Throughput Yield Input Form
Enter measured production data. The calculator uses one page layout, while the fields adjust to large, medium, and mobile screens.
Formula Used
Throughput Yield = (Good Units ÷ Units Started) × 100
Rework Rate = (Reworked Units ÷ Units Started) × 100
Scrap Rate = (Scrap Units ÷ Units Started) × 100
DPU = Total Defects ÷ Units Started
DPMO = Total Defects ÷ (Units Started × Opportunities Per Unit) × 1,000,000
RTY = Product of all Stage Yields entered as decimals
How to Use This Calculator
- Enter a label for the batch, line, shift, or reporting period.
- Add total units that entered the process during that period.
- Enter the number of good units that passed without defects.
- Include reworked units and scrap units for loss analysis.
- Add total defects and opportunities per unit for DPMO.
- Optionally type stage yields like 98, 97, 99 for rolled analysis.
- Set a target yield and optional rework or scrap costs.
- Submit the form to display results above the form, then export CSV or PDF as needed.
Example Data Table
| Batch | Units Started | Good Units | Reworked | Scrap | Total Defects | Opp./Unit | Stage Yields | Throughput Yield |
|---|---|---|---|---|---|---|---|---|
| Line A Morning | 1000 | 930 | 40 | 30 | 65 | 4 | 98%, 97%, 99% | 93.00% |
| Line B Evening | 850 | 807 | 21 | 22 | 40 | 3 | 99%, 98%, 97% | 94.94% |
| Line C Trial | 620 | 566 | 28 | 26 | 51 | 5 | 96%, 95%, 98% | 91.29% |
Frequently Asked Questions
1. What does throughput yield measure?
Throughput yield measures the share of units that leave a process defect-free, compared with all units that entered it. It highlights how much clean output the process actually delivers.
2. Is throughput yield the same as first pass yield?
Not always. First pass yield focuses on passing without any correction at a step. Throughput yield often summarizes overall good output across the measured process window.
3. Why track rework separately?
Rework hides process weakness. A line may ship acceptable units yet still consume extra labor, time, tooling, and inspection effort. Separate rework tracking exposes that hidden factory cost.
4. When should I use stage yields?
Use stage yields when the process has multiple steps and you want an estimated rolled view. They help identify cumulative loss even when each individual step looks acceptable.
5. What is a good throughput yield target?
A good target depends on industry, risk, customer tolerance, and process maturity. Compare against historical performance, contractual needs, and improvement priorities before setting thresholds.
6. Why calculate DPMO too?
DPMO normalizes defects against opportunity count. That makes comparisons more consistent across products, batches, or lines with different complexity and defect exposure levels.
7. Can good units plus reworked units exceed started units?
Yes, because reworked units may already be included within the good output total. Rework represents touched units, not an extra production count. This page handles them as related measures.
8. How often should throughput yield be reviewed?
Review it by batch, shift, day, or week based on process speed and risk. Faster feedback helps teams correct assignable causes before losses become systemic.