Parlay calculator

How a parlay payout is calculated

A parlay combines several bets into one, and every leg has to win for the bet to pay. To work out the payout, convert each leg to decimal odds, multiply them together, then multiply the result by your stake. If you need to convert a price first, use the odds converter.

Worked example

Take three legs at -110, which is about 1.909 each in decimal. Multiplied together, they make 6.96, or +596 in American odds. A 100 stake returns 695.79, which is 595.79 in profit.

What happens if a leg is void or pushes

At most sportsbooks, a void or pushed leg drops out and the parlay continues at the odds of the remaining legs. Set that leg to Void above to see the new payout. Rules vary, so check your sportsbook's terms.

Why parlays are harder to beat than they look

The bookmaker's margin compounds with every leg. Say each leg is a true 50/50 priced at -110. A single bet loses 4.5% of your stake on average over time. A three-leg parlay wins 12.5% of the time, and at 6.96 it loses about 13.0% on average. Bigger payouts feel better, but they do not fix the maths.

The only way to know how your own parlays perform is to track them. Compare your results with your singles, or use the ROI calculator to see what your numbers add up to.

FAQ

How do you calculate parlay odds?

Convert each leg to decimal odds and multiply them together. Three legs at 1.91 make combined odds of 6.97, so a 10 stake returns 69.68 if all three win.

Is a parlay the same as an accumulator or a multi?

Yes. Parlay is the usual term in the US, accumulator or acca in the UK and Ireland, and multi in Australia. The payout is calculated the same way.

What happens to a parlay if one leg loses?

The whole parlay loses, even if every other leg wins. Some sportsbooks offer insurance promotions, but the standard bet needs every active leg to win.

Does this calculator work for same-game parlays?

Only as an upper guide. Legs in the same game are often correlated, so sportsbooks price same-game parlays with their own models, and the payout is usually lower than multiplying the separate odds. Use the price on your bet slip.

How many legs should a parlay have?

There is no right number, but each leg you add makes the bet less likely to win and adds more bookmaker margin. Tracking your parlays by number of legs is the most reliable way to see what is working for you.

Are parlays a good bet?

Usually they carry a higher bookmaker margin than singles, unless each leg has real value or the legs are positively correlated and priced as independent. Only stake what you can afford to lose.