Parlay Calculator
Enter your stake and the odds of each leg to get the parlay odds, the payout and the profit. American odds by default, decimal and fractional too, from 2 to 15 legs. Mark a leg as a push to see what the parlay pays once the sportsbook removes it.
How parlay odds work: every leg is turned into decimal odds and the legs are multiplied. -110 is 1.909 and +150 is 2.50, so a $10 parlay on both returns 10 × 1.909 × 2.50 = $47.73: parlay odds of +377. Two legs at -110 pay +264. Full method below. Down to the last leg and want to lock in a result? Use the hedge calculator.
Legs (3/15)
Your Parlay
Every leg has to win. The implied probability is what the price says, vig included, not the true chance.
How Parlay Odds and Payouts Are Calculated
A parlay pays at a single price made by multiplying the price of every leg, so the first step is to put every leg in decimal odds, the format that includes the stake. For American odds:
- Plus odds (the underdog): decimal = 1 + odds ÷ 100. +150 is 2.50, +240 is 3.40.
- Minus odds (the favorite): decimal = 1 + 100 ÷ |odds|. -110 is 1.909, -200 is 1.50.
Multiply the decimals and you have the parlay's decimal odds; multiply by the stake and you have the payout, stake included. To turn the result back into American odds, subtract 1 and multiply by 100 (decimal 4.773 is +377). A parlay of favorites can still end up at plus money: -150 and -150 are 1.667 each, 2.778 together, which is +178.
Worked example
A $20 three-leg NFL parlay: a spread at -110, a total at -105 and a moneyline underdog at +130. In decimal: 1.909 × 1.952 × 2.30 = 8.573. Payout $171.45, profit $151.45, parlay odds +757. The implied probability, 1 ÷ 8.573, is 11.7%: the price says the three legs land together a little more than once in nine tries, and that figure still includes the sportsbook's margin on all three legs.
Prices quoted in other formats work the same way. Fractional 5/2 is 1 + 5 ÷ 2 = 3.50; evens is 2.00. The odds converter translates any single price between American, decimal and fractional odds.
Parlay Payouts at -110, and What the Vig Costs
Spreads and totals are usually priced at -110 on both sides. The table shows what a parlay of -110 legs pays against the fair price if each leg were a true coin flip with no margin. The last column is the share of the stake the price keeps on average: it compounds with every leg.
| Legs | Parlay odds | $100 pays | Fair odds | Kept by the price |
|---|---|---|---|---|
| 2 | +264 | $364.46 | +300 | 8.9% |
| 3 | +596 | $695.79 | +700 | 13.0% |
| 4 | +1228 | $1328.33 | +1500 | 17.0% |
| 5 | +2436 | $2535.91 | +3100 | 20.8% |
| 6 | +4741 | $4841.27 | +6300 | 24.4% |
| 7 | +9142 | $9242.43 | +12700 | 27.8% |
| 8 | +17545 | $17644.64 | +25500 | 31.1% |
| 10 | +64208 | $64308.16 | +102300 | 37.2% |
A single bet at -110 on a 50/50 game keeps about 4.5% of the stake. Two legs keep 8.9%, five legs 20.8% and ten legs more than 37%. Nothing in the multiplication is hidden: the margin on each leg is multiplied along with the odds. That is why a profit boost or odds boost on a parlay is worth working out before you take it, and why the margin calculator is worth a look on any two-way market you plan to combine.
Fixed-payout parlay cards, still found at some retail sportsbooks, can pay less than the multiplied price: a traditional two-team card pays 13 to 5 (+260) where the multiplied price is +264. The calculator gives the multiplied price, which is what online sportsbooks pay on a standard parlay.
Pushes, Voids, Ties and Same Game Parlays
Push. When a spread or total lands exactly on the number, that leg is a push. The common rule at US sportsbooks is to drop the leg and pay the parlay on the legs that remain: a four-leg parlay with a push is paid as a three-leg parlay, and a two-leg parlay with a push becomes a straight bet on the other leg. Mark the leg as a push in the calculator to see the new payout.
Void.A game that is postponed beyond the sportsbook's deadline, or a player prop on a player who does not take part, is normally voided and settled the same way as a push. The exact deadline is in each sportsbook's house rules.
Overtime and ties. Whether a leg counts overtime decides whether it wins, pushes or loses. NFL games can end tied after overtime, NHL moneylines usually include overtime and the shootout while 60-minute lines do not. Our guides to NFL overtime rules and NHL overtime and shootout rules explain how each settles.
Same game parlays.Legs from the same game are linked, so sportsbooks do not simply multiply them: the SGP price is usually lower than the product of the legs. Read the calculator's figure as the most a same game parlay could pay if the legs were independent.
Frequently Asked Questions
How do you calculate a parlay payout?
Turn every leg into decimal odds, multiply them, and multiply the result by your stake. A -110 leg is 1 + 100/110 = 1.909 and a +150 leg is 1 + 150/100 = 2.50. A $10 parlay on both pays 10 × 1.909 × 2.50 = $47.73 back, which is $37.73 profit. The combined price in American odds is +377.
What does a 2-team parlay at -110 pay?
+264. Each -110 leg is 1.909 in decimal, and 1.909 × 1.909 = 3.645, so a $100 two-team parlay returns $364.46 ($264.46 profit). Three legs at -110 pay +596, four pay +1228 and five pay +2436.
What happens to a parlay if one leg pushes?
At most US sportsbooks the pushed leg is removed and the parlay is paid on the legs that remain, at their combined price. A three-leg parlay with one push becomes a two-leg parlay; a two-leg parlay with one push becomes a straight bet on the other leg. If every leg pushes, the stake is returned. A void leg, such as a game that is not played, is normally treated the same way. House rules can differ, so check your sportsbook's.
Are parlays a good bet?
They pay more, but they keep more for the sportsbook. The margin compounds with every leg: two legs at -110 on true 50/50 games give up about 8.9% of the stake on average, against 4.5% for a single bet at -110, and five legs give up about 20.8%. A parlay is a way to bet more on fewer outcomes, not a way to improve your expected return.
Does the calculator work for same game parlays?
Only as a ceiling. The calculator multiplies the legs as if they were independent. In a same game parlay the legs are linked (a quarterback's passing yards and his team's points tend to move together), so sportsbooks price the combination below the multiplied price. If the SGP price you are offered is lower than the calculator's figure, that difference is the correlation adjustment.
What is the difference between a parlay and an accumulator?
None in the maths: both multiply the odds of every leg and need every leg to win. Parlay is the American name and accumulator (or acca) the British one. UK bookmakers usually quote fractional or decimal odds and US sportsbooks American odds, which is why this calculator defaults to American prices and the accumulator calculator to decimal.
Related calculators and guides
- Round robin calculator: a set of smaller parlays by 2s, 3s and up from the same picks, so one losing leg does not sink everything.
- Hedge calculator: how much to bet on the other side of the last open leg to guarantee a profit.
- Accumulator calculator: the same maths with decimal odds and acca boosts, as UK bookmakers quote it.
- No-vig calculator: strip the vig from each leg's market to see the fair price before you combine legs.
- Break-even odds calculator: the win rate a price needs before it stops losing money.
- NFL tiebreakers and NBA Cup tiebreakers: the standings rules behind the games most parlays are built on.
Parlays are high-variance bets: long losing runs are normal even with good picks. Bet only where sports betting is legal for you and you meet the minimum age (18+, and 21+ in most US states). Set a budget and stick to it. Verdecto does not take bets. If gambling stops being fun, see our responsible gambling resources; in the US you can call 1-800-GAMBLER.