How to Use the Betting Odds Calculator
Our free betting odds calculator helps you calculate the potential return and profit from a sports bet. Enter your stake and betting odds to see how much you could receive if your selection wins.
The calculator supports decimal, fractional and American odds, making it useful for comparing betting odds across different bookmakers and regions.
How Decimal Betting Odds Work
Decimal odds represent the total amount returned for every unit staked, including your original stake.
Potential return = Stake × Decimal odds
For example, a £20 bet at 2.50 decimal odds would produce a potential total return of £50.
The potential profit would be £30 because the original £20 stake is included in the £50 total return.
What Is Implied Probability?
Implied probability is the percentage probability represented by betting odds. It can help you understand what probability is reflected in a bookmaker's quoted price.
Implied probability = 1 ÷ decimal odds × 100
For example, odds of 2.00 represent an implied probability of 50%.
Decimal vs Fractional vs American Odds
Betting Odds Examples
Here are some simple examples of how decimal odds affect your potential return:
Potential return: £20 · Potential profit: £10
Potential return: £70 · Potential profit: £50
Potential return: £250 · Potential profit: £200
Betting Odds Calculator FAQ
How do I calculate betting winnings?
With decimal odds, multiply your stake by the decimal odds to calculate the potential total return. Subtract your stake from that amount to calculate potential profit.
What are decimal betting odds?
Decimal odds show the total return for every unit staked, including the original stake.
What is implied probability?
Implied probability is the probability represented by the betting odds. For decimal odds, divide 1 by the decimal odds and multiply by 100.
Can I convert between different odds formats?
Yes. Decimal, fractional and American odds represent the same underlying price in different formats. The calculator makes it easier to work with these different formats.