How do you calculate production trial cost?

Multiply trial hours by the loaded run rate by the non-saleable share, then add materials and scrap. For 40 hours at $320/hr, 85% non-saleable, plus $6,000 materials, the total is $16,880.

Why only charge part of the trial hours to trial?

Some trial output is saleable, so only the non-saleable fraction is a true trial cost. At 85% non-saleable, $10,880 of the raw $12,800 run cost is charged to the trial.

What's a good non-saleable share for a first trial?

For an early process-validation trial, 80-100% is realistic because little output passes. For a late confirmation run on a near-ready line, 30-50% may be fair as most parts become sellable.

What is cost per trial hour good for?

It lets you compare trials of different lengths and set a budget ceiling. Here each trial hour costs $422, so a 60-hour trial would run about $25,000 before extra material.

What belongs in the loaded run rate?

Direct labor, machine burden, allocated overhead, and support staffing for the line during the trial. The $320/hr default reflects a mid-complexity manufacturing cell running fully staffed.

Variable vs fixed trial cost — what's the split?

Variable cost ($10,880) scales with trial hours and rate; fixed cost is the $6,000 materials-and-scrap adder that stands regardless of run length. Extending the trial only grows the variable side.

Production Ramp, Scale-Up & Launch Readiness calculator

Production Trial Cost Calculator

Production trial cost captures the real spend of running a trial or pilot build on a live line before full production. Launch engineers and cost estimators use it to budget for pre-production trials, defend the launch line item, and decide how many trial hours a program can justify. The metric recognizes that not every trial hour is a dead loss — some produces saleable output — so it charges only the non-saleable share to trial, then adds trial-specific material and scrap. The result gives both a total and a cost-per-trial-hour figure to compare against the value the trial de-risks.

What this calculator does

Estimate the cost of a pre-production trial run used to prove out tooling, process, and quality before full ramp.
Use it when planning a process validation or first-article trial and you need to budget the burned hours and scrapped material before committing the run.
It multiplies trial hours by the fully loaded run rate and the non-saleable share, then adds trial materials and scrapped parts to get total trial cost and cost per trial hour.

Formula used

Production trial cost = trial run hours x loaded run rate x trial-charged share + materials and scrap
Cost per trial hour = production trial cost / trial run hours

Inputs explained

Trial run hours on the line:
Fully loaded trial run rate:
Share of hours charged to trial, not saleable:
Trial materials and scrapped parts:

How to use the result

Use it when budgeting a pre-production trial, pilot build, or process validation run to size the launch cost line.
The non-saleable share is an estimate; early trials often yield little sellable product, so a low share can badly understate cost. It also excludes engineering time spent analyzing the trial unless folded into the loaded rate.

Common questions

How do you calculate production trial cost? Multiply trial hours by the loaded run rate by the non-saleable share, then add materials and scrap. For 40 hours at $320/hr, 85% non-saleable, plus $6,000 materials, the total is $16,880.
Why only charge part of the trial hours to trial? Some trial output is saleable, so only the non-saleable fraction is a true trial cost. At 85% non-saleable, $10,880 of the raw $12,800 run cost is charged to the trial.
What's a good non-saleable share for a first trial? For an early process-validation trial, 80-100% is realistic because little output passes. For a late confirmation run on a near-ready line, 30-50% may be fair as most parts become sellable.
What is cost per trial hour good for? It lets you compare trials of different lengths and set a budget ceiling. Here each trial hour costs $422, so a 60-hour trial would run about $25,000 before extra material.
What belongs in the loaded run rate? Direct labor, machine burden, allocated overhead, and support staffing for the line during the trial. The $320/hr default reflects a mid-complexity manufacturing cell running fully staffed.

Last reviewed 2026-05-12.