Skip to content
Calculator Tools
Manufacturing Calculators

Production Yield Calculator

First-pass yield: good units as a percentage of units started, with the defect rate.

Enter values

Results update as you type.

Result

Yield

94%

Defect rate
6%
Units scrapped
60
Step-by-stepShow
  1. Yield = 940 ÷ 1,000 × 100 = 94%

About the Production Yield Calculator

First-pass yield: good units as a percentage of units started, with the defect rate.

Also known as: first pass yield, fpy calculator, process yield, yield percentage.

How to use this calculator

  1. Enter good units, units started.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Open “Step-by-step” to see how the answer was worked out.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

Yield = Good units ÷ Units started × 100

Worked example

Using the values pre-filled in the calculator above:

  • Good units = 940
  • Units started = 1,000

the calculator returns:

  • Yield: 94%
  • Defect rate: 6%
  • Units scrapped: 60

Working

  1. Yield = 940 ÷ 1,000 × 100 = 94%