⚾ On-Base Percentage (OBP) Calculator

Calculate a baseball player's OBP using hits, walks, hit by pitch, at-bats, and sacrifice flies.

On-Base Percentage (OBP) Calculator

📊 Example:

Hits: 90
Walks: 35
HBP: 5
At Bats: 300
SF: 10
Result: OBP = 0.363

🎯 What is an On-Base Percentage Calculator?

On-Base Percentage (OBP) is a key baseball stat that measures how often a player reaches base. It includes not just hits, but also walks (BB), hit-by-pitches (HBP), and sacrifice flies (SF) — making it more complete than batting average.

🧮 OBP Formula:

OBP = (Hits + Walks + HBP) ÷ (At Bats + Walks + HBP + Sacrifice Flies)

🔍 Why is OBP Important?

Unlike batting average, OBP counts every time a player gets on base — even by walking or getting hit by a pitch. It gives coaches and fans a better understanding of a player’s value to the team.

✅ How to Use the OBP Calculator

  1. Enter:

    • Hits

    • Walks (Base on Balls)

    • Hit By Pitch (HBP)

    • At-Bats

    • Sacrifice Flies (SF)

  2. Click “Calculate”

  3. See your OBP result instantly.

🧾 Example:

A player has:
90 Hits, 35 Walks, 5 HBP, 300 At-Bats, and 10 Sacrifice Flies

👉 OBP = (90 + 35 + 5) ÷ (300 + 35 + 5 + 10) = 0.363

Scroll to Top