E Fg Effective Field Goal Calculator

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%\neFG% = (8 + 0.5 x 5) / 18 = 10.5 / 18 = 58.3%\nTotal Points = (3 x 2) + (5 x 3) + 3 = 6 + 15 + 3 = 24\nTS% = 24 / (2 x (18 + 0.44 x 4)) = 24 / (2 x 19.76) = 24 / 39.52 = 60.7%\neFG% 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%\neFG% = (7 + 0.5 x 0) / 10 = 7 / 10 = 70.0%\nTotal Points = (7 x 2) + 6 = 20\nTS% = 20 / (2 x (10 + 0.44 x 8)) = 20 / (2 x 13.52) = 20 / 27.04 = 74.0%\nNo 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.

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