ERA Calculator
Earned run average.
Open →Find a batting average from hits and at-bats.
| As a percentage | — |
|---|---|
| Hits | — |
| At-bats | — |
| — |
A batting average is hits divided by at-bats, written as a three-decimal number without the leading zero — 50 hits in 150 at-bats is .333, read as “three thirty-three.” It measures how often a batter gets a hit.
A .300 average is the traditional mark of an excellent hitter; .250 is roughly average, and below .200 (the “Mendoza line”) is weak. Walks and sacrifices don’t count as at-bats, so they don’t lower the average.
batting average = hits ÷ at-bats
Divide hits by at-bats. 50 hits in 150 at-bats is .333.
.300 is excellent, .250 is about average, and under .200 is poor.
No — walks, hit-by-pitches and sacrifices aren’t at-bats, so they don’t affect the average.
Earned run average.
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