# What is my true shooting percentage?

Works out a basketball player’s true shooting percentage (TS%) from points, field goal attempts and free throw attempts, with the effective field goal percentage.

- Page: https://www.acalculator.org/sports/true-shooting-calculator
- JSON spec: https://www.acalculator.org/sports/true-shooting-calculator.json
- Version: 934bea236d5c

## Default answer

Example with the default inputs (Points 2,375, Field goal attempts 1,598, Free throw attempts 400, Field goals made 805, 3-pointers made 402): 2,375 points on 1,598 field goal and 400 free throw attempts is a true shooting percentage of 66.9%.

## Inputs

| Key | Label | Description |
| --- | --- | --- |
| pts | Points | The points scored. |
| fga | Field goal attempts | The 2-point and 3-point shots taken (FGA). |
| fta | Free throw attempts | The free throws taken (FTA). |
| fg | Field goals made | Optional: the 2-point and 3-point shots made (FG), for eFG%. |
| tp | 3-pointers made | Optional: the 3-point shots made (3P), for eFG%. |

## Outputs

| Key | Label | Description |
| --- | --- | --- |
| ts | True shooting percentage | Points ÷ (2 × (FGA + 0.44 × FTA)). |
| tsa | True shooting attempts | FGA + 0.44 × FTA. |
| ppsa | Points per shooting attempt | Points ÷ true shooting attempts: twice the TS%. |
| efg | Effective field goal percentage | (FG + 0.5 × 3P) ÷ FGA. |

## Method

TSA = FGA + 0.44 × FTA; TS% = PTS ÷ (2 × TSA); eFG% = (FG + 0.5 × 3P) ÷ FGA.

## Assumptions

- The 0.44 free throw factor is the one Basketball-Reference and the NBA use; it counts and-ones and three-shot fouls on average.
- TS% can pass 100% when most points come from free throws.

## Worked examples

1. pts = 2,375, fga = 1,598, fta = 400, fg = 805, tp = 402 gives ts = 66.939121%, tsa = 1,774, ppsa = 1.338782, efg = 62.953692%. Source: Basketball-Reference, Stephen Curry 2015-16 (2,375 points, 1,598 FGA, 805 FG, 402 3P, 400 FTA; TS% .669, eFG% .630), https://www.basketball-reference.com/players/c/curryst01.html (retrieved 2026-10-05); eFG% = (FG + 0.5 × 3P) ÷ FGA, https://www.basketball-reference.com/about/glossary.html (retrieved 2026-10-05).
2. pts = 30, fga = 20, fta = 10 gives ts = 61.47541%, tsa = 24.4. Source: EFG% = (FG + 0.5 × 3P) ÷ FGA, https://www.basketball-reference.com/about/glossary.html (retrieved 2026-10-05).
3. pts = 10, fga = 0, fta = 10 gives ts = 113.636364%, tsa = 4.4. Source: EFG% = (FG + 0.5 × 3P) ÷ FGA, https://www.basketball-reference.com/about/glossary.html (retrieved 2026-10-05).

## FAQ

### What is the true shooting percentage formula?

TS% = points ÷ (2 × (FGA + 0.44 × FTA)). The bracket is the true shooting attempts: field goal attempts plus 0.44 of each free throw attempt.

### Why 0.44 for free throws?

Most free throws come in pairs, but and-ones take one and fouls on threes take three. 0.44 is the average share of a shooting possession one free throw attempt uses, as Basketball-Reference and the NBA count it.

### What is a good true shooting percentage?

NBA league averages have been in the high 50s in recent seasons. Above 60% is efficient; Stephen Curry’s 2015-16 season was 66.9%.

### What is the difference between TS% and eFG%?

eFG% = (FG + 0.5 × 3P) ÷ FGA gives a three its extra point but leaves out free throws. TS% counts every point, free throws included.

### Can true shooting be over 100%?

Yes, when most points come from free throws. 10 of 10 free throws and no field goals is 10 ÷ (2 × 4.4) = 113.6%.

## Sources

- Basketball-Reference, Glossary: TS% = PTS ÷ (2 × TSA), TSA = FGA + 0.44 × FTA; eFG% = (FG + 0.5 × 3P) ÷ FGA. https://www.basketball-reference.com/about/glossary.html (retrieved 2026-10-05)
- Basketball-Reference, Stephen Curry: 2015-16 totals and TS% .669. https://www.basketball-reference.com/players/c/curryst01.html (retrieved 2026-10-05)