What does scope included mean?

It is the share of the purchased weight this job or cost center carries. A 96% scope on 185 lb includes 177.6 lb in the variable cost, and the remaining 7.4 lb is charged elsewhere.

Why does cost per pound differ from the purchase price?

Freight and qualification are added after the variable cost, so the blended cost per pound is above the purchase price. On the defaults the purchase price is 68 dollars per pound and the blended figure is 69.33 dollars per pound.

Should I include scrap in this cost?

No. This page prices the material a job is charged for. Trim and prepreg scrap are priced separately, because scrap weight leaves the job but its cost still needs tracking.

When is cost per pound blank?

When the weight is zero, because a cost per pound has no population to divide by. The total still shows the fixed freight and qualification adder, so enter a weight and rerun.

Composites, Fiberglass & Advanced Materials calculator

Carbon Fiber Material Cost Calculator

Total the delivered carbon fiber spend for a job or lot from weight, purchase price and the share of scope counted. Freight and qualification add a fixed amount, so the blended cost per pound rises when the lot is small.

What this calculator does

Carbon fiber material spend from weight, purchase price and included scope, with freight added and cost per pound shown.

Formula used

Variable material cost = weight × purchase cost per pound × scope included ÷ 100
Total material cost = variable material cost + freight and qualification cost
Material cost per pound = total material cost ÷ weight

Inputs explained

Carbon Fiber Weight: Net carbon fiber weight received, from the packing list.
Purchase Cost: Delivered purchase price per pound, from the supplier invoice.
Scope Included: Share of the lot this job or cost center carries.
Freight and Qualification Cost: Fixed cold-chain freight, qualification and handling adder.

How to use the result

Best suited to costing a prepreg lot, comparing two carbon suppliers, splitting a lot across jobs.
Cold-chain packaging, dry ice and expedite premiums belong in the fixed adder. Cost per pound is blank when weight is zero, because no population exists. Scrap and trim are priced by Prepreg Scrap Cost and Trim Scrap Cost.

Current U.S. benchmarks

The producer price index for plastic resins and materials stands at 280.569 (BLS, Aug 2026), up 6.6% from a year earlier. Quotes priced off last quarter's material cost miss this move.
Steel mill PPI stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. New factory orders are up 8.5% year over year (Census).

Common questions

What does scope included mean? It is the share of the purchased weight this job or cost center carries. A 96% scope on 185 lb includes 177.6 lb in the variable cost, and the remaining 7.4 lb is charged elsewhere.
Why does cost per pound differ from the purchase price? Freight and qualification are added after the variable cost, so the blended cost per pound is above the purchase price. On the defaults the purchase price is 68 dollars per pound and the blended figure is 69.33 dollars per pound.
Should I include scrap in this cost? No. This page prices the material a job is charged for. Trim and prepreg scrap are priced separately, because scrap weight leaves the job but its cost still needs tracking.
When is cost per pound blank? When the weight is zero, because a cost per pound has no population to divide by. The total still shows the fixed freight and qualification adder, so enter a weight and rerun.

Last reviewed 2026-10-01.