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How does OPS combine on-base percentage and slugging percentage?

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Green retro manual baseball scoreboard beyond an empty, neatly mowed baseball field with brown infield dirt and striped grass outfield. — Sabermetrics A scoreboard provides some – but not necessarily the most useful – data on player and team performances in baseball.

In the context of sabermetrics, OPS is a statistic that provides a comprehensive measure of a hitter's offensive performance by simply adding their on-base percentage and slugging percentage together.3

On-base percentage (OBP): Measures the frequency with which a batter reaches base via a hit, walk, or being hit by a pitch.1
Slugging percentage (SLG): Reflects a batter's ability to hit for power by calculating the total number of bases reached on hits divided by official at-bats.2

By combining these two metrics, OPS creates a single value that analysts use to evaluate how effectively a player reaches base and hits for extra bases, offering a more complete picture of a hitter's overall impact than either statistic alone.3