Basketball Usage Rate (USG%) Calculator
Calculate a basketball player’s usage rate (USG%) — the share of team possessions he ends with a shot, free throws or a turnover while on the floor — with the Basketball-Reference formula.
How it works
USG% = 100 × (FGA + 0.44 × FTA + TOV) × (Team MP ÷ 5) ÷ [MP × (Team FGA + 0.44 × Team FTA + Team TOV)].
Usage rate, from Basketball-Reference and John Hollinger, estimates the percentage of team plays a player “uses” — ends with a shot attempt, a trip to the line or a turnover — while he is on the court. The 0.44 factor converts free throw attempts into possessions (and-ones and three-shot fouls mean not every pair of free throws is a possession). With five players on the floor the average is 20%; stars usually sit at 28–35%. Usage says nothing about efficiency, so read it alongside true shooting.
Worked example
A player logs 34 minutes with 20 FGA, 6 FTA and 3 turnovers; his team totals 240 minutes, 88 FGA, 22 FTA and 14 turnovers. Player possessions = 20 + 0.44 × 6 + 3 = 25.64; team = 88 + 9.68 + 14 = 111.68. USG% = 100 × 25.64 × 48 ÷ (34 × 111.68) = 32.4%, a star-level load.
Sources: Basketball-Reference — Glossary (USG%) · NBA.com Stats — Glossary: Usage percentage
Frequently asked questions
What is a good usage rate in basketball?
The average is 20% by definition. 25–30% is a primary scorer and 30%+ is a heavy, star-level load; historic highs are close to 40%. A high usage is only good if it comes with efficient scoring.
Why multiply free throws by 0.44?
Not every free throw attempt ends a possession: and-ones add one attempt, technical fouls add attempts, and some fouls give three shots. Research shows about 0.44 possessions per free throw attempt in the NBA.
Do assists count in usage rate?
No. The Basketball-Reference version counts only shots, free throws and turnovers. Some analysts add a share of assists to get a broader “possession usage”, but it is not standard.
Can I use it for FIBA or college games?
Yes — enter 200 team minutes for a 40-minute game. The 0.44 factor was fit to NBA data, but it is widely used at every level.
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This calculator is for educational purposes. Double-check important results before acting on them.