# OPS Calculator (On-Base Plus Slugging)

URL: https://speedycalculator.com/calculators/sports/on-base-plus-slugging/
Last updated: 2026-10-30

> The OPS calculator combines on-base percentage and slugging percentage from singles, doubles, triples, home runs, walks, hit-by-pitches, at-bats and sacrifice flies, and also shows AVG and total bases.

## Inputs

- Singles
- Doubles
- Triples
- Home runs
- Walks
- Hit by pitch
- At-bats
- Sacrifice flies

## Results

- Hits
- Total bases
- Batting average
- On-base percentage
- Slugging percentage
- OPS
- Rating

## Formula

```
TB = 1B + 2·2B + 3·3B + 4·HR,  SLG = TB ÷ AB,  OBP = (H + BB + HBP) ÷ (AB + BB + HBP + SF),  OPS = OBP + SLG
```

## Explanation

OPS rewards both getting on base and hitting for power. It is a quick, popular summary of a hitter: .900 or better is excellent, .700 is about average.

### How to use the OPS Calculator

- **Singles**
- **Doubles**
- **Triples**
- **Home runs**
- **Walks**
- **Hit by pitch**
- **At-bats**
- **Sacrifice flies**

Results update as you type, every field has its own unit menu, and everything is calculated in your browser.

### How it works

Enter the batting line. Hits are the sum of singles, doubles, triples and home runs.

### Inputs explained

FieldWhat to enterSinglesA numberDoublesA numberTriplesA numberHome runsA numberWalksA numberHit by pitchA numberAt-batsA numberSacrifice fliesA number

### What each result means

- **Hits** = [Singles] + [Doubles] + [Triples] + [Home runs]
- **Total bases** = [Singles] + 2×[Doubles] + 3×[Triples] + 4×[Home runs]
- **Batting average** = [Hits]÷[At-bats]
- **On-base percentage** = ([Hits] + [Walks] + [Hit by pitch])÷([At-bats] + [Walks] + [Hit by pitch] + [Sacrifice flies])
- **Slugging percentage** = [Total bases]÷[At-bats]
- **OPS** = [On-base percentage] + [Slugging percentage]

### Example values

How the main result changes when **Singles** changes and everything else stays at the example values above:

SinglesOPS500.677750.7631000.8491250.9351501.022001.192

## Worked example

Inputs — Singles: 100; Doubles: 30; Triples: 3; Home runs: 25; Walks: 60; Hit by pitch: 5; At-bats: 550; Sacrifice flies: 5.

Results — Hits = 158; Total bases = 269; Batting average = 0.287; On-base percentage = 0.36; Slugging percentage = 0.489; **OPS = 0.849**; Rating = Very good.

## Key terms

- **Total bases**: Bases gained from hits.

## FAQ

**What is a good OPS?**
.900+ is excellent, .800 very good and about .700 average.

**Is OPS a perfect stat?**
No – it weights SLG and OBP equally though OBP is worth more.

**What is OPS+?**
OPS adjusted for park and league, scaled so 100 is average.

**Why are home runs worth 4 total bases?**
The batter reaches all four bases.


## Sources

- [MLB – Glossary of statistics](https://www.mlb.com/glossary)
- [FanGraphs Sabermetrics Library](https://library.fangraphs.com/)