Why can two players have the same field goal percentage but different scoring efficiency?

Because normal field goal percentage treats a two-point make and a three-point make as one make. Effective field goal percentage and true shooting percentage add more context by giving credit for three-point value and, in the case of true shooting, free throws.

Should I use player stats or team stats?

The same formulas can work for both, but interpretation changes. A player stat describes one player’s shot profile or decision-making, while a team stat describes the whole offense or defense.

Are these advanced stats official box score stats?

Some are standard box-score calculations and some are advanced efficiency views. They are useful for analysis, but they still depend on accurate makes, attempts, points, turnovers, and possession counts.

Can one game tell me enough?

One game can show what happened, but it can be noisy. Shooting and possession stats become more meaningful over a larger sample because opponent quality, role, shot difficulty, and late-game situations can swing a single result.

Why does the calculator show extra outputs?

A useful sports calculator should answer the next question too. For example, after calculating a percentage, it helps to see miss rate, target makes, points per attempt, or per-100-possession context.

Sports & Fitness

Effective Field Goal Percentage Calculator

Calculate effective field goal percentage and see how much made threes improve shooting efficiency compared with standard field goal percentage.

What does effective field goal percentage measure?

Effective field goal percentage is a shooting-efficiency stat that gives extra credit for made three-pointers. A made three is worth 1.5 times a made two on the scoreboard, so eFG% is usually a better shooting-efficiency measure than normal FG% when players take many threes.

Why does eFG% matter more in modern basketball?

A player who shoots 6-for-12 with four made threes produces more scoring value than a player who shoots 6-for-12 on all twos. Regular FG% says both are 50%. eFG% sees the difference. The NBA stats glossary describes eFG% as field goal percentage adjusted for the extra value of made three-point field goals.

What should I compare it with?

Use eFG% beside true shooting percentage, points per possession, and shot volume. eFG% ignores free throws, so it is excellent for shot-making value but incomplete for players who draw many fouls.

Frequently asked questions

Because normal field goal percentage treats a two-point make and a three-point make as one make. Effective field goal percentage and true shooting percentage add more context by giving credit for three-point value and, in the case of true shooting, free throws.
The same formulas can work for both, but interpretation changes. A player stat describes one player’s shot profile or decision-making, while a team stat describes the whole offense or defense.
Some are standard box-score calculations and some are advanced efficiency views. They are useful for analysis, but they still depend on accurate makes, attempts, points, turnovers, and possession counts.
One game can show what happened, but it can be noisy. Shooting and possession stats become more meaningful over a larger sample because opponent quality, role, shot difficulty, and late-game situations can swing a single result.
A useful sports calculator should answer the next question too. For example, after calculating a percentage, it helps to see miss rate, target makes, points per attempt, or per-100-possession context.