Betting Odds Calculator
Total Payout
$200.00
Net Profit:
$100.00
Implied Probability:
50.00%
Total ROI:
100.00%
Understanding Betting Odds
Different regions use different ways to express the likelihood of an event. This tool converts them instantly so you can compare value across different bookmakers.
Decimal Odds
Common in Europe/Australia. Represents the total payout (Stake + Profit) for every $1 bet.
Formula: $Stake \times Odds$
American Odds
Positive (+) numbers show profit on a $100 bet. Negative (-) numbers show how much you must bet to win $100.
Fractional Odds
Common in the UK. The first number is the potential profit, the second number is the stake required. (e.g., 5/1 means $5 profit for $1 bet).
Implied Probability: This is the conversion of odds into a percentage. If the actual chance of an event is higher than the implied probability, you have found a Value Bet.