E Fg Effective Field Goal Calculator
Track your fg% effective field goal with our free sports calculator. Get personalized stats, rankings, and performance comparisons.
Reviewed for accuracy by Sher, Sports Science & Nutrition Specialist
E Fg Effective Field Goal Calculator
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Formula: eFG% = (FGM + 0.5 x 3PM) / FGA x 100
Worked example — eFG%: 58.3% (Excellent) | TS%: 60.7% | Points: 24 | The three-point shooting boosted eFG% by 13.9 points
Formula
eFG% = (FGM + 0.5 x 3PM) / FGA x 100
Where FGM = Field Goals Made, 3PM = Three-Pointers Made, FGA = Field Goals Attempted. The 0.5 multiplier accounts for the 50% additional value of a three-point make over a two-point make.
Worked Examples
Example 1: Guard with High Three-Point Volume
Problem:A shooting guard makes 8 field goals on 18 attempts, with 5 of those makes being three-pointers. He also made 3 of 4 free throws. Calculate his eFG% and TS%.
Solution:FG% = 8 / 18 = 44.4% eFG% = (8 + 0.5 x 5) / 18 = 10.5 / 18 = 58.3% Total Points = (3 x 2) + (5 x 3) + 3 = 6 + 15 + 3 = 24 TS% = 24 / (2 x (18 + 0.44 x 4)) = 24 / (2 x 19.76) = 24 / 39.52 = 60.7% eFG% bonus from threes: 58.3 - 44.4 = 13.9 percentage points
Result:eFG%: 58.3% (Excellent) | TS%: 60.7% | Points: 24 | The three-point shooting boosted eFG% by 13.9 points
Example 2: Center with Interior Scoring
Problem:A center makes 7 field goals on 10 attempts with 0 three-pointers. He also converted 6 of 8 free throws. Calculate his eFG% and TS%.
Solution:FG% = 7 / 10 = 70.0% eFG% = (7 + 0.5 x 0) / 10 = 7 / 10 = 70.0% Total Points = (7 x 2) + 6 = 20 TS% = 20 / (2 x (10 + 0.44 x 8)) = 20 / (2 x 13.52) = 20 / 27.04 = 74.0% No eFG% bonus since no three-pointers were attempted
Result:eFG%: 70.0% (Elite) | TS%: 74.0% | Points: 20 | Pure interior efficiency
Frequently Asked Questions
What is effective field goal percentage and why does it matter?
Effective field goal percentage (eFG%) is an advanced basketball statistic that adjusts the traditional field goal percentage to account for the extra value of three-point shots. The formula is eFG% = (FGM + 0.5 x 3PM) / FGA. The 0.5 multiplier on three-pointers reflects the fact that a made three-pointer is worth 50% more points than a made two-pointer (3 vs 2 points). Standard FG% treats all made baskets equally, which unfairly penalizes players who take more three-pointers. For example, a player who goes 4-for-10 on all three-pointers scores 12 points (40% FG) while a player who goes 6-for-10 on all two-pointers scores only 12 points (60% FG). Their eFG% values of 55% and 60% respectively give a more accurate picture of scoring efficiency.
How does eFG% differ from true shooting percentage?
While eFG% accounts for the added value of three-pointers over two-pointers, true shooting percentage (TS%) goes further by incorporating free throws into the efficiency calculation. The TS% formula is Total Points / (2 x (FGA + 0.44 x FTA)). The 0.44 coefficient on free throw attempts approximates the number of possessions used by free throws, since and-one situations, technical free throws, and three-shot fouls use possessions differently. TS% is considered the most comprehensive single measure of scoring efficiency because it captures value from all three scoring methods. A player who draws many fouls and converts free throws at a high rate will have a higher TS% relative to their eFG%. James Harden, for example, historically showed large gaps between his eFG% and TS% due to his prolific free throw generation.
What is considered a good eFG% in the NBA?
In the NBA, the league average eFG% typically hovers around 52-54%. An eFG% above 55% is considered above average, while anything above 60% is elite. For context, elite big men who primarily score on dunks and layups near the basket often post eFG% values above 65%, while perimeter players who take more difficult shots usually fall in the 50-58% range. The highest single-season eFG% values in NBA history have been posted by rim-running centers like DeAndre Jordan (70.3% in 2016-17) and Rudy Gobert. When evaluating players, it is important to consider shot volume alongside efficiency, as a player taking 20 shots per game at 55% eFG% is significantly more valuable offensively than one taking 5 shots at 60% eFG%. Team-wide eFG% correlates strongly with offensive rating and winning percentage.
How do three-point shots impact eFG% calculation?
Three-point shots have a magnified impact on eFG% because the formula adds half the value of each made three-pointer to the numerator. This means that making a three-pointer boosts eFG% more than making a two-pointer from the same number of attempts. Consider this practical illustration: if a player takes 10 shots and makes 4, their base FG% is 40%. If all 4 makes were two-pointers, eFG% = 4/10 = 40%. If 2 of those makes were three-pointers, eFG% = (4 + 0.5 x 2) / 10 = 50%. If all 4 makes were three-pointers, eFG% = (4 + 0.5 x 4) / 10 = 60%. This mathematical property reflects the real-world impact: a team that shoots 35% from three generates 1.05 points per three-point attempt, equivalent to shooting 52.5% on two-pointers. This is why modern basketball analytics heavily favor three-point shooting.
How can players and coaches use eFG% to improve strategy?
Coaches and players can use eFG% to make data-driven decisions about shot selection, lineup construction, and game planning. On offense, comparing eFG% by shot zone helps identify where a player is most efficient. If a player has 60% eFG% at the rim but only 42% on mid-range shots, the coaching staff should design plays that get them closer to the basket or behind the three-point line. For lineup analysis, grouping players with high eFG% together often creates better offensive spacing and efficiency. Defensively, tracking opponent eFG% by play type reveals which defensive coverages are working. Modern NBA analytics departments track eFG% in hundreds of specific situations including pick-and-roll, isolation, transition, post-up, and catch-and-shoot to optimize both offensive and defensive schemes throughout the season.
References
Reviewed for accuracy by Sher, Sports Science & Nutrition Specialist · Editorial policy
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