert cost, repair cost, or amortized tooling cost per planned part.
Tooling cost allocation: Enter the share of die cost assigned to this program, customer, lot, or revision.
Fixed die setup or repair cost: Add die spotting, setup, preheat, tryout, repair, weld, machining, or outside toolroom cost.

How to use the result

Use it when quoting a forging job, setting tooling amortization for a release quantity, or deciding whether to re-sink versus replace a worn die.
It assumes the die actually reaches the covered forging count; if die life falls short due to premature wear or breakage, the real cost per part rises because fixed costs spread over fewer pieces.

Current U.S. benchmarks

The producer price index for steel mill products stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The U.S. has 3,569 primary metal manufacturing establishments employing about 354,911 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate forge die cost per part? Multiply the forgings covered by the die cost per covered part and the tooling allocation, add the fixed setup or repair cost, then divide by the forgings covered. With 12,000 forgings at $0.85/part, 100% allocation, plus $2,500 fixed, total cost is $12,700, giving $1.0583 per part.
What is tooling cost allocation in this calculation? It is the percentage of the variable die cost you assign to this job or customer. At 100% the full die cost loads onto these parts; below 100% you are sharing the die across multiple programs or absorbing part of the cost. In the example it is 100%, so the full $10,200 variable cost applies.
How do I estimate forgings covered by the die cost? Use the expected die life in good forgings between re-sinks or replacement, based on the die material, part geometry, forging temperature, and historical hit counts on similar dies. Be conservative — overstating die life understates cost per part and erodes margin.
Why include a fixed setup or repair cost? Because each die has costs that don't scale with volume — initial sinking and tryout, periodic re-sinking, weld repair, and setup labor. In the example the $2,500 fixed cost adds about $0.21 per part on top of the $0.85 variable rate, which matters on a tight quote.
What happens to cost per part if die life is shorter than expected? It goes up, sometimes sharply. The $2,500 fixed cost spread over 12,000 forgings is about $0.21/part, but over only 6,000 forgings it becomes $0.42/part. That is why conservative die-life estimates protect you when a die wears or cracks early.

Last reviewed 2026-05-12.