Odds converter
Type in any format — the other three update instantly. All four describe the same implied probability, just in different vocabularies.
-110 or +220
1.91 (total payout ratio)
10/11 (profit ratio)
52.38 (implied)
American
Positive numbers show profit on a $100 bet. Negative numbers show how much you stake to win $100. The US default.
Decimal
Total payout per $1 staked (stake × decimal = total return). The European default and the easiest to multiply.
Fractional
Profit-to-stake ratio. 10/11 = bet 11 to win 10. UK horse-racing convention; less common in MMA / NFL.