Introduction
True Shooting Percentage (TS%) is basketball’s most comprehensive shooting efficiency metric. Unlike standard field goal percentage or even effective field goal percentage, TS% accounts for every scoring method: two-pointers, three-pointers, and free throws. It answers the fundamental question: “How efficiently does this player turn scoring opportunities into actual points?”
This free TS% calculator is designed for basketball analysts, fantasy sports players, coaches, and serious fans who want the gold standard of shooting metrics. Simply enter points scored, field goals attempted, and free throws attempted. The formula applies the standard 0.44 coefficient for free throw possessions (accounting for technical fouls and and-one opportunities) to calculate true shooting attempts, then divides points by twice that number. The result is a percentage that accurately reflects scoring efficiency across all shot types. Powered by Toolraxy, this tool delivers professional-grade analytics used by NBA front offices and major sports media.
How to Use
Enter Points (PTS) – Input total points scored by the player
Enter Field Goals Attempted (FGA) – Input total shot attempts from the field (minimum 1)
Enter Free Throws Attempted (FTA) – Input total free throw attempts
Click Calculate – Press the red Calculate button or wait for automatic update
Review your TS% – View your true shooting percentage and efficiency rating
Copy or share – Use Copy button for clipboard or Share for social media
How the Tool Works
The calculator uses the standard True Shooting Percentage formula developed by basketball statisticians and adopted by the NBA, ESPN, and all major analytics platforms.
Formula:
TS% = PTS ÷ (2 × (FGA + 0.44 × FTA)) × 100
Mathematical structure:
What is the 0.44 coefficient?
Not every free throw attempt consumes a full possession. Some come from:
And-one opportunities (free throw after made field goal) – adds 0 extra possessions
Technical fouls (free throws without possession change) – adds 0 extra possessions
Shooting fouls on three-pointers (3 free throws from 1 possession)
The 0.44 coefficient is an empirical constant that accurately estimates the average number of possessions used per free throw attempt across all NBA games. It converts FTA into “true shooting attempts” that align with actual scoring possessions.
True Shooting Attempts (TSA) formula:
Validation behavior:
If FGA is 0 or negative → error message displays (no field goal attempts)
Empty or invalid inputs default to 0
Negative points treated as 0
FTA can be 0 (player didn’t shoot free throws)
All inputs rounded to whole numbers
Edge cases:
Perfect game (e.g., 10-for-10 shooting, 10-for-10 free throws) produces 100% TS%
High three-point volume automatically reflected through points scored
Low free throw rate correctly weights fewer possessions
FGA minimum 1 prevents division by zero
Shooting efficiency rating scale (mapped from TS%):
Worked Example
Scenario: Evaluating a shooting guard’s overall scoring efficiency
Let’s calculate True Shooting Percentage for a player with this stat line:
Step 1: Calculate True Shooting Attempts (TSA)
FGA + (0.44 × FTA) = 18 + (0.44 × 5) = 18 + 2.2 = 20.2
Step 2: Multiply TSA by 2
2 × TSA = 2 × 20.2 = 40.4
Step 3: Divide points by result from Step 2
PTS ÷ 40.4 = 25 ÷ 40.4 = 0.6188
Step 4: Multiply by 100 for percentage
0.6188 × 100 = 61.88%
Result: TS% = 61.9% → “Excellent – All-Star Level”
What this means: The player scores with All-Star caliber efficiency. For context, league-average TS% typically ranges from 54% to 56%. At 61.9%, this player significantly outperforms average efficiency. Their efficiency comes from either high three-point volume (each three-pointer adds 3 points to the numerator without increasing FGA denominator), high free throw rate (each free throw adds points with only 0.44 possession cost), or excellent two-point shooting.
Practical takeaway: TS% reveals efficiency that basic stats hide. A player scoring 25 points on 18 FGA and 5 FTA might seem inefficient (standard FG% around 45%), but TS% adjusts for the three-pointers and free throws to show true All-Star efficiency.
Why Is My True Shooting Percentage Low Despite Good Field Goal Percentage?
Standard field goal percentage of 50% might seem solid, but TS% could be below 50% for several reasons. Example: Player scores 15 points on 15 FGA (50% FG) with 0 FTA. TS% = 15 ÷ (2 × (15 + 0)) = 15 ÷ 30 = 50%. That’s actually average. But if those 15 FGA are all two-pointers (no threes), and the player takes no free throws, 50% TS% is indeed average. To raise TS%, the player needs either: (a) convert some two-pointers to three-pointers while maintaining percentage, (b) draw more fouls to add free throws, or (c) improve field goal percentage significantly. A player shooting 50% FG but 2-for-10 from three (20%) actually hurts TS% compared to shooting 50% on two-pointers only. TS% punishes poor three-point percentage harshly because missed threes still count as attempts in denominator while providing zero points.
When Should You Use TS% vs. Effective Field Goal Percentage (eFG%)?
Use TS% when you need complete scoring efficiency including free throws. TS% is superior for comparing players with different free throw rates—for example, a slashing guard who draws many fouls vs. a spot-up shooter who rarely goes to the line. Use eFG% when you only care about field goal shooting without free throws, or when analyzing shot selection independent of foul-drawing ability. Many analytics experts prefer eFG% for predicting future shooting because free throw rate fluctuates more game-to-game. However, for overall player evaluation, TS% is standard because free throws are real points that matter for winning. This TS% calculator is ideal for complete efficiency analysis; use the eFG calculator on Toolraxy for shot-selection analysis without free throws.
Common Mistakes When Calculating True Shooting Percentage
The most frequent error is using the wrong coefficient. Some people incorrectly use 0.5 instead of 0.44, which overestimates true shooting attempts and understates TS% by 2-4 percentage points. Another common mistake is forgetting that TS% is a percentage—reporting 0.618 instead of 61.8%. Using field goals made instead of attempted destroys the calculation entirely. Double-counting three-pointers (adding extra weight beyond points scored) massively inflates TS%. Forgetting to multiply by 100 yields decimal scores. Misunderstanding the 0.44 coefficient’s purpose leads to “adjusting” it per game, which is incorrect—0.44 is an empirical constant that should always be used. Finally, comparing TS% across different eras without context ignores league-wide efficiency changes (rules changes, three-point revolution).
Real-World Example: Comparing Two Different Scoring Styles
Compare two players with identical 25 points but different efficiency profiles:
Player A (High Volume Shooter): 25 points on 22 FGA (8-22 FG, 4-10 3PT, 5-5 FT). TS% = 25 ÷ (2 × (22 + 0.44×5)) = 25 ÷ (2 × (22+2.2)) = 25 ÷ (2 × 24.2) = 25 ÷ 48.4 = 51.7% (Average)
Player B (Efficient Scorer): 25 points on 15 FGA (9-15 FG, 5-8 3PT, 2-2 FT). TS% = 25 ÷ (2 × (15 + 0.44×2)) = 25 ÷ (2 × (15+0.88)) = 25 ÷ (2 × 15.88) = 25 ÷ 31.76 = 78.7% (Elite)
Both players scored 25 points, but Player B used 7 fewer field goal attempts and 3 fewer free throw attempts. Player B’s TS% is 27 percentage points higher, demonstrating dramatically superior efficiency. This is why NBA teams prioritize efficient scorers over high-volume, low-efficiency players. Player A would need 22-25 shots to score 25 points; Player B needs only 15-17 shots, leaving more possessions for teammates.
Benefits of Using This Tool
Saves time – Instant calculation eliminates manual arithmetic with the 0.44 coefficient
Reduces manual errors – Automated validation prevents coefficient mistakes and division errors
Instant results – Real-time updates as you type any input field
Free forever – No subscription, payment, or registration required
Private – All calculations in your browser; no player data sent to any server
Accessible on any device – Fully responsive design works on phones, tablets, laptops, and desktops
Professional rating scale – Built-in efficiency tiers (Elite to Below Average) help interpret results
Copy and share features – One-click clipboard sharing for reports, social media, or coaching notes
FAQ Section
How accurate is this True Shooting Percentage calculator?
It’s mathematically exact to NBA standards. The tool uses the official 0.44 coefficient and formula published by the NBA, ESPN, Basketball Reference, and all major analytics platforms.
Can I calculate TS% manually without this tool?
Yes, using the formula above. However, manual errors with the 0.44 coefficient are common, and the multi-step division creates rounding mistakes. This tool ensures perfect precision.
Why does the formula use 0.44 instead of 0.5?
Free throws don’t always consume a full possession. And-one opportunities and technical fouls add free throws without new possessions. The 0.44 coefficient is an empirical constant that accurately averages these scenarios across millions of NBA possessions.
Is this tool safe for professional scouting?
Absolutely. All calculations run locally in your browser. No player names, team data, or scouting information is ever transmitted or stored. You can analyze proprietary data with complete privacy.
What is the difference between TS% and standard field goal percentage?
Standard FG% ignores three-point value and free throws entirely. A player shooting 5-for-10 (all twos) has 50% FG% and 50% TS%. A player shooting 5-for-10 (all threes) has 50% FG% but 75% TS% because they scored 15 points on the same attempts. TS% captures the true scoring advantage.
What is the difference between TS% and effective field goal percentage (eFG%)?
eFG% includes three-point weighting but excludes free throws. TS% includes both. Use eFG% for shot selection analysis without foul-drawing ability; use TS% for complete shooting efficiency.
How do I interpret the “Shooting Efficiency” rating?
The rating compares TS% to NBA benchmarks. “Elite” (65%+) is historic, “Excellent” (60-64.9%) is All-Star, “Great” (55-59.9%) is above-average starter, “Good” (50-54.9%) is efficient scorer, “Average” (45-49.9%) is league standard, “Below Average” (under 45%) needs improvement.
Why does the calculator show an error when FGA is zero?
Division by zero is mathematically impossible. Field goal attempts must be at least 1 to calculate a meaningful shooting percentage. Even players who only shoot free throws still have field goal attempts (zero) but the metric requires FGA for the denominator.
Does this tool work for college or high school basketball?
Yes, the formula is universal. However, benchmark ratings differ slightly due to shorter games and different rules. College average TS% runs 50-54%, high school 48-52%. Adjust expectations downward by 2-4 percentage points from NBA benchmarks.
Can I use TS% for a full season or career?
Absolutely. Sum all points, field goal attempts, and free throw attempts across the season or career, then enter the totals. The formula scales linearly, so results are identical to averaging per-game TS%.
What’s considered an “elite” TS% for different positions?
For point guards: 58%+ is elite. For shooting guards: 60%+ is elite. For small forwards: 61%+ is elite. For power forwards: 62%+ is elite. For centers: 64%+ is elite. Centers typically have highest TS% due to dunks/layups.
Why does Stephen Curry have such a high career TS% (62%+)?
Curry combines elite three-point shooting (42%+ on high volume) with excellent free throw shooting (90%+) and surprising efficiency at the rim (65%+). The three-point volume creates a massive TS% advantage because each three-pointer adds 3 points to the numerator with only 1 attempt in denominator.
Disclaimer
This True Shooting Percentage calculator is provided for informational and analytical purposes only. The TS% formula using the 0.44 coefficient represents the industry standard as published by the NBA, ESPN, and Basketball Reference. However, individual game contexts may vary, and the 0.44 coefficient is an empirical average, not a per-possession exact value. For official statistical analysis, always reference league-certified data sources and consider sample size, opponent quality, and game situation. This tool does not constitute professional scouting advice or player performance guarantees. Toolraxy provides this tool as-is without warranties regarding fitness for any particular analytical purpose. Users assume full responsibility for how they apply calculated TS% results to basketball analysis, player evaluations, or strategic decisions.
