How do you calculate extrusion cost per pound?

Multiply finished weight by the conversion cost and yield factor, add setup and changeover cost, then divide by finished weight. With 10,000 lb at $0.38/lb, 96% yield and $650 setup, the run is $4,298 or $0.4298 per pound.

What is a typical conversion cost per pound for extrusion?

It varies widely, but many pipe and profile lines run $0.25-$0.50 per pound of conversion, while thin blown film and specialty profiles can exceed that. Benchmark against your own standards rather than a single industry figure.

Why does setup cost matter so much on short runs?

Setup is a fixed amount spread over the run. The $650 here adds only $0.065/lb across 10,000 lb, but on a 1,000 lb run it would add $0.65/lb, often doubling the effective cost per pound.

What does the yield factor do to the cost?

The yield or chargeable factor scales the conversion cost. At 96% the variable conversion here is $3,648; a lower yield or higher chargeable factor above 100% would raise it to reflect scrap and rework you must recover.

Cost per pound vs cost per foot for pipe?

Cost per pound is resin- and machine-neutral and easy to benchmark, while cost per foot ties directly to what the customer buys. Convert between them using pipe weight per foot for the specific dimension.

How do I reduce extrusion cost per pound?

Run longer jobs to dilute setup, raise line speed within gauge tolerance, cut scrap to improve yield, and trim energy and maintenance inside the conversion rate.

Plastics Extrusion - Pipe, Film & Profile calculator

Extrusion Cost Per Pound Calculator

Extrusion cost per pound is the workhorse costing metric in pipe, film, and profile plants, expressing the conversion cost to turn resin into salable product on a per-pound basis. It captures the variable conversion cost (labor, energy, maintenance, scrap allowance) scaled by yield, plus the setup and changeover cost of the run. Estimators and plant managers live by this number because it is how extrusion work is quoted and how one line or product is benchmarked against another. Since resin is usually a pass-through, the conversion cost per pound is where a shop actually competes and where margin is won or lost.

What this calculator does

Build a run cost per pound from finished pounds, conversion cost per pound, yield factor, and fixed setup or changeover cost.
Use it when quoting pipe, film, sheet, or profile jobs and comparing resin, labor, energy, and setup assumptions.
It computes total run cost as finished weight times conversion cost times a yield factor, plus setup and changeover cost, then divides by finished weight to give cost per pound.

Formula used

Extrusion Cost Per Pound = finished production weight × conversion cost × yield or chargeable factor + setup and changeover cost
Per-unit cost = total cost ÷ finished production weight

Inputs explained

Finished production weight:
Conversion cost rate:
Yield or chargeable factor:
Setup and changeover cost:

How to use the result

Use it to quote a run, set standard conversion rates, or compare the economics of long versus short jobs.
It treats conversion cost as a single rate; if labor, energy, and maintenance move independently you should cost them separately and sum before using this.

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 producer price index for aluminum mill shapes stands at 404.859 (BLS, May 2026), up 36.8% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The producer price index for plastic resins and materials stands at 319.371 (BLS, May 2026), up 19.5% 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 extrusion cost per pound? Multiply finished weight by the conversion cost and yield factor, add setup and changeover cost, then divide by finished weight. With 10,000 lb at $0.38/lb, 96% yield and $650 setup, the run is $4,298 or $0.4298 per pound.
What is a typical conversion cost per pound for extrusion? It varies widely, but many pipe and profile lines run $0.25-$0.50 per pound of conversion, while thin blown film and specialty profiles can exceed that. Benchmark against your own standards rather than a single industry figure.
Why does setup cost matter so much on short runs? Setup is a fixed amount spread over the run. The $650 here adds only $0.065/lb across 10,000 lb, but on a 1,000 lb run it would add $0.65/lb, often doubling the effective cost per pound.
What does the yield factor do to the cost? The yield or chargeable factor scales the conversion cost. At 96% the variable conversion here is $3,648; a lower yield or higher chargeable factor above 100% would raise it to reflect scrap and rework you must recover.
Cost per pound vs cost per foot for pipe? Cost per pound is resin- and machine-neutral and easy to benchmark, while cost per foot ties directly to what the customer buys. Convert between them using pipe weight per foot for the specific dimension.

Last reviewed 2026-05-12.