Yield Rate Calculator

Work out yield rate instantly with clear inputs, formula shown and shareable results.

About Yield Rate Calculator

Yield rate counts everything that eventually ships as good, including units rescued by rework. First pass yield counts only units that were right the first time, and the gap between the two is the hidden cost of quality.

Formulas

Yield rate

Yield % = Good units / Units started x 100

First pass yield

FPY % = (Good units - Reworked units) / Units started x 100

Worked example

With the default values below, Yield Rate Calculator returns Yield rate of 94.70%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Units started: 5,000
Good units at the end: 4,735
Units that passed only after rework: 180

Results

Yield rate: 94.70%
First pass yield: 91.10%
Units scrapped: 265
Scrap rate: 5.30%

Step by step

1Values used
2Yield rate
3First pass yield
4Yield rate= 94.70
5First pass yield= 91.10
6Units scrapped= 265
7Scrap rate= 5.30

Assumptions and limits

The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why does first pass yield matter more?

Because rework consumes capacity, materials and inspection time that never appear in the scrap number. FPY exposes it.

How do multi-step yields combine?

Multiply the step yields. Ten steps at 98% give 81.7% rolled throughput yield.