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Slugging Percentage Calculator

Slugging percentage weights hits by how many bases they're worth, measuring a hitter's power per at-bat. Enter your hit breakdown and we derive singles and total bases automatically.

Slugging Percentage

Includes every hit type

Slugging percentage
Total bases
Formula

SLG = (1B + 2×2B + 3×3B + 4×HR) ÷ AB

Singles are derived automatically as hits minus extra-base hits.

How it works

Total bases = singles + 2×doubles + 3×triples + 4×home runs. Slugging percentage is total bases divided by at-bats. Because it rewards extra-base hits, two players with the same batting average can have very different slugging percentages.

Worked example

A hitter with 30 singles, 9 doubles, 1 triple, and 5 home runs has 30 + 18 + 3 + 20 = 71 total bases. In 160 at-bats that's 71 ÷ 160 = .444.

Frequently asked questions

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Sources

Last reviewed March 1, 2025. Rules and manufacturer charts change — verify against current official sources each season.