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Enter the odds for at least two legs to see your parlay payout.
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Type in any field and the others update. Implied probability is the break-even chance the price stands for, including the sportsbook margin.
Enter the odds for each leg, set your stake and the calculator shows your total payout, profit, the combined parlay odds and the implied probability. It works with American, decimal and fractional odds, handles pushes and losing legs, and has a built-in odds converter. Use Copy link to share a calculation.
How to use the parlay calculator
- Pick the odds format. American odds (-110, +150) are standard at US sportsbooks; decimal (1.91) and fractional (10/11) are common in Canada, Europe and the UK.
- Enter your stake in dollars.
- Add the odds for every leg. Two to fifteen legs are supported. The pick name is optional and only helps you keep track.
- Set the result once games are over: Win, Push or Loss. A push removes the leg; a loss sinks the whole parlay.
- Optional: add your own win chance per leg. With a percentage on every leg the calculator also shows your expected value.
How parlay odds are calculated
A parlay pays the product of its legs. Convert each leg to decimal odds, multiply them, then multiply by your stake. That figure is your total payout, including the stake.
- Positive American odds: decimal = odds / 100 + 1. So +150 becomes 2.50.
- Negative American odds: decimal = 100 / odds + 1. So -110 becomes 1.909.
- Parlay decimal odds = leg 1 × leg 2 × leg 3 …
- Payout = stake × parlay decimal odds. Profit = payout − stake.
- Implied probability = 1 / parlay decimal odds.
Example: a $10 three-leg parlay at -110, -110 and +150. That is 1.909 × 1.909 × 2.50 = 9.11. Your payout is $91.12, of which $81.12 is profit, and the parlay odds are +811. The implied probability is about 11%, so the price says this bet lands roughly 1 in 9 times.
What a parlay pays at -110 per leg
Most spreads and totals are priced at -110. This table shows what a $10 parlay pays when every leg is -110, and how often it would hit if each leg were a true 50/50.
| Legs | Parlay odds | Payout on $10 | Hits (50/50 legs) | House edge |
|---|---|---|---|---|
| 2 | +264 | $36.45 | 1 in 4 | 8.9% |
| 3 | +596 | $69.58 | 1 in 8 | 13.0% |
| 4 | +1228 | $132.83 | 1 in 16 | 17.0% |
| 5 | +2436 | $253.59 | 1 in 32 | 20.8% |
| 6 | +4741 | $484.13 | 1 in 64 | 24.4% |
The edge grows with every leg because the sportsbook margin is multiplied too. A single -110 bet carries a margin of about 4.5%; a six-leg parlay of the same bets carries more than 24%. That is why parlays are profitable for sportsbooks and why big payouts come with low odds of winning.
American, decimal and fractional odds
All three formats describe the same price. American odds show how much you win on $100 (+150) or how much you must risk to win $100 (-110). Decimal odds show the total return per $1, stake included. Fractional odds show profit relative to stake: 3/2 means $3 profit for every $2. Switch the format at the top of the calculator and your legs convert automatically, or use the Odds converter tab to translate a single price and see its implied probability.
| American | Decimal | Fractional | Implied probability |
|---|---|---|---|
| -200 | 1.50 | 1/2 | 66.7% |
| -110 | 1.91 | 10/11 | 52.4% |
| +100 | 2.00 | 1/1 | 50.0% |
| +150 | 2.50 | 3/2 | 40.0% |
| +300 | 4.00 | 3/1 | 25.0% |
Pushes, ties and void legs
When a leg pushes (the result lands exactly on the spread or total) or is voided, most sportsbooks remove it and pay the parlay at the odds of the remaining legs. A three-leg parlay with one push is paid as a two-leg parlay; if only one leg is left, it is paid as a straight bet. House rules can differ, so check the sportsbook terms. In the calculator, set the leg to Push to see the new payout.
Same game parlays, round robins and teasers
Same game parlays combine bets from one game. Those legs are correlated: if a quarterback throws for 300 yards, his team is more likely to cover. Sportsbooks adjust the price for that, so a same game parlay usually pays less than simply multiplying the legs. Treat the calculator result as the maximum; the sportsbook quote will often be lower.
A round robin splits your picks into several smaller parlays, for example three picks by twos gives three two-leg parlays. You can calculate each one separately. A teaser moves the point spread in your favor, such as six points in NFL betting, in exchange for a lower payout than a normal parlay.
Is a parlay worth it?
A parlay turns a small stake into a big potential payout, which is the appeal. The trade-off is that every leg has to win and the margin stacks up. Look at the implied probability in the calculator next to the payout: a +1228 four-leg parlay is priced to win less than 8% of the time. Parlays work best as small, fun bets, not as a plan to make money. Set a budget before you bet and stick to it.
Parlays vs casino games
Many sportsbook apps share one account and balance with a casino, so it helps to compare. Blackjack played with basic strategy has a house edge of around 0.5%. Many online slots return about 96%, a house edge near 4%. A two-leg parlay at -110 carries about 9%, and the edge keeps climbing with every leg. Slots with progressive jackpots offer the same small-stake, big-multiplier thrill as a long parlay. Compare apps in our guides to blackjack apps and slot machine apps.
Where to place a parlay
Ready to place your bet? These sportsbooks accept parlays and also have a casino on the same account. Bovada serves US players, Ozoon is aimed at Canada and FanoBet at players elsewhere. For legal options per state and free betting apps, see our guide to sports betting apps.
Sportsbook apps for parlays
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Want to track your parlays over time? The Pikkit app syncs bets from many sportsbooks, and the Action Network app compares odds so you can find the best price for each leg.
Parlay calculator FAQ
How are parlays calculated?
Convert every leg to decimal odds, multiply them together and multiply the result by your stake. That gives the total payout. Subtract the stake to get your profit.
What does a 3-leg parlay pay?
At -110 per leg, a 3-leg parlay pays about +596: a $10 bet returns $69.58. With different odds the payout changes, so enter your own prices in the calculator.
What happens if one leg of a parlay pushes?
At most sportsbooks the pushed leg is removed and the parlay is paid at the odds of the remaining legs. A 3-leg parlay with one push becomes a 2-leg parlay. Check the house rules of your sportsbook.
What does a $10 parlay pay?
It depends on the number of legs and the odds. At -110 per leg, $10 pays $36.45 on two legs, $69.58 on three, $132.83 on four and $253.59 on five.
Can I use decimal or fractional odds?
Yes. Choose American, decimal or fractional at the top of the calculator. Legs you already entered convert automatically.
Is there a parlay calculator app?
You do not need one. This calculator works in any phone browser, so you can add it to your home screen and use it like an app. Many sportsbook apps also show the payout in the bet slip.
Why does a same game parlay pay less than the calculator shows?
Legs from the same game are correlated, so sportsbooks lower the price. The calculator multiplies the legs as if they were independent, which gives the maximum payout.