Free tool
Parlay Calculator
Combine multiple selections into an accumulator and see your total odds, return and profit.
A parlay (or accumulator) combines several selections into one bet. Every leg must win for the bet to pay out, and the combined odds are the product of each leg's decimal odds. Add your selections and a stake to see the total return and profit.
Selections
Result
- Combined odds
- 3.00
- Total return
- 30.00
- Profit
- 20.00
How it works
A parlay, also called an accumulator or multiple, combines several individual selections, known as legs, into one bet. The calculator multiplies the decimal odds of each leg together to give the combined odds, then applies your stake to show the total return and the profit. The appeal is that odds compound quickly, so a modest stake can produce a large potential return from a handful of selections. The trade-off is that every single leg must win for the bet to pay out; one losing leg means the entire parlay loses. Because the bookmaker's margin is effectively applied to each leg and then multiplied, parlays carry a higher built-in house edge than the equivalent single bets. They can be entertaining and occasionally lucrative, but they are mathematically harder to beat over time than betting selections individually.
Worked example
Suppose you combine three selections at the following decimal odds: Leg 1: 2.00 Leg 2: 1.50 Leg 3: 3.00 Combined odds = 2.00 x 1.50 x 3.00 = 9.00 With a £10 stake: Total return = £10 x 9.00 = £90 Profit = £90 - £10 = £80 All three legs must win to collect the £90. If any one leg loses, the whole bet is lost and the £10 stake is gone.
Each additional leg lowers your overall chance of winning and compounds the bookmaker's margin, so long-term value tends to fall as you add selections. Treat parlays as higher-risk, higher-variance bets and stake only what you can comfortably afford to lose.
Frequently asked questions
How are parlay odds calculated?
Convert each selection to decimal odds and multiply them together to get the combined price. Multiplying that figure by your stake gives the total return, from which you subtract the stake to find the profit.
What happens if one leg of my parlay loses?
The entire parlay loses and your full stake is forfeited, regardless of how many other legs won. Every leg must win for the bet to pay out.
What if a leg is void or postponed?
Most bookmakers treat a void leg as odds of 1.00, effectively removing it and recalculating the parlay on the remaining selections. The exact rule can vary, so always check the operator's terms.
Are parlays a good way to bet?
They offer large potential returns from small stakes but combine the bookmaker's margin across every leg, making them harder to beat over the long run than single bets. They are best viewed as high-variance entertainment rather than a reliable strategy.
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