Sports

OPS Calculator (On-Base Plus Slugging)

Enter the batter’s season or game totals.

By TheCalcTools Updated Formula checked and tested

Your numbers

Your results

OPS
OPS
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On-base percentage (OBP)
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Slugging (SLG)
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Batting average
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Total bases
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Isolated power (ISO)
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OPS Calculator (On-Base Plus Slugging) by TheCalcTools

How the OPS Calculator (On-Base Plus Slugging) works

OBP = (H + BB + HBP) ÷ (AB + BB + HBP + SF) measures how often a batter reaches base. SLG = total bases ÷ at-bats measures power, with singles 1, doubles 2, triples 3 and home runs 4 bases.

OPS adds them together: a simple, widely used measure of overall hitting. Around .800 is good and .900 or more excellent in MLB.

The formula

OPS = OBP + SLG; total bases = H + 2B + 2×3B + 3×HR

Worked example

Using the default values shown in the calculator:

At-bats520
Hits152
Doubles31
Triples3
Home runs27
Walks61
Hit by pitch5
Sacrifice flies4
  1. OBP 0.369 + SLG 0.519 = OPS 0.889.

Result:

OPS0.889
On-base percentage (OBP)0.369
Slugging (SLG)0.519
Batting average0.292
Total bases270
Isolated power (ISO)0.227

Frequently asked questions

What is OPS+?

OPS adjusted for park and league and scaled so 100 is average; it needs league data.

Sources and further reading

Baseball Batting Average, OBP, SLG and OPS CalculatorEnter at-bats, hits by type, walks and sacrifice flies to get AVG, OBP, SLG and OPS ERA and WHIP Calculator (Baseball Pitching)Enter innings pitched, earned runs, hits, walks and strikeouts to get ERA and WHIP True Shooting Percentage Calculator (TS%)Enter the player's points and shooting numbers Win Percentage CalculatorEnter wins, losses and ties to get the winning percentage

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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.