Basketball True Shooting Percentage Calculator (TS% and eFG%)
True shooting percentage, effective field goal percentage, plain field goal percentage and points per shooting attempt from a player's box score.
Results
What this tool does
Field goal percentage treats a three like a two and ignores free throws, so it undervalues good three-point shooters and players who get fouled a lot. Effective field goal percentage gives a made three 1.5 times the credit, and true shooting goes further, counting free throws with the 0.44 factor, an estimate of how many possessions a trip to the line uses (and-ones and technical fouls make it less than 0.5). In recent NBA seasons the league average TS% has been close to 58 %, so above 60 % is efficient. The factor was tuned on NBA data; leagues with different foul rules may differ slightly.
Formula
TS% = PTS ÷ (2 × (FGA + 0.44 × FTA)) · eFG% = (FGM + 0.5 × 3PM) ÷ FGA
Variables
| Symbol | Meaning | Unit |
|---|---|---|
pt | Points scored | — |
fm | Field goals made (FGM) | — |
fa | Field goals attempted (FGA) | — |
t3 | Three-pointers made (3PM) | — |
ft | Free throws attempted (FTA) | — |
TS | True shooting percentage (TS%) | % |
EF | Effective field goal percentage (eFG%) | % |
FG | Field goal percentage (FG%) | % |
TA | True shooting attempts | — |
PP | Points per shooting attempt | — |
Worked example
- Points scored25
- Field goals made (FGM)9
- Field goals attempted (FGA)18
- Three-pointers made (3PM)3
- Free throws attempted (FTA)5
- True shooting percentage (TS%)61.9 %
- Effective field goal percentage (eFG%)58.3 %
- Field goal percentage (FG%)50.0 %
- True shooting attempts20.2
- Points per shooting attempt1.238
Limitations
- The calculation runs at full precision and only the display is rounded. If you copy an intermediate value and retype it, small differences can appear.