This parlay odds calculator is built for the common sports betting workflow: stack a few legs, see the combined odds, and check what the ticket pays before you place it. The default example is a standard 3-leg spread-style parlay at -110 / -110 / -110 on a $10 stake, but you can swap in any American odds mix you want.
Start with the most common kind of ticket, then adjust the legs from there. This calculator assumes every leg stands and wins. If one leg pushes or is voided, most books reduce that leg to decimal odds of 1.00 and reprice the remaining parlay.
Start with your stake, enter the American odds for each leg, and let the calculator combine the ticket for you. The result shows the full parlay payout, profit, decimal odds, and implied probability in one place.
A parlay ties two or more bets together into one ticket. Every leg has to win for the parlay to cash, but the reward is a larger payout than betting each leg separately. That tradeoff is why parlays are so popular: lower hit rate, bigger upside.
The math gets much easier once every leg is converted to decimal odds. From there, you simply multiply the decimal price of each leg together to get the combined parlay odds, then use that total to calculate payout and profit.
This table shows what a few common parlays look like on a $10 stake, including standard -110 builds and one mixed-price example.
| Parlay Type | Legs | Combined American | Combined Decimal | Profit | Total Payout | Implied Probability |
|---|---|---|---|---|---|---|
| 2-leg -110 parlay | -110 / -110 | +264 | 3.645 | $26.45 | $36.45 | 27.44% |
| 3-leg -110 parlay | -110 / -110 / -110 | +596 | 6.958 | $59.58 | $69.58 | 14.37% |
| 4-leg -110 parlay | -110 / -110 / -110 / -110 | +1228 | 13.283 | $122.83 | $132.83 | 7.53% |
| Mixed 3-leg parlay | -135 / +120 / -110 | +631 | 7.311 | $63.11 | $73.11 | 13.68% |
This is the part most bettors care about after the payout number: how the odds are combined, why parlays grow so fast, and what happens when a leg pushes or is voided.
American odds cannot be multiplied directly in a parlay. Each leg has to be translated into decimal odds first.
Most sportsbooks do not kill the whole parlay if one leg pushes or is voided. Instead, they usually grade that leg at decimal odds of 1.00, which effectively removes it from the ticket and reprices the rest of the parlay.
If you want to break out one leg and check the single-bet math first, use the sports betting odds calculator for payout, profit, and implied probability on one wager at a time.