“EFF” in basketball denotes a player’s efficiency. In professional basketball, the most common statistic for comparing the overall value of players is called efficiency.
It is a combined basketball statistic that is derived from basic individual statistics: points, rebounds, assists, steals, blocks, turnovers, and shot attempts.

What is “Efficiency” in basketball?
The formula is an addition of positive actions (points, rebounds, assists, steals, and blocks) and then minus negative actions (missed field goals, missed free throws, and turnovers). It is a total performance statistic that tries to evaluate a player’s performance above the number of points produced.
NBA statistics list EFF as a simple addition of these factors. Other variants of EFF show EFF per game played (EFF/GP, sometimes listed as just EFF) or EFF distributed to 1 unit of regulation game time (EFF/48 for NBA and EFF/40 for NCAA and WNBA).
Purpose of Basketball Efficiency Calculator:
- To evaluate the overall value of a player’s capability.