On-base plus slugging in one number. Enter a hitter's line to get OBP, SLG, and OPS together.
Enter the hitter's season or game line. Hit-by-pitch and sacrifice flies are optional — leave them blank if you don't track them.
Total Hits includes all doubles, triples, and home runs — singles are worked out automatically.
OPS — On-base Plus Slugging — is the most popular single-number measure of a hitter's value. It adds two stats together: how often a hitter reaches base (OBP) and how much power they hit for (SLG). This calculator works out all three at once.
To use the calculator:
OPS stands for On-base Plus Slugging. It's the sum of two rate stats: OPS = OBP + SLG. The idea is that good hitting comes from two things — getting on base and hitting for power — and OPS captures both in one number. It's popular because it's far more telling than batting average but still easy to read.
On-Base Percentage (OBP) measures how often a hitter reaches base, counting hits, walks, and hit-by-pitch: (H + BB + HBP) ÷ (AB + BB + HBP + SF). Unlike batting average, it rewards drawing walks.
Slugging Percentage (SLG) measures power by counting total bases per at-bat. A single is one base, a double two, a triple three, and a home run four. So SLG = Total Bases ÷ AB, which is why extra-base hits carry far more weight than singles.
For Major League Baseball, these are the general benchmarks:
League-average OPS usually sits near .720 to .740. Amateur benchmarks vary, so treat these as a guide.
Batting average only counts hits and treats a single the same as a home run, while ignoring walks entirely. OPS fixes both problems — it rewards getting on base any way and rewards power. That's why it's a much better measure of total offensive value. Start with the batting average calculator for the simple version, then use OPS for the complete picture. You can explore every tool on the tools page.
What counts as a total base?
A single is 1 total base, a double is 2, a triple is 3, and a home run is 4. Slugging percentage adds these up and divides by at-bats.
Can OPS be over 1.000?
Yes. Elite power hitters can post an OPS above 1.000 in a great season — it means their OBP and SLG combined clear 1.000. It's rare and a mark of an exceptional year.
Can I use this for softball?
Yes. OBP, SLG, and OPS are calculated the same way in softball as in baseball.