Parlay Calculator
Enter the odds for each leg and your stake, and the calculator multiplies the legs into combined odds, then shows the total payout, profit and implied probability. It handles American and decimal odds and lets you remove a pushed leg.
Last updated November 4, 2026
Result
Total payout $71.59
- Profit
- $61.59
- Combined decimal odds
- 7.1591
- Combined American odds
- +615.91
- Implied probability
- 13.97%
- Legs counted
- 3 of 3
Arithmetic on the odds you enter, not a prediction or betting advice. Gambling involves risk; only stake what you can afford to lose. In the US, help is available from the National Problem Gambling Helpline at 1-800-GAMBLER.
Show the work
Formula: Decimal odds per leg (American +A: 1 + A/100; -A: 1 + 100/A; a push counts as 1). Combined decimal = product of legs. Payout = stake × combined decimal. Profit = payout − stake. Implied probability = 1 ÷ combined decimal.
- Leg 1: +150 = decimal 2.5
- Leg 2: -200 = decimal 1.5
- Leg 3: -110 = decimal 1.9091
- Combined decimal = 2.5 × 1.5 × 1.9091 = 7.1591
- Payout = $10.00 × 7.1591 = $71.59
- Profit = $71.59 − $10.00 = $61.59
- Combined American odds = +615.91
- Implied probability = 1 ÷ 7.1591 = 13.97%
Result: $71.59 total payout, $61.59 profit
How a parlay payout is calculated
combined decimal = d1 × d2 × … × dn
payout = stake × combined decimal
profit = payout − stake
implied probability = 1 ÷ combined decimal
Every leg must win for a parlay to pay, and winnings roll from leg to leg. In decimal odds that is multiplication: 2.00 then 1.50 gives 3.00. Decimal odds include your stake, so payout is the stake times the combined figure.
American odds convert to decimal first. +150 is 1 + 150 ÷ 100 = 2.50, and -200 is 1 + 100 ÷ 200 = 1.50. American odds must be +100 or higher, or -100 or lower, and decimal odds must be above 1.
The implied probability is 1 divided by the combined decimal odds, as a percent. It is what the odds imply before any bookmaker margin, not a forecast of the legs winning.
See how we calculate for the formulas, sources and review schedule behind every calculator.
What happens when a leg pushes
A push means a leg ties or is voided. Most sportsbooks remove it and pay on the remaining legs, the same as decimal odds of 1.0, and tick Push does this here. House rules differ, so check your sportsbook terms.
A note on responsible gambling
This is a maths tool. It does not predict outcomes or recommend bets. Each extra leg multiplies the payout but also the ways to lose. Gambling is for adults only and risks financial loss, so stake only what you can afford to lose. In the US, the National Problem Gambling Helpline is 1-800-GAMBLER; elsewhere, find your national service.
How to use the Parlay Calculator
- Choose American or decimal odds, then enter your stake.
- Enter the odds for each leg, using Add leg for up to 12 legs and Remove for any beyond the first 2.
- Tick Push on any leg that tied or was voided so it counts as 1.0.
- Read the payout, profit, combined odds and implied probability, or open Show the work.
Worked example
A $10 stake on three legs at +150, -200 and -110. The decimal odds are 2.50, 1.50 and 1.9091, so the combined decimal odds are 7.1591. The payout is $71.59 and the profit is $61.59. The combined American odds are +615.91 and the implied probability is 13.97%.
| Leg | American odds | Decimal odds |
|---|---|---|
| 1 | +150 | 2.5 |
| 2 | -200 | 1.5 |
| 3 | -110 | 1.9091 |
| Combined | +615.91 | 7.1591 |
| Payout / profit | $71.59 | $61.59 |
Frequently asked questions
How do you calculate parlay odds?
Convert each leg to decimal odds and multiply them together. Multiplying the combined decimal odds by your stake gives the total payout, including the stake.
Does the payout include my original stake?
Yes. Total payout is the stake times the combined decimal odds, so it includes the stake. Profit is the payout minus the stake.
What does the implied probability mean?
It is one divided by the combined decimal odds, as a percent. It shows what the odds imply before any bookmaker margin, not the real chance of winning.
How does a push change a parlay?
The pushed leg is removed and treated as 1.0, so the parlay pays on the remaining legs. Your sportsbook rules may differ, so check its terms.