How to use this calculator
Enter your basic box score stats including field goals made and attempted, three pointers made and attempted, free throws made and attempted, rebounds, assists, steals, blocks, turnovers, and total minutes played. You can enter totals from a single game or cumulative numbers across an entire season.
If entering season totals, also provide the number of games played so the calculator can compute per game averages. The calculator then generates advanced metrics including true shooting percentage (TS%), effective field goal percentage (eFG%), assist to turnover ratio, and per 36 minute projections for all counting stats.
Each result is color coded against NBA league averages so you can instantly see where your performance ranks. Green indicates above average, yellow is near average, and red signals below average. Use these benchmarks as reference points, keeping in mind that recreational league pace and competition differ from the NBA.
Understanding advanced basketball stats
True Shooting Percentage (TS%) is the gold standard for measuring scoring efficiency. Unlike regular field goal percentage, it accounts for the added value of three pointers (worth 50% more than twos) and free throws. A player who shoots 40% from three and gets to the line often can have a better TS% than someone shooting 50% on all twos.
Effective Field Goal Percentage (eFG%) adjusts field goal percentage by giving extra credit for made threes. The formula adds half the value of each made three pointer to the numerator. This bridges the gap between traditional FG% and true efficiency by recognizing that a made three is worth more than a made two.
Per 36 minutes normalizes all counting stats to a standard 36 minute baseline. This helps compare players who get different amounts of court time. A reserve averaging 6 points in 12 minutes produces at the same rate as a starter averaging 18 in 36 minutes. The metric works best for players in the 20 to 36 minute range.
Frequently asked questions
What is true shooting percentage and what is a good TS%?
True Shooting % measures points scored per scoring attempt, accounting for twos, threes, and free throws. The formula is Points / (2 × (FGA + 0.44 × FTA)). The NBA league average is about 57%. Above 60% is very efficient, and elite scorers like Stephen Curry regularly exceed 62%.
Why use per 36 minutes instead of per game?
Per game averages favor players who play more minutes regardless of efficiency. Per 36 levels the playing field by showing what a player produces in a standard amount of time. It is especially useful for evaluating young players, bench players, or comparing across eras with different pace of play. Be cautious with very low minute totals, as per 36 can inflate stats for players in short bursts.
What is a good assist to turnover ratio?
An AST/TO above 2.0 is considered good ball security. Above 3.0 is excellent and typical of elite point guards. The league average sits around 1.5 to 1.7. For non guards, a lower ratio is acceptable since wings and bigs handle the ball less frequently and are expected to create fewer assists.
How do I track basketball stats during a game?
Keep a simple scoresheet with columns for each stat. Tally makes and misses separately for FG, 3PT, and FT. Record rebounds, assists, steals, blocks, turnovers, and fouls as they happen. After the game, total everything up and enter it here to see your advanced metrics. Many coaches also use shot chart templates to track where shots are taken on the court.