Determine Your Bat Size by Age

Determine Your Bat Size By Age

Jon Hoelter,

There are three standard barrel sizes for baseball bats: 2 ¼, 2 5/8, and 2 ¾ (full-size). The full-size barrels usually have a difference of 5 between their length and weight (conforming to rules set by many leagues and states regarding high school-aged players). Smaller bats should be selected with a difference of 8 or more between length and weight. For many young players, a 21 ounce bat that is 30 inches long is ideal.

Below is a rough guide for bat selection. It is simply a place to start and depends not only on the size of the player but the level of competition (better pitching may require a lighter bat). It is better to err on the light side rather than the heavy side. Today’s power hitters in the major leagues use lighter bats than power hitters of yesterday.

AgeWeight MinimumWeight MaximumLength MinimumLength MaximumBarrel Size
6-717 Ounces19 Ounces24 Inches28 Inches2 ¼
819 Ounces21 Ounces27 Inches30 Inches2 ¼
920 Ounces23 Ounces28 Inches30 Inches2 ¼
1020 Ounces23 Ounces28 Inches31 Inches2 ¼
1121 Ounces24 Ounces29 Inches31 Inches2 ¼ to 2 5/8
1223 Ounces25 Ounces30 Inches33 Inches2 ¼ to 2 ¾
13-1423 Ounces28 Ounces30 Inches33 Inches2 ¼ to 2 ¾
15 +24 Ounces30 Ounces30 Inches34 Inches2 ¾

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