Parlay Payout Calculator
Calculate potential parlay payout from multiple betting selections (legs) using decimal odds.
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How to use this calculator
A parlay multiplies the odds of each selection together. All legs must win for the parlay to pay. The implied probability of the whole parlay is the product of each leg's implied probability.
- 1
Enter your total stake.
- 2
Enter the decimal odds for each leg of your parlay.
- 3
Leave legs at 0 to skip them (only legs with odds > 1 are included).
- 4
Read the combined parlay odds, implied probability, and potential payout.
Frequently asked questions
How does this tool calculate the payout?
Combined odds are the product of the decimal odds of every active leg, profit is stake × (combined − 1), and total return is stake × combined. Three legs of 2.0, 1.8 and 2.5 multiply to 9.00, so a $10 stake shows $80.00 profit and a $90.00 return.
How is the implied probability calculated?
Each leg’s implied probability is 1 ÷ its odds, and the tool multiplies those together, which equals 1 ÷ combined odds. For the default legs it is 11.11%. Multiplying assumes the legs are independent, which may not hold for related selections.
Which legs are counted?
Up to five legs, each with decimal odds above 1. A leg left at 0, or at 1.00 or below, is skipped. Skipped legs are not renumbered in the breakdown, so with legs 1, 2 and 4 entered the breakdown reads Leg 1, Leg 2 and Leg 4.
Can I enter American or fractional odds?
Only decimal. To use American or fractional prices, convert them first: +150 is 2.50, −110 is about 1.91, and 3/2 is 2.50. A betting odds converter will do this.
What if one leg loses?
In a standard parlay the whole bet loses. The tool shows the payout for every leg winning and does not show losing outcomes. Operators treat voided or tied legs in different ways, and the tool does not model any of them.
Why do payouts grow so fast as I add legs?
Because the odds multiply while the chance of all legs winning shrinks by the same factor. Five legs of 1.50 show combined odds of 7.59 and an implied probability of 13.17%, compared with 66.7% for one leg.
Parlay payout calculator with decimal odds
Multiplying the legs
A parlay, also called an accumulator, joins several selections into one bet that pays only if every selection wins. The payout comes from multiplying the decimal odds of each leg. Because the implied probability of each leg is 1 ÷ odds, the implied probability of the whole parlay is the product of those fractions. Together these give the two linked numbers on screen: a large combined price and a small combined probability.
| Output | Formula |
|---|---|
| Combined odds | Leg 1 × Leg 2 × … (legs above 1.00) |
| Implied probability | Product of (1 ÷ each leg) × 100 |
| Profit | Stake × (combined − 1) |
| Total return | Stake × combined |
Worked example: three legs
Legs of 2.0, 1.8 and 2.5 combine to 9.00. A $10 stake shows $80.00 of profit and a $90.00 return. The legs imply 50.0%, 55.6% and 40.0% individually, and 11.11% together. A second example skips a leg: with $25 on 1.91, 1.91 and 2.2, and the third box left at zero, three legs are active, the combined odds are 8.03, and the profit is $175.65 on a $200.65 return. The breakdown lists the active legs as Leg 1, Leg 2 and Leg 4.
| Stake | Legs entered | Combined odds | Implied probability | Profit | Return |
|---|---|---|---|---|---|
| $10 | 2.0, 1.8, 2.5 | 9.00 | 11.11% | $80.00 | $90.00 |
| $25 | 1.91, 1.91, 2.2 | 8.03 | 12.46% | $175.65 | $200.65 |
Worked example: five short legs
Five legs at 1.50 each look safe one by one, since each implies 66.7%. Multiplied, they combine to 7.59 and a joint implied probability of 13.17%. A $10 stake would show $65.94 of profit on a $75.94 return. The example shows how a run of short prices converts into a long combined price, and how fast the joint probability falls compared with any single leg.
| Legs | Combined odds | Implied probability | Profit | Return |
|---|---|---|---|---|
| 5 × 1.50 | 7.59 | 13.17% | $65.94 | $75.94 |
Independence and settlement
The multiplication treats each leg as an independent event. Where selections are related, such as two outcomes of the same match, the real joint chance differs from the product, and operators may price such combinations differently. The calculator cannot tell, so it multiplies whatever you enter. It also assumes every leg is settled as a plain win or loss.
Limits and risk
There is no support for system bets, bonuses, boosts, rounding rules used by operators or cash-out. Gambling involves a risk of losing the stake, and legality depends on your location.
Learn more from an authoritative source:
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →