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Basketball Efficiency Calculator

Turn a player’s box score into PIR, Game Score, TS%, eFG%, every shooting percentage and per-36 numbers.

Box score

Results

–PIR (efficiency)
–Game Score
–TS% (true shooting)
–eFG% (effective FG)
–FG%
–2P%
–3P%
–FT%
–Total rebounds

Per 36 minutes

–Points / 36
–Rebounds / 36
–Assists / 36
–PIR / 36

This tool runs entirely in your browser; your data is never sent to a server.

How to use

  1. 1Enter minutes, points and shooting; field goals include threes.
  2. 2Add rebounds, assists, steals, blocks, turnovers and fouls.
  3. 3Enter fouls drawn and the player’s own shots that were blocked (needed for PIR).
  4. 4PIR, Game Score, percentages and per-36 values update as you type.

How PIR is calculated

PIR (Performance Index Rating) is the EuroLeague and EuroCup efficiency stat: (points + rebounds + assists + steals + blocks + fouls drawn) − (missed field goals + missed free throws + turnovers + shots blocked + fouls committed). The example player – 24 points in 32 minutes on 9/17 shooting, 3/7 from three, 3/4 at the line, 8 rebounds, 5 assists, 2 steals, 1 block, 3 turnovers, 2 fouls, 4 fouls drawn and 1 shot blocked – posts a PIR of 29. The EuroLeague still uses PIR to pick its MVP of the Round (2026).

TS%, eFG% and Game Score

eFG% = (FGM + 0.5 × 3PM) ÷ FGA, crediting a three as 1.5 twos. TS% = PTS ÷ (2 × (FGA + 0.44 × FTA)) adds free throws and is the most complete shooting measure. In the example eFG% is 61.8% and TS% 64.0%. Game Score, created by John Hollinger: PTS + 0.4 FG − 0.7 FGA − 0.4 (FTA − FT) + 0.7 ORB + 0.3 DRB + STL + 0.7 AST + 0.7 BLK − 0.4 PF − TOV. The example scores 20.9; 10 is roughly an average game and 40 an outstanding one.

Which number to use

PIR weights every positive and negative stat equally, so it favours bigs who rebound and draw fouls; Game Score’s weights reward efficient scoring more. Per-36 numbers help compare bench and starting players, but they get noisy for very short stints. When keeping stats for a school, AAU or club team, logging fouls drawn and shots blocked against lets you compute PIR exactly instead of the simpler NBA-style efficiency.

Frequently asked questions

What is PIR in basketball?

Performance Index Rating, the EuroLeague’s efficiency stat: positive actions (points, rebounds, assists, steals, blocks, fouls drawn) minus negative ones (missed shots and free throws, turnovers, shots blocked, fouls committed).

What is the difference between TS% and eFG%?

eFG% looks only at field goals and gives threes extra weight. TS% also includes free throws, so players who get to the line a lot have a higher TS% than eFG%.

What is a good true shooting percentage?

Professional league averages are typically around 55–58%; above 60% is very efficient. It varies by league and era.

Is PIR the same as NBA efficiency (EFF)?

No. NBA EFF leaves out fouls drawn, fouls committed and shots blocked; PIR includes all three.

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