Parlay Calculator — Free Parlay Odds & Payout Calculator
A parlay combines multiple bets into one ticket that only pays if every leg wins — in exchange for much longer odds than betting each leg separately. Add up to 12 legs, mark any that pushed, and see the true combined odds and payout instantly.
How parlay odds are calculated
parlay decimal = decimal₁ × decimal₂ × … × decimalₙ payout = stake × parlay decimal profit = payout − stake
Worked examples
- Three -110 legs: 1.9091³ = 6.9579 → about +596. A $100 stake pays $695.79 ($595.79 profit).
- Legs at -300, -200, and -150: 1.3333 × 1.5 × 1.6667 = 3.333 → +233.
What a push does
A pushed leg is removed and the ticket is graded on the remaining legs at lower odds. If every leg pushes, the parlay is void and the stake is refunded.
The catch: compounding vig
Each leg carries the sportsbook’s margin, and a parlay multiplies it. Three true 50/50 legs should pay +700, but three -110 legs pay about +596 — a 13% hold versus 4.5% on a single bet. Read how parlays are priced, and use the EV calculator before you build one.
FAQ
How are parlay odds calculated?
Every leg's decimal odds are multiplied together. Three legs at -110 each combine to roughly +596 — much steeper than any single leg, because you're compounding the payout across every leg you add.
What happens if one leg of my parlay pushes?
A pushed leg (a tie or a line that lands exactly on the number) is removed from the parlay and the rest of the bet is graded normally at reduced odds — it does not void the whole ticket. If every leg pushes, the entire parlay is void and your stake is refunded.
How many legs can a parlay have?
This calculator supports up to 12 legs. Most sportsbooks cap parlays somewhere between 10 and 25 legs, but the odds get so long past 6-8 legs that the practical ceiling is usually your own risk tolerance.
What’s the chance of winning a 3-leg parlay at -110?
Each -110 leg needs 52.38% to break even, so all three need 0.5238³ = 14.37%. If your true win rate per leg is 50%, you’ll cash only 12.5% of the time.
Do parlays have a worse payout than single bets?
Usually yes in expectation: the margin on every leg compounds, so the effective hold on a parlay is much higher than on a straight bet.