OPS Calculator

On-base plus slugging from a full slash-line input, the one-number summary of offensive production.

What is OPS?

On-base plus slugging — literally OBP + SLG — is baseball's favorite one-number offense summary. It marries getting on base with power, and it correlates with run production far better than either half alone. .800 is a good hitter; .900 is a star; 1.000 is an MVP season.

How the calculator works

Enter the full counting line; the tool computes OBP and SLG separately, then sums them, and labels the result against league norms.

Common use cases

  • Card and record-book debates
  • Fantasy roto offense valuation
  • Quick comparisons across eras (park-adjust for real rigor)

Formula & context

OPS treats OBP and SLG equally though OBP is worth slightly more per point — wRC+ fixes that weighting, but OPS remains the people's champion.

Frequently Asked Questions

What is a good OPS?

.800 is a good hitter, .900 is a star, 1.000 is an MVP season.

Who has the highest career OPS?

Babe Ruth, at 1.164 — not close.

Why not just use wRC+?

wRC+ is park- and era-adjusted; OPS is instant and everywhere.

Privacy & Your Data

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