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Total bases (TB) calculator

Total bases counts every base a hitter earns from hits, weighting each by its value: TB = 1B + 2·2B + 3·3B + 4·HR. Add at-bats and it also returns the slugging percentage (TB ÷ AB).

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Need Total bases (TB), Slugging percentage (SLG)? The Total bases (TB) calculator derives it from Singles (1B), Doubles (2B), Triples (3B), Home runs (HR), At-bats (AB, optional → SLG) in one step. For instance, with Singles (1B) = 120, Doubles (2B) = 30, Triples (3B) = 5, Home runs (HR) = 25 and At-bats (AB, optional → SLG) = 550 it returns Total bases (TB) = 295 and Slugging percentage (SLG) = .536.

How to use it

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

Frequently asked questions

How does the Total bases (TB) calculator work?

It takes Singles (1B), Doubles (2B), Triples (3B), Home runs (HR) and At-bats (AB, optional → SLG) and derives Total bases (TB) and Slugging percentage (SLG) 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, optional → SLG). Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Singles (1B) = 120, Doubles (2B) = 30, Triples (3B) = 5, Home runs (HR) = 25 and At-bats (AB, optional → SLG) = 550, the calculator returns Total bases (TB) = 295 and Slugging percentage (SLG) = .536. 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) = 240, Doubles (2B) = 60, Triples (3B) = 10, Home runs (HR) = 50 and At-bats (AB, optional → SLG) = 1,100 instead, Total bases (TB) goes from 295 to 590 — 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) = 60, Doubles (2B) = 15, Triples (3B) = 3, Home runs (HR) = 13 and At-bats (AB, optional → SLG) = 275, Total bases (TB) comes out at 151. 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 Total bases (TB) calculator and the At-bats per home run (AB/HR) calculator?

This one returns Total bases (TB) and Slugging percentage (SLG); the At-bats per home run (AB/HR) calculator returns At-bats per home run (AB/HR). That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

OPS (on-base plus slugging) calculator is the closest one after this: OPS combines the two halves of hitting — getting on base and hitting for power — into one number: OPS = OBP + SLG. On-base percentage = (H + BB + HBP) ÷ (AB + BB + HBP + SF); slugging = (1B + 2·2B + 3·3B + 4·HR) ÷ AB, with singles = H − 2B − 3B − HR. It is the fastest all-round gauge of an offensive player.

What else is worth having open alongside it?

Slugging percentage (SLG) calculator and Basketball rebound percentage (TRB%) 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.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.How-toHow to Calculate Batting Average and What .300 MeansBatting average is hits divided by at-bats. Learn how to calculate it, why a .300 hitter is excellent and what counts as an at-bat in baseball.ComparisonERA, FIP and WHIP: Three Answers to One QuestionERA measures what happened, FIP measures only what the pitcher controls without his fielders, WHIP measures traffic allowed. Two pitchers can swap places entirely between them — and the gap between ERA and FIP is a forecast, not a verdict.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.