Quality calculator
Yield Calculator
Measure final accepted output for a closed production cohort. Enter unique started and accepted unit counts, including successful permitted rework, and your required yield.
What this calculator does
- Compare accepted final output with started units from one closed production cohort and your yield target.
Formula used
- Final yield = final accepted units ÷ units started × 100
- Unaccepted units = units started − final accepted units
- Unaccepted share = unaccepted units ÷ units started × 100
- Target margin = final yield − target final yield
Inputs explained
- Units Started: Unique units entering the fully dispositioned production cohort.
- Final Accepted Units: Accepted cohort units after any completed permitted rework.
- Target Final Yield: Required final acceptance percentage from the production plan.
How to use the result
- Best suited to closed lot yield Review, final acceptance reconciliation.
- Open work in process makes a final yield comparison premature. Final yield does not expose the cost or frequency of rework.
Current U.S. benchmarks
- U.S. manufacturing runs at 75.7% of capacity (Federal Reserve, Aug 2026). New factory orders are up 8.5% year over year (Census).
Common questions
- Can successfully reworked units count as accepted? Yes, if they meet the final acceptance criteria. Count each unit once even if it needed several repair attempts.
- Should unfinished units be treated as lost? No, close the cohort or use a separately defined in-process measure. This final yield model assumes every started unit has a disposition.
- Why are scrap and rework not added to accepted output? Rework can be an intermediate event affecting units that later pass or fail. Adding those event counts can double-count the cohort.
- Is this the same as first-pass yield? No, final yield includes permitted recovery. First-pass yield counts only units accepted without rework, retest or other repeated processing.
Related guides
Last reviewed 2026-10-06.