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On Base Percentage Calculator

Bases on Balls (Walks):
Times Hit By a Pitch:
At bats:
Sacrifice Flies:

About On Base Percentage Calculator

The On Base Percentage Calculator (OBP Calculator) is used to calculate the on base percentage (abbreviated OBP).

On Base Percentage Definition

In baseball statistics, on base percentage (OBP) is a measure of how often a batter reaches base for any reason other than a fielding error, fielder’s choice, dropped/uncaught third strike, fielder’s obstruction, or catcher’s interference. On base percentage is sometimes referred to as on-base average, as the statistic is rarely presented as a true percentage.

On Base Percentage Calculation Formula

On-base percentage is calculated using the following formula, where H is Hits, BB is Bases on Balls (Walks), HBP is times Hit By a Pitch, AB is At bats, and SF is Sacrifice Flies.

OBP = (H + BB + HBP) / (AB + BB + HBP + SF)


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