In basketball, **effective field goal percentage** (abbreviated **eFG%**) is a statistic that adjusts field goal percentage to account for the fact that three-point field goals count for three points while field goals only count for two points. ^{[1]} Its goal is to show what field goal percentage a two-point shooter would have to shoot at to match the output of a player who also shoots three-pointers. ^{[2]}

It is calculated by:

where:

- FG = field goals made
- 3P = 3-point field goals made,
- FGA = field goal attempts,

^{[3]}

It can also be calculated by:

where:

- PPG = points per game
- FT = the free throws made
- FGA = field goal attempts

The advantage of this second formula is that it highlights the aforementioned logic behind the statistic, where it is pretended that a player only shot two-point shots (hence the division of non-free-throw points by 2).

An additional formula that seems to be more in use by the statistics actually displayed on websites (but less cited by said websites) is:

where:

- 2FG = 2-point field goals made
- 3FG = 3-point field goals made
- FGA = field goal attempts

^{[4]}

All three equations yield the same result.