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Baseball OPS Calculator

Calculate OPS (On-base Plus Slugging), the all-in-one batting metric, by entering OBP and SLG directly or by entering hits, walks, hit by pitch, at bats, sacrifice flies, and total bases. OBP, SLG, and a rating are shown at once.

Input

Input method

Total bases = singles + doubles×2 + triples×3 + home runs×4. Enter the figure that adds the extra-base value of each hit.

Result

OPS (OBP + SLG)

.916

On-base percentage (OBP)

.383

Slugging percentage (SLG)

.533

Rating

One of the league's best

ItemFormulaValue
On-base percentage (OBP)(Hits + Walks + HBP) ÷ (AB + Walks + HBP + SF).383
Slugging percentage (SLG)Total bases ÷ At bats.533
OPSOBP + SLG.916
On-base denominator (plate appearances estimate)AB + Walks + HBP + SF509

How it works

  • OPS (On-base Plus Slugging) is a combined batting metric that adds on-base percentage to slugging percentage. Because it sums a hitter's ability to reach base and to hit for power into one number, it is handy for quickly comparing batters.
  • On-base percentage = (hits + walks + hit by pitch) ÷ (at bats + walks + hit by pitch + sacrifice flies). Slugging percentage is total bases (counted as 1 for a single, 2 for a double, 3 for a triple, 4 for a home run) divided by at bats.
  • This tool supports both entering OBP and SLG directly and entering hits, walks, hit by pitch, at bats, sacrifice flies, and total bases to compute them automatically.
  • Following baseball convention, values are shown to three decimal places (e.g. .300), dropping the leading zero just like batting average.
  • As a rough guide, an OPS around .700 is average, .800 or higher is excellent, .900 or higher is among the league's best, and 1.000 or higher marks a franchise-caliber hitter. Standards vary by league and season, so treat these as a reference only.
  • If you do not know the number of sacrifice flies, you can leave it at 0 for an estimate, but enter the official figure for an accurate on-base percentage.