Odds Calculator
Calculate betting payouts and profit, convert American, decimal and fractional odds, and see the price-implied probability for a single selection.
Choose an odds format, enter the offered price and add your stake. Results update as you type.
American: -110 or +150. Decimal: 1.91. Fractional: 10/11. Changing format clears the price so you can enter it in the new format.
Payout includes the original stake; profit subtracts it. Results are before fees and taxes and assume a standard win-or-lose single bet. Implied probability comes from the offered price, includes any margin in that price, and is not a forecast of the outcome.
How to use the betting odds calculator
- Select American, decimal or fractional odds and enter the price you were offered.
- Enter the total amount you want to model in US dollars.
- Read the equivalent odds, potential payout, profit and implied probability. Compare the final price and costs in the platform’s order preview.
Example: +150 American, 2.5 decimal and 3/2 fractional odds describe the same price. At a $100 stake, each returns $250 if correct, including $150 profit, before fees and taxes.
Calculating several selections? Use the parlay calculator.Odds calculator questions
How do American, decimal and fractional odds compare?
They express the same offered return. Positive American odds show profit per $100 staked; negative American odds show the stake needed for $100 profit. Decimal odds include the original stake in the multiplier. Fractional odds express profit relative to stake.
What is the difference between payout and profit?
Payout is the total returned if the selection wins, including the original stake. Profit is payout minus stake. For a standard losing single bet, the stake is lost. Pushes, voids and product-specific settlement rules require their own treatment.
Is implied probability my real chance of winning?
No. It is 100 divided by the decimal odds: a threshold derived from the offered price before added costs. It can include bookmaker margin and does not measure the true probability of the event.
Does this calculator include platform fees or taxes?
No. The result uses the price and stake you enter. Fees, taxes, promotions, cash-outs and settlement adjustments can change the actual amount received. Check the platform’s final order preview and contract rules.
Explore sports markets
Browse the events available on Macro Markets, compare outcomes and review each market’s rules.
View sports markets