Effective FG%calculator.
The shooting percentage adjusted for the fact that a three is worth one and a half times a two. Simpler than true shooting, because it leaves free throws out of it.
Result
Enter at least one shot attempt to get a result.
Nothing leaves your device
The maths runs in your browser. The numbers you type are never sent to a server and never stored. There is nothing to accept, and nothing to delete afterwards.
What the calculator asks for
The inputs are the columns of our stat sheet, one for one. If you use it, you copy across without converting anything.
| Input | Where to find it |
|---|---|
| Two-point field goals made | 2PT + column |
| Two-point field goals missed | 2PT – column |
| Three-pointers made | 3PT + column |
| Three-pointers missed | 3PT – column |
The formula
eFG% = (FGM + 0.5 × 3PM) ÷ FGA
The 0.5 is exactly what a three adds: it is worth one and a half times a two, so every made three counts as half an extra make. That is the whole idea, and there is nothing else to it.
The standard advanced-statistics formula, as defined by Basketball-Reference.
A worked example
Same player again: 5 two-point field goals made of 11 attempted, 1 three made of 4 attempted.
- Field goals made: 5 + 1 = 6, on 15 attempts
- Raw percentage: 6 ÷ 15 = 40.0%
- Three-point bonus: 0.5 × 1 = 0.5
- eFG%: (6 + 0.5) ÷ 15 = 43.3%
eFG%: 43.3%, against 40.0% raw. The gap between the two is precisely what the three-point shot returned.
What a good eFG% looks like
eFG% almost always reads slightly below the same player's true shooting, because it ignores free throws — which are the easiest shots on the floor. These bands are for amateur basketball, over a season.
| eFG% over an amateur season | What it tells you |
|---|---|
| Below 38% | Shot selection needs work before shooting does. |
| 38 to 45% | The most common band. |
| 46 to 52% | Good shooting for amateur basketball. |
| Above 52% | Excellent, or a player who only attempts from close. |
What eFG% does not tell you
It ignores free throws, and therefore ignores everything a foul-drawing player does. Two players at the same eFG%, one of whom gets to the line twenty times, are not equally efficient — that gap is exactly what true shooting measures.
It says nothing about shot difficulty, or about who created the shot. An open catch-and-shoot and a contested pull-up count the same.
Like every percentage, it lies at low volume. Over three attempts it means nothing.
And it mechanically rewards the three-point shot, including when the three is the wrong choice. A youth team that hoists threes will post a flattering eFG% without playing any better.
Twelve players, fifteen fields
One player, one game,then do it again.
You just copied a line of numbers by hand to get one figure. There are twelve players on the roster and a game every week. PlayerTrackr logs it once, during the game, and keeps these numbers current on its own — for every player, from one game to the next.
