E Fg Effective Field Goal Calculator
Track your fg% effective field goal with our free sports calculator. Get personalized stats, rankings, and performance comparisons.
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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.
Last reviewed: December 2025
Worked Examples
Example 1: Guard with High Three-Point Volume
Example 2: Center with Interior Scoring
Background & Theory
The E Fg% (effective Field Goal %) applies the following established principles and formulas. Sports statistics and performance metrics represent one of the most data-rich domains of applied mathematics available to the general public. Baseball, in particular, has developed an exceptionally dense vocabulary of calculated metrics. Earned run average (ERA) quantifies a pitcher's effectiveness as (earned runs × 9) / innings pitched, normalising performance to a nine-inning standard regardless of how many complete games were pitched. WHIP, or walks and hits per inning pitched, is computed as (walks + hits) / innings pitched and provides a complementary measure of how frequently a pitcher allows baserunners. Batting average, one of the oldest statistics in the sport, is simply hits / at-bats, though more modern metrics such as on-base percentage and slugging percentage have largely supplanted it as primary performance indicators. The NFL passer rating formula is considerably more complex, combining completion percentage, yards per attempt, touchdown rate, and interception rate into a composite score scaled to a 0–158.3 range. Golf handicap calculation, now governed by the World Handicap System introduced in 2020, uses a Handicap Differential formula applied to the best 8 of a player's most recent 20 score differentials, with adjustments for course rating and slope. The Elo rating system, originally developed by physicist Arpad Elo for chess ranking in the 1960s, has become a widely adopted framework for competitive ranking in sports ranging from football to table tennis. It updates each player's rating after every match based on the margin of expected versus actual result. In endurance sports, pace calculation converts total time to a per-mile or per-kilometre rate, informing training intensity and race strategy. In cycling, power-to-weight ratio (watts per kilogram) is the primary determinant of climbing performance and is central to both professional race analysis and amateur fitness tracking. Fantasy sports scoring systems synthesise multiple individual statistics into aggregate point totals, requiring participants to understand the relative value of different performance categories across sports.
History
The history behind the E Fg% (effective Field Goal %) traces back through the following developments. Organised athletic competition has roots extending to ancient Greece, where the Olympic Games were held at Olympia beginning around 776 BCE. These early games were embedded in religious observance and civic identity, featuring events such as sprinting, wrestling, and the pentathlon. The codification of modern sport rules accelerated dramatically in 19th century Britain, where industrialisation created both the leisure time and the institutional infrastructure for organised competition. The Football Association formalised the rules of association football in 1863, and similar governing bodies for cricket, rugby, tennis, and athletics followed in subsequent decades. Pierre de Coubertin, a French educator inspired by the English model of sport as character-building, campaigned to revive the Olympic Games as a modern international institution. The first modern Summer Olympics were held in Athens in 1896, establishing the template for international multi-sport competition that has continued to the present. FIFA, the international governing body for association football, was founded in Paris in 1904 with seven member nations. The serious statistical analysis of baseball, later termed sabermetrics, was pioneered by writers and analysts including Bill James beginning in the late 1970s. James self-published his Baseball Abstract annuals starting in 1977, introducing rigorous empirical methods to a domain previously dominated by traditional counting statistics and subjective scouting. His work influenced a generation of analysts and front-office executives. The publication of Michael Lewis's Moneyball in 2003, documenting the Oakland Athletics' 2002 season and their use of on-base percentage and other undervalued metrics, brought sports analytics to mainstream attention. The subsequent analytics revolution reshaped hiring practices and game strategy across professional sports leagues. Fantasy sports, which require participants to engage directly with statistical outputs, grew from a hobby practised by a few thousand enthusiasts in the 1980s into a multi-billion dollar industry by the 2010s, with tens of millions of participants across football, baseball, basketball, and other sports.
Frequently Asked Questions
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.
How do I verify E Fg Effective Field Goal Calculator's result independently?
The Formula section on this page shows the equation used. You can reproduce the calculation manually or in a spreadsheet using those steps. Compare your answer against the worked examples in the Examples section, which use known reference values so you can confirm the calculator is behaving as expected.
What inputs do I need to use E Fg Effective Field Goal Calculator accurately?
Each field is labelled with the required unit (metric or imperial). Gather your source values before starting — for example, a weight measurement in kilograms, a distance in metres, or a dollar amount — and enter them exactly as measured. The formula section on this page lists every variable and explains what each represents.
Is my data stored or sent to a server?
No. All calculations run entirely in your browser using JavaScript. No data you enter is ever transmitted to any server or stored anywhere. Your inputs remain completely private.
How do I get the most accurate result?
Enter values as precisely as possible using the correct units for each field. Check that you have selected the right unit (e.g. kilograms vs pounds, meters vs feet) before calculating. Rounding inputs early can reduce output precision.
Can I use the results for professional or academic purposes?
You may use the results for reference and educational purposes. For professional reports, academic papers, or critical decisions, we recommend verifying outputs against peer-reviewed sources or consulting a qualified expert in the relevant field.
References
Reviewed by Sher, Sports Science & Nutrition Specialist · Editorial policy