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On Base Percentage Calculator

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Number of At Bats
Number of Times on Base

How to Calculate On Base Percentage
Calculating a player's "On Base Percentage"is a very simple formula. You simply take the number of times a player makes it on base and divide it by the total number of times at the plate. It does not matter whether it is a walk, a hit, or reached on error, they all count in the on base percentage. The number is then rounded to the nearest thousandths place.
Example: For the season you batted 90 times and reached base 50 times.
50 ÷ 90 = 0.5555 rounded to the nearest thousandths place, means you batted .556 for the season!