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⚾ OPS Calculator (On-Base Plus Slugging)

Enter a batter’s stats to calculate on-base percentage, slugging percentage, and combined OPS.

What this calculator does

OPS (on-base plus slugging) combines a hitter’s ability to get on base with their power at the plate into a single number. It’s widely used in modern baseball and softball analysis as a quick indicator of overall offensive value.

How the calculation works

OPS is simply OBP + SLG. On-base percentage is (Hits + Walks + Hit By Pitch) divided by (At Bats + Walks + Hit By Pitch + Sacrifice Flies). Slugging percentage is total bases divided by at bats, where total bases weight singles, doubles, triples, and home runs by 1, 2, 3, and 4 respectively.

League-average OPS is typically around .700-.750, while an OPS above .900 is generally considered excellent. This calculator is for general statistics reference and educational use.

Last reviewed August 2026