Both calculators below calculate On Base plus Slugging. The first OPS Calculator uses OBP and SLG (in decimal form) and the second OPS Calculator uses more stats. You can choose which one works for you.
Simple OPS Calculator
OPS Calculator
How to Use This OPS Calculator
This page contains both a simple OPS calculator and a more expanded version so you can choose which one to use based on the stats you have. To use the simple version, just enter OBP and SLG in decimal form, then press calculate to see On Base plus Slugging Percentage.
The second OPS calculator helps determine a player’s on-base plus slugging percentage using key offensive stats. This second tool requires inputs for walks, hit-by-pitches, at-bats, sacrifice flies, singles, doubles, triples, and home runs.
After entering these values, pressing calculate will display the on-base percentage, slugging percentage, and total OPS. The grading scale will provide context for the OPS result.
Enter Walks, Hit by Pitch, and At-Bats
To use this on base plus slugging percentage calculator, start by entering your walks, hit-by-pitches, and at-bats. Walks and hit-by-pitches count as reaching base safely, so they are added to the total. At-bats reflect how many times a player has a chance to hit without including walks or sacrifices.
Enter Sacrifice Flies
Next, to calculate OPS, enter your sacrifice flies. These factor into on-base percentage calculations because they represent plate appearances where a hitter made an out but still contributed by driving in a run.
Enter Singles, Doubles, Triples, and Home Runs
Next, enter totals for your singles, doubles, triples and homeruns because slugging percentage factors into calculating OPS. Singles count as one total base, doubles count as two, triples count as three, and home runs count as four. These are combined to calculate total bases and SLG.
Click Calculate OPS
Once all inputs are entered, pressing the calculate button will generate the OPS value along with individual on-base and slugging percentages.
The result will be categorized using a grading scale to show how strong the OPS is in relation to typical benchmarks.
Formula for OPS
How to Figure OPS in Baseball
OPS is the sum of on-base percentage and slugging percentage. It measures both how often a player gets on base and how much power they generate when they do make contact.
The formula for OPS is:
[(hits + walks + hit by pitch) ÷ (at-bats + walks + hit by pitch + sacrifice flies)]
+ [(total bases) ÷ (at-bats)]
OPS Calculation Example
A player with 80 hits, 40 walks, 5 hit-by-pitches, 300 at-bats, and 5 sacrifice flies who also has 20 doubles, 5 triples, and 15 home runs would calculate OPS as follows:
First, on-base percentage is determined:
(80 + 40 + 5) ÷ (300 + 40 + 5 + 5) = 0.378
Next, how to calculate slugging percentage:
[(40 + (20×2) + (5×3) + (15×4)] ÷ 300 = 0.507
Finally, OPS is calculated as:
0.378 + 0.507 = 0.885
OPS Explained
What Is OPS in Baseball
OPS stands for on-base plus slugging and measures a hitter’s overall offensive value. It combines on-base percentage, which shows how often a player reaches base safely, and slugging percentage, which represents how many bases a player earns per at-bat.
The higher the OPS, the more valuable the hitter is in terms of both reaching base and generating extra-base hits. Calculating OPS is widely used in modern baseball analysis because it balances two of the most important aspects of hitting.
Players with high OPS numbers are typically among the best offensive contributors in a lineup. By combining on-base ability with slugging ability, OPS provides a quick and effective way to compare hitters.
Why OPS Is Important in Baseball
OPS measures overall hitting ability. A high OPS indicates that a hitter gets on base frequently and produces extra-base hits at a high rate.
This stat helps coaches, analysts, and scouts evaluate how much a player contributes offensively. By combining on-base percentage and slugging percentage, OPS accounts for both a hitter’s ability to avoid making outs and their ability to hit for power.
This OPS calculator will tell a better story than batting average. Batting average only measures how often a player gets a hit per at-bat but does not consider how often they reach base via walks or how much damage they do with extra-base hits. For example, a home run is more valuable than a single, even though both are a single hit.
A player with a .250 average but a .900 OPS is more valuable than a player hitting .300 with little power or few walks. High walk rates and strong power numbers contribute to a player’s overall offensive value, which OPS captures more effectively than traditional batting average.
Calculating OPS helps compare hitters across different playing styles and eras. Walk-heavy players and power hitters are evaluated more fairly with OPS than with batting average or slugging percentage alone.
A player who takes many walks may have a lower batting average but a high OPS, making them just as effective offensively as a hitter who collects a high number of hits but has lower power and on-base ability.
OPS vs. Other Advanced Metrics
Although this on base plus slugging percentage calculator can help identify offensive value, there are better, more advanced stats. For example, weighted on-base average (wOBA) improves upon OPS by assigning different run values to different offensive events.
OPS treats all hits and walks as equal when added together, but wOBA assigns higher weights to home runs than to singles and gives slightly less value to walks than to actual hits. This provides a more accurate measure of offensive production.
OPS+ adjusts OPS for park factors and league averages. Ballparks can have significant effects on hitting numbers, so OPS+ ensures that players from hitter-friendly parks are not unfairly compared to those from pitcher-friendly parks.
An OPS+ of 100 is considered league average, while numbers above 100 indicate above-average offensive performance. Slugging percentage and on-base percentage alone can sometimes be misleading.
A player with a high on-base percentage but little power, such as someone with a .400 OBP and a .360 slugging percentage, might not drive in as many runs as a power hitter. On the other hand, a player with a high slugging percentage but a low on-base percentage, such as a .550 slugging percentage and a .290 on-base percentage, might hit for power but struggle to make consistent contact or get on base.
Calculating OPS balances both aspects of hitting to provide a more complete evaluation. To figure OBP, visit our on base percentage calculator.
Secondary Average (SECA) is another way of evaluating offensive production. It isolates extra-base hits, walks, and stolen bases to highlight a player’s ability to generate offense beyond just making contact.
OPS Chart
What is a good OPS in baseball?
An OPS over .800 in baseball is consider to be good.
Our OPS calculator at the top of the page outputs a grade for each OPS. But you can also use this chart to evaluate OPS results.
| OPS | Rating |
|---|---|
| Below .650 | Poor |
| .650 – .750 | Below Average |
| .750 – .800 | Average |
| .800 – .850 | Good |
| .850 – .900 | Great |
| Above .900 | Elite |