OPS Calculator — From Batting Counts

Calculate on-base plus slugging from the underlying batting counts. The tool builds OBP and SLG separately, then adds their full fractions before rounding the final OPS. You can inspect both components and the total-base breakdown rather than adding two already rounded headline statistics.

How to use this tool

1. Use official scoring counts from one consistent period.
2. Enter whole-number totals; include home runs in total hits.
3. Check the walk, hit-by-pitch and sacrifice-fly counts.
4. Read the conventional display and inspect the supporting counts.

Formula

OPS = (H + BB + HBP) / (AB + BB + HBP + SF) + (H + 2B + 2×3B + 3×HR) / AB

Here H already includes doubles, triples and home runs; the added terms supply their extra bases. The two fractions have different denominators. At-bats must be positive, and the hit categories must be consistent.

Example

Use 100 at-bats, 30 hits, 5 doubles, 2 triples, 3 home runs, 10 walks, 2 hit-by-pitches and 3 sacrifice flies. OBP is 42/115 and SLG is 48/100. Their sum is 0.845217…, so OPS displays .845.

Reading the result

A rounded rate summarizes the supplied sample. This page does not determine championship eligibility or account for opponent quality. Keep numerator and denominator totals when combining records instead of combining rounded display values.