Basketball eFG% Calculator
Basketball eFG weights observed made threes as 1.5 total made-shot equivalents; threes subset of made, not true shooting or box-score efficiency.
Description
Effective field-goal percentage gives a made three an extra half made-shot equivalent.
Effective field-goal percentage gives a made three an extra half made-shot equivalent. It excludes free throws.1
The returned values include Effective field goal percent. The How section below explains the calculation, input rules and interpretation.
When to use Basketball eFG% Calculator
Use Basketball eFG% Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No true shooting, box-score efficiency or future scoring is inferred.
Prepare the observed race, match or training records and the stated units. Supply independently verified rule editions, calibration tables and targets where requested.
How to use Basketball eFG% Calculator and understand its results
- Prepare the observed race, match or training records and the stated units. Supply independently verified rule editions, calibration tables and targets where requested.
- Enter observedFieldGoalsMade, observedThreePointFieldGoalsMade, observedFieldGoalsAttempted using the field table and calculation rules, then run the tool.
- Read effectiveFieldGoalPercent. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| observedFieldGoalsMade | Observed field goals made | number | Required |
| observedThreePointFieldGoalsMade | Observed three point field goals made | number | Required |
| observedFieldGoalsAttempted | Observed field goals attempted | number | Required |
Enter integer attempts 1–1000000, made goals 0–attempts and made threes 0–made goals. Return percentage, which may exceed 100.
eFG%=100×(FGmade+.5×threesMade)/FGA Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| effectiveFieldGoalPercent | Effective field goal percent | number |
{
"input": {
"observedFieldGoalsMade": 10,
"observedThreePointFieldGoalsMade": 4,
"observedFieldGoalsAttempted": 20
},
"output": {
"effectiveFieldGoalPercent": 60
}
}Limitations and assumptions
No true shooting, box-score efficiency or future scoring is inferred.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Basketball True Shooting % Calculator: True shooting estimates points per two shot-attempt equivalents. Free-throw weighting is an explicit approximation. For a complementary task, use Free Throw Rate Attempted Calculator: Free-throw attempt rate uses FTA/FGA. It is a ratio that can exceed one and differs from made-free-throw conventions.
References
-
Basketball eFG% Calculator — tool.io
Similar or alternative tools
- Basketball True Shooting % Calculator
True shooting estimates points per two shot-attempt equivalents. Free-throw weighting is an explicit approximation.
- Free Throw Rate Attempted Calculator
Free-throw attempt rate uses FTA/FGA. It is a ratio that can exceed one and differs from made-free-throw conventions.