What Is a True Shooting Percentage Calculator?
True Shooting Percentage (TS%) is a basketball efficiency stat that measures points scored per shooting possession, accounting for 2-point shots, 3-point shots and free throws all together. Because it converts every point source into a single "true" shot attempt, it's widely considered the best all-around shooting efficiency metric — more complete than plain field goal percentage, which ignores free throws and treats 2s and 3s the same.
This calculator takes total points, field goal attempts and free throw attempts, and applies the standard formula used across basketball analytics sites like Basketball-Reference.
How to Read Your Results
True Shooting Percentage
The headline efficiency number. NBA league average is typically around 56-58%. Elite efficient scorers often post 60%+, while inefficient high-volume scorers can fall into the low 50s or below.
True Shooting Attempts (TSA)
An estimate of "shot possessions used," combining field goal attempts with a fraction (0.44) of free throw attempts, since most free throw trips involve 2 or 3 attempts per shooting foul.
Points per Shot Attempt
A simpler efficiency measure — points scored divided by field goal attempts only, without adjusting for free throws.
Field Goal Percentage (Approx.)
An approximate traditional field goal percentage derived from points and attempts, shown for comparison against TS%. (Note: this approximation assumes an even mix of 2s and 3s; use box-score FG% for an exact figure.)
Real-World Example
A player scores 24 points on 18 field goal attempts and 6 free throw attempts.
| Step | Calculation | Result |
|---|---|---|
| True shooting attempts | 18 + (0.44 × 6) | 20.64 |
| Denominator | 2 × 20.64 | 41.28 |
| True Shooting % | 24 ÷ 41.28 | 58.1% |
A 58.1% TS% on this shooting line is right around NBA league average — a solid, efficient scoring performance once free throws are factored in.
Tips for Using This Calculator
- TS% rewards drawing fouls — a player who gets to the free throw line often can post a strong TS% even with an average field goal percentage.
- Use season totals rather than a single game for a more stable, meaningful efficiency number.
- Compare against position and role. High-volume, high-usage scorers often have lower TS% than efficient role players who take fewer, better shots.
- TS% doesn't account for shot difficulty or defense faced — it's an efficiency stat, not a full picture of shot-making skill under pressure.
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Last updated: August 2026 · Reviewed by: Simple Calculator Tools Editorial Team