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Slugging percentage (SLG) calculator

Slugging percentage measures a hitter's power by total bases per at-bat: SLG = (1B + 2·2B + 3·3B + 4·HR) ÷ AB. Unlike batting average, it weights extra-base hits, so a slugger who hits doubles and homers scores far higher than a singles hitter.

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Need Slugging percentage (SLG), Total bases (TB)? The Slugging percentage (SLG) calculator derives it from Singles (1B), Doubles (2B), Triples (3B), Home runs (HR), At-bats (AB) in one step. For instance, with Singles (1B) = 15, Doubles (2B) = 5, Triples (3B) = 2, Home runs (HR) = 3 and At-bats (AB) = 100 it returns Slugging percentage (SLG) = .430 and Total bases (TB) = 43.

How to use it

  1. Enter your values: Singles (1B), Doubles (2B), Triples (3B), Home runs (HR), At-bats (AB).
  2. Read the result instantly: Slugging percentage (SLG), Total bases (TB).

Frequently asked questions

How does the Slugging percentage (SLG) calculator work?

It takes Singles (1B), Doubles (2B), Triples (3B), Home runs (HR) and At-bats (AB) and derives Slugging percentage (SLG) and Total bases (TB) from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

5 values: Singles (1B), Doubles (2B), Triples (3B), Home runs (HR) and At-bats (AB). Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Singles (1B) = 15, Doubles (2B) = 5, Triples (3B) = 2, Home runs (HR) = 3 and At-bats (AB) = 100, the calculator returns Slugging percentage (SLG) = .430 and Total bases (TB) = 43. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Singles (1B) = 30, Doubles (2B) = 10, Triples (3B) = 4, Home runs (HR) = 6 and At-bats (AB) = 200 instead, Total bases (TB) goes from 43 to 86 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Singles (1B) = 8, Doubles (2B) = 3, Triples (3B) = 1, Home runs (HR) = 2 and At-bats (AB) = 50, Total bases (TB) comes out at 25. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Running a league or a tournament: how many fixtures a format produces, how the table resolves ties, and what a team still needs to qualify.

What is the most common mistake?

Comparing two figures produced under different rules. A percentage over ten attempts and one over two hundred are not the same claim; the order of tie-breaks, the way a rating is adjusted and what even counts as an attempt are each set by the competition, not by the sport. The number means something next to the rulebook it came from and very little without it.

What is the difference between the Slugging percentage (SLG) calculator and the OPS (on-base plus slugging) calculator?

This one returns Total bases (TB); the OPS (on-base plus slugging) calculator returns On-base percentage (OBP) and OPS. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Basketball rebound percentage (TRB%) calculator is the closest one after this: Estimate the percentage of available rebounds a player grabbed while on the court (TRB%).

What else is worth having open alongside it?

Basketball shooting percentage calculator and Effective field goal percentage (eFG%) calculator — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
ExplainerOPS Is a Flawed Sum, and Still the Most Useful Number on the CardOPS adds two fractions with different denominators, which as arithmetic is indefensible. It survives because it tracks run scoring far better than batting average and costs nothing to compute — but it underpays on-base ability, and OPS+ does not fix that.ComparisonTrue Shooting Percentage, and Why Field Goal Percentage MisleadsField goal percentage counts a three-pointer and a layup as the same event and ignores free throws entirely. eFG% fixes the first problem, TS% fixes both — and the ranking of three players changes at every step.ExplainerUsage Rate Is Zero-Sum: Five Players Always Add to a Hundred18 shots, 8 free throws and 3 turnovers in 36 minutes gives 29.3 % usage. Five players sharing a team's whole box score get exactly 20 % each — the number is a share, not a skill.ExplainerSix Rebounds Can Beat Ten, and the Difference Is the DenominatorTen rebounds in 32 minutes of a game with 82 boards is 18.3 %. Six rebounds in 18 minutes of the same game is 19.5 % — a better rate from a smaller number.ExplainerHow a Golf Handicap Is Actually Calculated Under the World Handicap SystemBest 8 of your last 20 score differentials, averaged, and no 0.96 multiplier — that disappeared in 2020. Here is the full chain from a gross 92 to a Course Handicap of 17, with the numbers worked out.ExplainerExpected Goals: What xG Actually MeasuresxG is the fitted probability that a shot with a given set of features becomes a goal — a model output, not an observation. A worked match, the binomial arithmetic that says one game is far too few shots, and the limits nobody quotes.