Formula and method
Total bases = 1B + 2×2B + 3×3B + 4×HR. SLG = total bases ÷ official at-bats.
Worked example
With 30 singles, 10 doubles, 2 triples, and 8 home runs, total bases = 30 + 20 + 6 + 32 = 88. Across 200 at-bats, SLG = 88 ÷ 200 = .440.
What the result means
Slugging measures total bases earned on hits per official at-bat. Despite its name, it is not limited to values below 1.000.
Common input mistakes
- Adding bases gained after the hit to total bases.
- Including walks or hit-by-pitches as total bases.
- Entering more hits than official at-bats.
Scope and limitations
This tool uses hit types and official at-bats only. It does not measure overall offensive value or calculate on-base percentage.
This is a deterministic calculation aid, not a player evaluation, prediction, fantasy recommendation, or betting tool. No live statistics are fetched.
Privacy
Entered statistics are calculated in this browser tab. This tool has no account, input submission, URL state, or persistent storage for your entries.