Parlay Calculator
Add the American odds of each leg and your stake to see the parlay odds, the payout if every leg hits and the implied chance of it happening.
Parlay odds
+377
Decimal odds
4.77
Payout
$477.27
Profit
$377.27
Implied probability
21.0%
How are parlay odds calculated?
Each American line is turned into decimal odds first: +150 becomes 2.50 and −110 becomes 1.91. The decimals are multiplied and converted back, so a −110 and +150 parlay is about 4.77, or +377. A $100 bet pays $477.27.
Why does every leg have to win?
A parlay only pays if every leg hits; one loss and the whole ticket loses. Two −110 legs look safe on their own, but together the odds imply they both hit only about 27% of the time.
What happens if a leg pushes?
If a leg pushes (a tie on the spread or total) or is voided, most sportsbooks drop it and pay the parlay on the remaining legs at lower odds, so a three-leg parlay becomes a two-leg one. Remove that leg above to see the new payout, and check your sportsbook’s rules.
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