Batting Average Calculator Formula

Understand the math behind the batting average calculator. Each variable explained with a worked example.

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Formulas Used

Batting Average

avg = round(hits / at_bats * 1000) / 1000

Outs Made

outs = at_bats - hits

Hit Percentage

hit_pct = round(hits / at_bats * 10000) / 100

Hits Needed for .300

hits_needed_300 = ceil(0.300 * at_bats) - hits

Variables

VariableDescriptionDefault
hitsHits75
at_batsAt Bats250

How It Works

How Batting Average Is Calculated

Formula

AVG = Hits / At Bats

Batting average is expressed as a three-decimal number. A .300 average means getting a hit 30% of the time.

Benchmarks

  • .200: Below average (Mendoza line)
  • .250: League average
  • .300+: Very good
  • .350+: Elite
  • .400+: Historical rarity (last achieved in 1941)

    • Worked Example

    A player has 75 hits in 250 at-bats.

    hits = 75at_bats = 250
    1. 01AVG = 75 / 250 = 0.300
    2. 02Outs = 250 - 75 = 175
    3. 03Hit percentage = 30.0%

    Frequently Asked Questions

    What counts as an at-bat?

    An at-bat is a plate appearance that does not end in a walk, hit-by-pitch, sacrifice, or catcher interference.

    Is batting average still important?

    While still commonly used, modern analytics favor OBP (on-base percentage) and OPS as better measures of offensive value.

    What is a good batting average in youth baseball?

    In youth leagues, .400+ is common. As competition level increases, averages decrease. A .300 average is excellent at the high school level and above.

    Learn More

    Guide

    Understanding Batting Average - A Complete Guide to Baseball's Key Stat

    Learn how batting average is calculated, what makes a good average, and how it compares to modern baseball statistics like OBP and OPS.

    Ready to run the numbers?

    Open Batting Average Calculator