Parlay Calculator

What Is a Parlay?

A parlay (also called an accumulator or multi-bet) combines two or more individual bets into a single wager. All selections must win for the parlay to pay out. The advantage is significantly higher potential returns than placing each bet individually. The disadvantage is that a single loss in any leg causes the entire parlay to lose. A two-team parlay at -110 odds on each pays approximately 2.64:1, much more than two separate bets. Enter your selections and odds in the calculator above to see the total parlay payout, true odds, and implied probability of winning.

How to Calculate Parlay Odds?

Convert all odds to decimal format, then multiply them together. A three-leg parlay with odds of 1.91, 2.00, and 1.80: total decimal odds = 1.91 times 2.00 times 1.80 = 6.876. A $100 bet returns $687.60 if all three legs win. For American odds, convert to decimal first: -110 = 1.909, +150 = 2.50, -200 = 1.50. Parlay: 1.909 times 2.50 times 1.50 = 7.159. The more legs you add, the higher the potential return but the lower the probability of winning. Each additional leg multiplies both the payout and the risk.

Parlay Payout Table

Standard parlay payouts for legs at -110 odds: 2 teams: +264 (2.64:1). 3 teams: +596 (5.96:1). 4 teams: +1,228 (12.28:1). 5 teams: +2,435 (24.35:1). 6 teams: +4,741 (47.41:1). 7 teams: +9,195 (91.95:1). 8 teams: +17,815 (178.15:1). 10 teams: +66,671 (666.71:1). These payouts look attractive, but the probability of hitting each is very low: a 5-leg parlay at -110 has only a 3.3% chance of winning. The high payouts compensate for the low probability, but the mathematical expected value of most parlays is negative due to the compounding vig.

Are Parlays a Good Bet?

From a pure math perspective, standard parlays have a worse expected value than straight bets because the vig compounds with each leg. A single -110 bet has 4.76% vig. A two-leg parlay at -110 each has about 9.1% effective vig. By 5 legs, the effective vig exceeds 20%. However, correlated parlays (legs whose outcomes are related) and plus-money legs can create positive expected value situations. Same-game parlays where one outcome makes another more likely (a team winning AND covering the spread) may offer value if the sportsbook misprices the correlation. Strategic use of parlays can be profitable, but blindly combining picks compounds losses.

Types of Parlays

Standard parlay: All legs must win. Teaser: A parlay where you get extra points on the spread in exchange for lower odds. A 6-point teaser moves a -7 spread to -1 and an +3 to +9. Round robin: Creates all possible parlay combinations from a set of picks. Three picks generate three 2-team parlays and one 3-team parlay. You do not need all picks to win to profit. Same-game parlay (SGP): Multiple bets from the same game combined. Popular for combining player props with game outcomes. The calculator above handles standard parlays with any combination of odds formats.

Parlay Strategy Tips

Limit parlays to 2-4 legs to keep the probability of winning reasonable. Include at least one plus-money leg to boost the payout without requiring additional correct picks. Avoid parlaying heavy favorites together because the payout barely exceeds the sum of individual bets while the risk of losing everything remains. Consider round robins instead of straight parlays to maintain some return even if one leg loses. Never parlay bets from the same sport on the same day if the outcomes could be correlated in ways the sportsbook has not fully priced. Most importantly, size parlay bets smaller than straight bets because the variance is much higher.

How to Read a Parlay Bet Slip?

A parlay bet slip shows each leg with its individual odds, the combined parlay odds, the stake amount, and the potential payout. If any leg is marked as a "push" (the result lands exactly on the spread), that leg is removed from the parlay and the remaining legs are recalculated as a smaller parlay. If one leg is voided (canceled game, player does not participate), the parlay reduces similarly. Most sportsbooks display the parlay payout both as odds and as a dollar amount. The calculator above shows the same information: enter your legs, see the combined odds, and know your exact potential return before placing the bet.

Frequently asked questions