NBA Stats Calculator
Calculate advanced NBA player stats instantly. Enter box score numbers to get True Shooting %, Effective FG%, Game Score, PER estimate, and efficiency ratings. Load preset stats from star players or enter your own.
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Understanding Advanced NBA Stats
Advanced basketball analytics go far beyond basic box score numbers like points, rebounds, and assists. Metrics like True Shooting Percentage and Game Score give analysts, coaches, and fans a much deeper understanding of how efficiently a player performs on the court. These stats account for the different values of two-point field goals, three-pointers, and free throws, providing a more complete picture than traditional shooting percentages.
True Shooting Percentage (TS%) is widely considered the best single measure of scoring efficiency. Unlike field goal percentage, TS% incorporates free throws and three-pointers into one number. A league-average TS% typically hovers around 56-58%, while elite scorers like Stephen Curry and Kevin Durant regularly exceed 60%. Any player above 60% is considered highly efficient, while values above 65% are historically rare and exceptional.
Why Game Score Matters
Game Score was created by basketball statistician John Hollinger as a quick way to rate a player's single-game performance with one number. It weights positive contributions like points, rebounds, assists, steals, and blocks against negative contributions like missed shots, turnovers, and fouls. A Game Score of 10 is roughly average, 20 is excellent, and 40+ represents one of the greatest single-game performances in NBA history. Michael Jordan holds the record with a Game Score of 64.8 from his legendary 69-point game against the Cleveland Cavaliers in 1990.
Effective Field Goal Percentage (eFG%) adjusts standard field goal percentage to account for the extra value of three-point shots. Since a made three-pointer is worth 50% more than a made two-pointer, eFG% adds half the value of each three made. This metric is crucial for evaluating modern NBA players who rely heavily on the three-point shot. A player shooting 40% on threes may actually be more efficient than one shooting 50% on twos.
PER and Points Per Minute
Player Efficiency Rating (PER) was also developed by Hollinger to summarize a player's per-minute statistical production. The league average PER is set at 15.0 by definition. Hall of Fame caliber seasons typically feature PERs above 25, while the all-time leaders like Michael Jordan (27.9 career), LeBron James (27.1), and Nikola Jokic have consistently posted elite PER numbers. This calculator provides a simplified PER estimate based on single-game stats to give you a directional sense of a player's productivity.
Points per minute is a straightforward efficiency metric that shows how many points a player scores for each minute on the court. Combined with the assist-to-turnover ratio, it paints a picture of both offensive output and ball security. An assist-to-turnover ratio above 2.0 is considered good, while elite playmakers like Chris Paul have posted career ratios above 4.0.