The Average Bat Size for High School Fast Pitch

Using the right bat can make the difference between becoming the next Hank Aaron or becoming the next strike-out. A winning high school fast pitch swing starts with an appropriately sized bat.

  1. Size Measurements

    • Baseball bats are measured using their length to weight ratio, a negative number that represents how many ounces a bat weighs compared to its length in inches. For example, a 32-inch bat that weighs 28 oz. is a minus 4. Most high school league rules only allow minus 3 bats.

    Length

    • Average high school bat measurements usually apply to those hitters between 13 and 18 years of age. According to www.baseball-bats.net, the average bat length for 13- to 14-year-olds is 31 inches to 32 inches, and the average bat length for 15- to 16-year-olds is 32 inches to 33 inches.

    Weight

    • The average weight for a high school fast pitch bat for players 5 feet 6 inches to 5 feet 8 inches is 27 to 28 oz. For those 5 feet 9 inches and taller, the average high school fast pitch bat weighs 30 to 33 oz. With the length to weight ratio, a bat measuring 33 inches long and weighing 30 oz. equals a minus 3 bat size.