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Batting average calculator

Compute a baseball or softball batting average from hits and at-bats.

ERA (earned run average) calculatorEarned run average is the classic pitching stat: the earned runs a pitcher allows per nine innings. ERA = (earned runs × 9) ÷ innings pitched. Innings use the .1 = ⅓, .2 = ⅔ notation, so 180.2 means 180 and two-thirds innings.OPS (on-base plus slugging) calculatorOPS 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.At-bats per home run (AB/HR) calculatorAt-bats per home run shows how often a hitter goes deep: AB/HR = at-bats ÷ home runs. A lower number means more frequent power — elite sluggers sit around one homer every 10–15 at-bats.Slugging percentage (SLG) calculatorSlugging 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.Total bases (TB) calculatorTotal 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).WHIP (walks + hits per inning pitched) calculatorWHIP measures how many baserunners a pitcher allows per inning via walks and hits: WHIP = (hits + walks) ÷ innings pitched. Lower is better — an elite WHIP is under 1.00. Innings use the .1 = ⅓, .2 = ⅔ notation.WAR (Wins Above Replacement) calculator — simplifiedA transparent, educational estimate of Wins Above Replacement. For a position player it builds batting runs from a wOBA-style comparison of the hitter's OBP/SLG to the league, adds baserunning and a positional adjustment, then converts runs above replacement to wins (÷ runs per win, default 10). For a pitcher it works from ERA versus the league. It is a teaching model, not official fWAR or bWAR.Basketball rebound percentage (TRB%) calculatorEstimate the percentage of available rebounds a player grabbed while on the court (TRB%).

Need Batting average? The Batting average calculator derives it from Hits, At-bats in one step. For instance, with Hits = 50 and At-bats = 160 it returns Batting average = 0.313.

How to use it

  1. Enter your values: Hits, At-bats.
  2. Read the result instantly: Batting average.

Frequently asked questions

How does the Batting average calculator work?

It takes Hits and At-bats and derives Batting average from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

2 values: Hits and At-bats. Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Hits = 50 and At-bats = 160, the calculator returns Batting average = 0.313. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

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?

Assuming tie-breaks work the same everywhere. Goal difference, head-to-head and goals scored are applied in a different order by nearly every competition, and the order decides the table.

What is the difference between the Batting average calculator and the ERA (earned run average) calculator?

This one returns Batting average; the ERA (earned run average) calculator returns ERA and Innings (decimal). 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?

At-bats per home run (AB/HR) calculator and Slugging percentage (SLG) calculator — they come up in the same task often enough to be worth a second tab.

Where do the figures come from, and how current are they?

Fixture counts and point totals are pure combinatorics and hold for any competition. The tie-break order is set by each governing body's own regulations — check the one you are actually in.

Further reading

All guides
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.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.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.ExplainerSleeping Bag Temperature Ratings, and What Comfort Actually MeansThe numbers on a sleeping bag come from ISO 23537-1, which publishes four figures and lets retailers print one. The standard measures a heated manikin's heat loss — so it measures insulation, and its own test mat is R 4.8. Put the same bag on an R 1.5 pad and the heat leaving through your back more than triples.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.