Last Updated on November 11, 2025 5:53 pm by Michael Cash
This parlay calculator computes payouts as you enter data. Make a mistake or want to try an all new parlay? Click “Start Over” or simply change values and add/remove legs. Use the minus sign (-) for Favorites. For more information about parlays check out our parlay, round robin and teaser betting guide.
Parlay Calculator
How to Use The Parlay Calculator
- Enter your wager amount in dollars (defaults to $100).
- Input American odds for each leg (e.g.,
-110or+150). Leave unused legs at0. - Your parlay odds, total payout, and profit update automatically.
How we calculate: Each leg is converted to decimal odds, multiplied together, then converted back to American odds. Positive odds (e.g., +180) show how much you’d win on $100; negative odds (e.g., -110) show how much you stake to win $100.
Compare this true-math payout with your sportsbook’s number to see where they price-in margin.
Level up your betting knowledge with our Betting Guides library.
Learn the Basics of Sports Betting
If you’re new to sports betting, these beginner-friendly guides will help you understand parlays, odds, prop bets, and the fundamentals of betting lines:
Understand how different multi-bet wagers work and how payouts are calculated. How to Read Betting Odds
Learn the difference between American, fractional, and decimal odds in plain language. Prop Betting Explained
See how prop bets differ from standard wagers and why they’re so popular with new bettors. Moneyline vs. Spread vs. Totals
Break down the three main bet types and how each affects your payout potential. Vig & Juice Explained
Understand how sportsbooks make money and how vig affects your returns. More Betting Guides
Browse all of TheSpread’s beginner resources to build a strong betting foundation.
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Responsible Gaming: TheSpread promotes responsible betting. If you or someone you know needs help, visit the National Council on Problem Gambling for confidential support.