How Does a Parlay Calculator Work?
A parlay calculator estimates the total payout, profit and combined odds for a parlay bet. Instead of calculating each leg manually, you can enter your wager amount and the odds for each pick. The calculator converts the odds, multiplies the legs together and shows the potential return.
This free parlay calculator supports common American odds formats like +150 and -120, as well as decimal odds like 1.91. You can use it as an NFL parlay calculator, NBA parlay calculator, MLB parlay calculator, NHL parlay calculator or general sports betting payout calculator.
How To Calculate Parlay Odds
To calculate parlay odds, each leg is converted into decimal odds first. Then each decimal price is multiplied together to create the total parlay price. Finally, your wager amount is multiplied by the total odds to estimate the payout.
For example, a $10 parlay with three legs at +150, -110 and +200 would combine all three prices into one larger payout. The risk is that every leg must win. The reward is that the payout can be much higher than betting each pick individually.
American Odds vs Decimal Odds
American odds show how much profit you can win on a $100 bet when the odds are positive, or how much you need to risk to win $100 when the odds are negative. Decimal odds show the total return for each $1 wagered. This calculator accepts both formats.
- +150 means a $100 bet would profit $150.
- -120 means you would risk $120 to profit $100.
- 2.50 decimal odds means each $1 returns $2.50 total.
MLB Parlay Calculator
You can use this tool for football, basketball, baseball, hockey, soccer, college sports and other markets. It works for moneylines, spreads, totals, player props and other standard betting odds. The calculation is based on the odds entered, not the sport itself.
Before placing a bet, always compare the payout shown here against the payout shown by your sportsbook. Different books may use slightly different rounding rules, especially on larger parlays.
Common Parlay Betting Mistakes
- Adding too many legs just to chase a larger payout.
- Ignoring how much each leg changes the true probability of winning.
- Confusing total payout with profit.
- Not comparing odds across sportsbooks.
- Assuming a bigger potential payout means a better bet.
Parlay Calculator FAQ
How do I calculate a parlay payout?
Convert each leg to decimal odds, multiply the odds together, then multiply by your wager amount. The result is the total payout. Subtract your wager to calculate the profit.
Can I use American odds in this parlay calculator?
Yes. You can enter American odds like +150 or -120. You can also enter decimal odds like 1.91.
What is a parlay payout?
A parlay payout is the total return if every leg wins. It includes your original wager plus your profit.
Do all parlay legs have to win?
Yes. In a standard parlay, every leg must win. If one leg loses, the entire parlay loses.