On-Base Percentage (OBP) Table: On-base percentage by Hits
Reference table of on-base percentage for On-Base Percentage (OBP) across a range of hits values — exact, engine-computed figures you can read off at a glance.
On-Base Percentage (OBP) Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
On-base percentage
0.357
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the On-Base Percentage (OBP) Calculator
The On-Base Percentage (OBP) Calculator works out your on-base percentage in an instant. Enter hits, walks (bb) and hit by pitch and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the hits.
- Enter the walks (bb).
- Enter the hit by pitch.
- Enter the at bats.
- Enter the sacrifice flies.
- Read off your on-base percentage — the calculator updates automatically, with no button to press.
Formula
The On-Base Percentage (OBP) Calculator uses the formula:
On-base percentage = (Hits + Walks (BB) + Hit by pitch) ÷ (At bats + Walks (BB) + Hit by pitch + Sacrifice flies)
Worked example
For example, with hits of 50, walks (bb) of 20, hit by pitch of 5 and at bats of 180 and the other inputs, the on-base percentage is 0.357.
| Hits | 50 |
|---|---|
| Walks (BB) | 20 |
| Hit by pitch | 5 |
| At bats | 180 |
| Sacrifice flies | 5 |
| On-base percentage | 0.357 |
|---|
Results are estimates for educational use, not professional advice.
Key terms explained
- Percentage
- A number expressed as a fraction of 100, written with the % sign.
Frequently asked questions
Add hits, walks and hit-by-pitch, then divide by at-bats plus walks, hit-by-pitch and sacrifice flies. The example gives about .357.
Batting average counts only hits over at-bats; OBP also credits walks and hit-by-pitch for reaching base.
An OBP around .340 is solid, and .400 or above is excellent in most leagues.
Getting on base creates scoring chances, so OBP is a key measure of offensive value.
Enter the hits. Enter the walks (bb). Enter the hit by pitch. Enter the at bats. Enter the sacrifice flies. Read off your on-base percentage — the calculator updates automatically, with no button to press.
Related guides
How to Calculate On-Base Percentage (OBP): Formula, Steps & Examples
Learn how to calculate On-Base Percentage (OBP) — the formula explained step by step, with worked examples and a free calculator to check your answer.