Baseball Batting Average, OBP, SLG and OPS Calculator
Enter at-bats, hits by type, walks and sacrifice flies to get AVG, OBP, SLG and OPS.
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Baseball Batting Average, OBP, SLG and OPS Calculator by TheCalcTools
How the Baseball Batting Average, OBP, SLG and OPS Calculator works
Batting average is hits divided by at-bats. On-base percentage adds walks and hit-by-pitches and divides by plate appearances that count (AB + BB + HBP + SF).
Slugging percentage weights hits by bases: singles 1, doubles 2, triples 3, home runs 4, divided by at-bats. OPS adds OBP and SLG into one quick measure of offence.
The formula
Worked example
Using the default values shown in the calculator:
| At-bats (AB) | 520 |
|---|---|
| Singles | 98 |
| Doubles | 32 |
| Triples | 3 |
| Home runs | 27 |
| Walks (BB) | 61 |
| Hit by pitch (HBP) | 5 |
| Sacrifice flies (SF) | 4 |
- Hits: 98 + 32 + 3 + 27 = 160; AVG = 160 ÷ 520 = 0.308.
- OBP = (160 + 61 + 5) ÷ (520 + 61 + 5 + 4) = 0.383. SLG = 279 ÷ 520 = 0.537.
- OPS = 0.920.
Result:
| Batting average (AVG) | 0.308 |
|---|---|
| On-base percentage (OBP) | 0.383 |
| Slugging percentage (SLG) | 0.537 |
| OPS (OBP + SLG) | 0.920 |
| Hits | 160 |
| Total bases | 279 |
| Isolated power (ISO) | 0.229 |
Frequently asked questions
What is a good OPS?
Roughly, .700 is about league average in Major League Baseball, .800 is good and .900 or more is excellent. League levels change from season to season.
Why are averages written without a leading zero?
It is a baseball convention: .300 means 0.300, or 30%.
Sources and further reading
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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.