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.

Formula:

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