This true shooting calculator computes TS% and eFG% — basketball’s efficiency truth-tellers — from points, field goal attempts and free throw attempts.

True Shooting (TS%)–
Effective FG% (eFG%)–
Raw FG%–

Benchmarks (NBA): league TS% sits ≈ 57–58%; 60%+ is elite efficiency, 65%+ historic seasons. The 0.44 factor estimates how many free throws end a possession (and-ones, technicals and three-shot fouls muddy the rest) — it’s the formula’s one negotiated constant, refined by some analysts to 0.475 for specific eras.

TS% = Points ÷ (2 × True Attempts) — One Number for All Scoring

Field goals, threes and free throws priced in a single efficiency currency: what a possession spent on this shooter returned versus a hypothetical 1-point-per-attempt par. Composite-rate thinking like football’s Passer Rating. Part of our Sports Calculators collection.

Worked Example (Verified)

  • 25 points on 15 FGA + 6 FTA (defaults): true attempts = 15 + 0.44 × 6 = 17.64 → TS = 25 ÷ 35.28 = 70.9% — a scorching night by any standard
  • With 9 FGM including 3 threes: raw FG% = 60.0%, eFG% = (9 + 1.5)/15 = 70.0% — the eFG-FG gap (10 points!) is exactly the three-point premium raw FG% hides
  • The foul-drawing dividend: two players with identical FG lines separate cleanly once free throws enter TS — rim attackers monetize contact that box-score FG% ignores
  • Reality anchor: a league-average night (TS ≈ 57.5%) scores 25 points only on ~21.7 true attempts — the defaults’ 17.64 shows why efficiency, not volume, headlines analytics

Which Percentage When

  • FG%: the newspaper stat — blind to threes’ value and free throws entirely.
  • eFG%: fixes the three-point blindness ((FGM + 0.5×3PM)/FGA), still ignores the line.
  • TS%: the full ledger — use it for player comparisons; mind volume (a 70% TS on 4 attempts ≠ on 25).
  • Era caution: league TS inflates over decades (shot selection, rules) — compare within seasons.

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Frequently Asked Questions

How is true shooting percentage calculated?

TS% = Points ÷ (2 × (FGA + 0.44 × FTA)). The denominator counts “true shooting attempts” — possessions spent shooting — and the ×2 normalizes to a per-two-point scale. Defaults: 25 ÷ (2 × 17.64) = 70.9%. Above 100% is impossible; 60%+ is elite.

Why 0.44 times free throw attempts?

Because not every FTA ends a possession: and-ones, technicals, and the first shots of multi-shot trips don’t consume one. Empirically ~44% of free throws correspond to a used possession. It’s an estimate baked into the standard formula (some leagues/analysts use 0.475) — comparisons stay fair as long as everyone uses the same constant.

What’s the difference between TS% and eFG%?

eFG% adjusts field goals for three-point value ((FGM + 0.5·3PM)/FGA) but excludes free throws; TS% includes everything — points from all sources over all shooting possessions. A foul-drawing slasher can post modest eFG% and excellent TS%; a spot-up shooter shows the reverse profile.

What is a good true shooting percentage?

NBA context: ~57–58% is league average in recent seasons, 60%+ marks efficient scorers, and the best high-volume seasons in history reach 65–70%. College and high-school baselines run several points lower. Judge against the same league and season — TS inflates era by era.

Can TS% exceed 100%?

Theoretically yes: the formula normalizes to 2 points per true attempt, so a player whose every attempt were a made three-pointer would post 3 ÷ 2 = 150%. In real games, misses and two-point attempts dominate, so season leaders land in the high 60s and low 70s — but the theoretical headroom is exactly the stat’s point: threes and free throws are worth more per possession, and TS% credits them.

Is this true shooting calculator free?

Yes — free, instant, no sign-up.