Parlay Calculator
Calculate combined odds, potential profit, total return and the price-implied break-even threshold—then check what a push or void changes.
Check your parlay ticket
No signup. Enter prices manually; this tool does not fetch odds or recommend bets. Amounts display in USD.
Key takeaways
- Two -110 legs produce approximately +264.46 combined odds: a $10 cash stake returns $36.45 if both win, including $26.45 profit.
- Multiplication is a standard independent-leg price calculation. It cannot establish a fair same-game parlay price.
- A push/void normally removes a leg in the standard model. A losing leg loses the ticket; all voided/pushed legs return the stake.
- A bigger potential return is not evidence of positive expected value. You still need a separate, defensible probability estimate.
How to use the parlay odds calculator
- Choose the pricing job. Use standard mode for separate, independent selections. If the legs share an event or another dependency, switch to combined quote mode and copy the ticket’s actual price.
- Enter the cash stake once. This is the amount on the entire ticket, not the amount per leg. The tool does not place a wager or connect to an account.
- Match each odds format. You may mix American and decimal leg prices. A decimal price of 1.91 is not American +191. Blank or invalid active legs produce an error rather than silently disappearing.
- Model the settlement scenario. Leave unresolved legs open. Mark a completed winner Won; it still contributes its odds. Push and Void exclude that leg, while Lost sets the total return to zero.
- Compare against the accepted receipt. A sportsbook quote may reflect correlation, a promotion, a payout limit or rounding. Your receipt and applicable rules determine settlement—not this estimate.
For single-bet payout and probability, use the American odds calculator. For pure format conversion, use the odds converter. This page owns the combined-ticket calculation rather than duplicating those tools.
The parlay payout formula
Decimal odds express the total return for one unit staked, including the original unit. For American odds A, convert positive prices with 1 + A/100 and negative prices with 1 + 100/|A|.
Total return = stake × D
Profit if the ticket wins = stake × (D − 1)
Price-implied break-even probability = 1 / D
Multiply the final probability by 100 to display a percentage. For combined American odds, use 100 × (D − 1) when D is at least 2; otherwise use −100 / (D − 1). The tool retains calculation precision internally and rounds only the display. Actual sportsbook settlement can round differently.
Break-even probability is the minimum win rate needed to break even at a price under a cash-stake win/loss model. It is not a forecast. Multiplying odds does not remove bookmaker margin or supply evidence that the selections are genuinely independent.
Worked example: two -110 legs
Each -110 price converts to 21/11, or about 1.90909. Their product is 441/121, approximately 3.644628. A $10 stake therefore has $36.44628 total return, displayed as $36.45, and $26.45 profit. The price-implied break-even threshold is approximately 27.438%. Those are arithmetic outputs, not a claim that the ticket has that true win probability.
Worked example: mixed formats and a voided leg
Consider a hypothetical $20 ticket at +150, -200 and decimal 2.00. The decimal product is 2.5 × 1.5 × 2 = 7.5: $150 total return and $130 profit if every leg wins. If the 2.00 leg is voided under the standard model, the remaining price is 3.75: $75 total return and $55 profit. The stake stays $20; it is not divided between the remaining selections.
Push, void, loss: what the scenario controls mean
A push is a tied/no-winner settlement for the relevant market; a void cancels the affected selection under the rules. In our standard model they have the same arithmetic effect: a multiplier of 1. DraftKings’ glossary describes excluding a pushed or voided parlay selection and recalculating the remaining price, while directing SGP users to separate rules. [1]
If one leg remains, the calculation becomes a single-bet payout. If no legs remain, the result is a stake refund with no meaningful combined price or break-even win threshold. If any retained leg loses, the return is zero even if another leg pushes. A Won status does not remove a price: it records a winning component of the original ticket.
This is not a full settlement engine. It does not model half-wins/half-losses on Asian lines, dead heats, cash-out offers, insurance, fixed-odds parlay cards, free/bonus bets, boosted profit, tax treatment or maximum payout caps. FanDuel’s Indiana rules illustrate why the accepted odds, bet type and sport-specific provisions matter; that jurisdiction’s rules are not a universal rulebook. [2]
Why same-game parlays need the actual combined quote
A quarterback passing over and a receiver yardage over can depend on the same game script. Multiplying their standalone odds ignores that dependence. Correlation can also exist across selections that look separate, so different events alone do not prove independence.
bet365’s Pennsylvania SGP help explains that its price accounts for whether component markets affect one another. Its void treatment also distinguishes certain player markets from other markets. That is why combined quote mode accepts the sportsbook’s displayed ticket price rather than manufacturing an SGP quote from separate legs. [3]
For a hypothetical combined +400 quote and $25 cash stake, total return is $125, profit is $100 and the price-implied threshold is 20%. Those figures describe the quote only. They cannot tell you whether 20% is a fair probability or whether a voided SGP should be repriced to that number. Read the same-game parlay correlation guide for the underlying research problem.
A calculator-backed research workflow
Use the tool as a ticket audit, not a reason to add more legs. First save the book, market, line, individual prices, combined quote and timestamp. Verify that every selection refers to the intended period, participant and settlement rule. The parlay analyzer app guide covers this review stage; a research app and a payout calculator solve different jobs.
Next, calculate the cash exposure and break-even threshold. Only then compare with a separate estimate of the ticket’s joint probability. If you cannot justify that estimate—especially for correlated legs—do not label the result +EV. The positive-EV research workflow and EV calculator explain the distinction between an offered price and an estimated edge.
Finally, log the accepted ticket, eventual settlement and any rule adjustment. To compare placing every smaller combination rather than one all-or-nothing ticket, read the round-robin combinations guide; this calculator does not build a round robin. For app selection rather than ticket arithmetic, start with the player-prop research app comparison.
Methodology: this free browser tool uses disclosed decimal-return arithmetic and was checked against independently derived payout, conversion and settlement examples. It is not a sportsbook feed, a predictive model or a hands-on test of third-party app performance. No provider pays for a placement on this page. Use only money you can afford to lose; no calculator makes betting profitable.
Frequently asked questions
How do you calculate a parlay payout?
Convert each leg to decimal odds and multiply those prices. Multiply the combined decimal odds by the stake for total return; subtract the stake for profit. This is a standard independent-leg estimate, not a same-game pricing model.
What happens if one parlay leg pushes or is voided?
In the standard model, remove that leg from the price calculation and keep the same stake on the remaining legs. If all legs push or are voided, return the stake. Same-game, sport-specific and promotional rules can differ.
Can this calculator price a same-game parlay?
Not from individual leg odds. Use sportsbook combined quote mode and enter the actual combined price to calculate payout and break-even probability. It does not estimate a fair same-game price or reprice a voided same-game ticket.
Is implied probability the chance my parlay will win?
No. It is the break-even threshold implied by the entered price. It includes pricing margin and is not an independently estimated true win probability.
What is the difference between payout and profit?
Total return, sometimes called payout, includes your original cash stake. Profit is total return minus that stake. A losing ticket returns zero and loses the full stake.
Does it support bonus bets or boosted parlays?
No. The calculator models cash stakes without boosts, insurance, fixed payout charts, dead heats or maximum payout adjustments. Check the accepted ticket and the applicable sportsbook rules.
Sources and references
Official documentation reviewed October 22, 2026. Rules can change and differ by jurisdiction, sport and product.
- DraftKings: Glossary of Betting Terms — push/void treatment, related selections and return terminology.
- FanDuel Sportsbook: Indiana House Rules — accepted prices, calculation and rule hierarchy; jurisdiction-specific example.
- bet365 Pennsylvania: Same Game Parlay — combined pricing and product-specific void exceptions.