Odds Converter
Instantly convert between decimal, fractional and American odds. Implied probability calculator.
Enter an odd
Results
Decimal
—
Fractional
—
American
—
Implied probability
—
Payout for $100 staked
—
How to use the odds converter
Enter odds in any format and instantly get the conversion in all three main formats, plus the implied probability and potential payout.
The three odds formats
- Decimal (Europe): The odds represent the total return for $1 staked. Odds of 2.50 mean you get back $2.50 for $1 staked ($1.50 profit).
- Fractional (UK): Expressed as a fraction (3/2). The numerator is the profit, the denominator is the stake. 3/2 = $1.50 profit for $2 staked.
- American (USA): Positive odds (+150) indicate profit for $100 staked. Negative odds (-200) indicate how much to stake to win $100.
Other tools
Arbitrage Calculator (Surebet)
Detect arbitrage opportunities between bookmakers. Calculate stakes for guaranteed profit.
Kelly Criterion Calculator
Calculate optimal bet sizing with the Kelly Criterion. Maximize your bankroll growth long-term.
Value Bet Calculator
Calculate if a bet has positive expected value (EV+). Enter the odds and your estimated probability.