Basketball Stats Calculator
Work out points, rebounds and assists per game plus NBA Efficiency (EFF) from a box score.
Compare the per-game averages against NBA starter and All-Star norms.
Basketball player statistics are expressed as per-game averages, which allow fair comparison between players with different numbers of games played. The three most tracked stats are points, rebounds, and assists per game.
The per-game average formula: Stat Per Game = Total Season Stat / Games Played
Points Per Game (PPG): PPG = Total Points / Games Played
Rebounds Per Game (RPG): RPG = (Offensive Rebounds + Defensive Rebounds) / Games Played
Assists Per Game (APG): APG = Total Assists / Games Played
Worked example: After 24 games, a player has 432 points, 198 rebounds (62 offensive + 136 defensive), and 96 assists. PPG = 432 / 24 = 18.0 points per game RPG = 198 / 24 = 8.25 rebounds per game APG = 96 / 24 = 4.0 assists per game
NBA Efficiency (EFF), the one this calculator computes:
EFF = (PTS + REB + AST + STL + BLK − missed FG − missed FT − TO) / Games
This is the league’s own official efficiency statistic, and it is deliberately simple: every good thing counts +1, every wasted possession counts −1. Missed shots are the part people forget, and they are what stops a volume scorer from topping the list on shot attempts alone. A 25-point night on 10 of 30 shooting loses 20 points of credit right back.
Roughly where EFF lands:
| EFF per game | What it looks like |
|---|---|
| Under 8 | Bench role |
| 8–12 | Rotation player |
| 12–18 | Solid starter |
| 18–25 | All-Star |
| 25+ | MVP conversation |
EFF is not PER. Player Efficiency Rating is John Hollinger’s pace-adjusted, minutes-normalised composite, calibrated so the league average is exactly 15.0 every season. EFF has no such normalisation and no pace adjustment, so an EFF of 15 and a PER of 15 mean completely different things. If you have seen “league average is 15.0” quoted, that is PER, and this page does not calculate it. PER needs league-wide pace and possession data that no box score contains.
Two other shooting measures worth knowing:
- Field Goal % (FG%): (Field Goals Made / Field Goals Attempted) × 100
- True Shooting % (TS%): Points / (2 × (FGA + 0.44 × FTA)), which folds free throws and three-pointers into one number
NBA career benchmarks (all-time greats):
- Michael Jordan: 30.1 PPG (career record), 6.2 RPG, 5.3 APG
- LeBron James: 27.1 PPG, 7.5 RPG, 7.4 APG
- An “All-Star caliber” season is generally considered: 20+ PPG, 5+ RPG, 5+ APG
Double-double: 10+ in two stat categories in one game. Triple-double: 10+ in three categories, which is rare and impressive.
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
SuperGlobalCalculator is independently built and maintained. See how we build and verify our calculators.
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