First Pass Yield

What is First Pass Yield?

The First Pass Yield (FPY) is the number of units that come out of a process divided by the number that are input into that process over a specific time period. This is a key manufacturing metric to compare quality and production performance. The reduction of waste from a process correlates closely with its effectiveness. The FPY is also useful for measuring the success of continuous improvement as it focuses on reducing waste and inefficiency.


Produced units (output) without any rework divided by the total number of units that went into production (input) over a period of time.