Batting Average Calculator

The batting average is baseball's most familiar hitting statistic. It tells you, in a single three-decimal number, how often a batter gets a hit when they put a fair at-bat in play. A hitter batting .300 — three hundred — gets a hit in roughly 30% of their at-bats and is considered an excellent contact hitter. This calculator divides your hits by your at-bats and formats the result the way every scorecard and broadcast displays it.

The Batting Average Formula

Crucially, an at-bat is not the same as a plate appearance. Walks, hit-by-pitches, sacrifice flies, and sacrifice bunts do not count as at-bats, so they neither help nor hurt your batting average. Only outcomes that end in a hit or an out on a batted ball (plus strikeouts) count.

Worked Example

A hitter records 150 hits in 500 at-bats:

• Divide hits by at-bats: 150 / 500 = 0.300
• Express to three decimals and drop the leading zero: .300

That is a benchmark "three hundred" season — historically the dividing line for an elite contact hitter.

Batting Average Benchmarks

What Counts as an At-Bat?

Getting the denominator right is the most common source of confusion. A plate appearance becomes an official at-bat when it ends in a hit, an out on a batted ball, a strikeout, or reaching on an error or fielder's choice. It is not an at-bat when the batter walks, is hit by a pitch, hits a sacrifice fly or bunt, or is awarded first base on interference. This is why a hitter can have far more plate appearances than at-bats over a season.

Why Average Doesn't Tell the Whole Story

Batting average treats a single and a home run identically and ignores walks entirely. A patient hitter with a modest average but high on-base ability can be more valuable than a free-swinger hitting .290. That is why modern evaluation pairs average with on-base percentage (OBP) and slugging percentage (SLG) — see those calculators for the fuller picture.

A Quick History

Batting average has been tracked since the 19th century, and the .400 season — a hit in two of every five at-bats — became baseball's gold standard of contact hitting. No major leaguer has reached .400 over a full season since 1941, a testament to how the modern game's pitching, relief specialists, and defensive positioning have compressed averages.

Note: This tool is for educational purposes. Official averages round using standard scoring conventions and may differ marginally.