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MLB On-Base + Slugging (OPS) Calculator

OPS = OBP + SLG — combined hitting effectiveness.

Calculates On-Base Percentage (OBP), Slugging Percentage (SLG), and OPS for a baseball hitter from plate appearance statistics.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

OBP=(H+BB+HBP)/(AB+BB+HBP+SF); SLG=(1B+2×2B+3×3B+4×HR)/AB

In depth

Calculates On-Base Percentage (OBP), Slugging Percentage (SLG), and OPS for a baseball hitter from plate appearance statistics.