Baseball Batting Average Calculator
Calculates a batter's batting average by dividing total hits by official at-bats. Use it after a game, a season, or any stretch of play to gauge hitting consistency.
About this calculator
Batting average (BA) is the foundational hitting statistic in baseball, defined as BA = hits / at-bats. It expresses the proportion of official at-bats in which a batter records a hit, reported as a three-decimal fraction (e.g., .300). At-bats exclude walks, hit-by-pitches, sacrifice flies, and sacrifice bunts, making BA a pure measure of contact success. A .300 average is widely considered excellent at the professional level, while the MLB average typically hovers near .250. Although modern analytics supplement BA with on-base percentage and slugging, it remains the most universally recognized hitting metric and is used to compare players across eras.
How to use
Suppose a player recorded 45 hits in 150 at-bats over a half-season. Plug those values in: BA = 45 / 150 = 0.300. That result is expressed as .300 — a strong average by any standard. If the same player later adds 10 more hits in 40 at-bats, update the totals to 55 hits and 190 at-bats: BA = 55 / 190 ≈ 0.289. The calculator instantly recalculates so you can track trends game by game or across a full season.
Frequently asked questions
What is a good batting average in baseball?
A batting average of .300 or above is generally considered excellent at the professional level, placing a hitter among the top performers in the league. The MLB league-wide average typically falls between .240 and .260 in the modern era. At the amateur or recreational level, expectations vary widely depending on the competition. Context matters — a .270 average with high power numbers can be more valuable than a .300 average with little extra-base production.
How is batting average different from on-base percentage?
Batting average only counts hits divided by at-bats, completely ignoring walks, hit-by-pitches, and sacrifice flies. On-base percentage (OBP) includes all ways a batter reaches base safely — hits, walks, and hit-by-pitches — divided by plate appearances. This makes OBP a broader measure of a batter's ability to avoid making outs. Modern analysts often prefer OBP or OPS (OBP + slugging percentage) over batting average for evaluating overall offensive value.
Why do walks not count as at-bats in batting average calculations?
Walks are intentionally excluded from at-bats because they reflect the pitcher's decision to issue a free pass rather than the batter's ability to make contact. Including walks would penalize patient hitters who draw many bases on balls, distorting the statistic's purpose as a contact-quality metric. The same logic applies to hit-by-pitches and sacrifice flies — none of these outcomes result from a batter attempting to hit the ball. Keeping at-bats as a 'pure' count of competitive hitting opportunities makes batting average a consistent, era-neutral comparison tool.