# Odds Formats Explained: American, Decimal, and Fractional

*By Editorial Desk*
*Reviewed 2026-10-22*

Convert between American, decimal, and fractional odds and understand what each format implies for potential payout.

Sportsbooks show the same price in different formats depending on region. Understanding all three helps you compare lines faster.

## Decimal odds

Common in Europe and many online books. A price of **2.50** means a $10 stake returns $25 total ($15 profit + stake).

## American odds

- **+150**: a $100 stake wins $150 profit
- **-120**: you risk $120 to win $100 profit

Negative favorites can look intimidating until you convert them to decimal or implied probability.

## Fractional odds

Popular in the UK. **5/2** means $5 profit on a $2 stake. Convert to decimal by dividing and adding 1.

Try the [Odds Converter](/tools/odds-converter) to switch formats instantly.

## Tip for sharper reading

Compare **implied probability**, not just the pretty number. That keeps your attention on value instead of presentation.