❓ Frequently Asked Questions
How do you calculate a parlay payout?
Convert each leg's American odds to decimal odds, multiply them together for the combined odds, then multiply by your stake. Example: three legs at -110 give combined odds of 6.96, so a $100 stake pays $695.79.
What does a 3-leg parlay at -110 pay on $100?
A $100 stake on three -110 legs pays $695.79 in total, a profit of $595.79. The combined odds are +596 in American format.
Do all legs of a parlay need to win?
Yes. Every leg must win for the parlay to pay out — one losing leg loses the whole bet, which is why parlay payouts are much bigger than single bets.
What does a 2-leg parlay at -110 pay on $100?
Two legs at -110 combine to +264 (3.64 decimal), so a $100 stake pays $364.46 in total, a profit of $264.46. The true chance of both legs winning is about 27.4%.
How do same-game parlays change the payout?
Legs from the same game are correlated, so a sportsbook shortens the same-game parlay price below the multiplied odds. The calculator shows the fair price for independent legs; your sportsbook's same-game quote will usually be lower.
How do you convert American odds to decimal odds?
For negative odds, divide 100 by the odds number and add 1: -110 becomes 100/110 + 1 = 1.91. For positive odds, divide the odds by 100 and add 1: +150 becomes 1.50 + 1 = 2.50. Multiply the decimal odds of all legs, then multiply by your stake.
📊 How Parlay Odds Are Calculated
A parlay multiplies the decimal odds of every leg. Convert each leg from American odds to decimal odds (for example, -110 becomes 1.91 and +150 becomes 2.50), multiply them all together, then multiply by your stake.
Worked example: three legs at -110 give 1.91 × 1.91 × 1.91 = 6.96 combined odds, so a $100 stake pays $695.79 in total, a profit of $595.79.
| Legs at -110 | Combined odds | $100 pays | True win chance |
|---|
| 2 | +264 | $364.46 | 27.4% |
| 3 | +596 | $695.79 | 14.4% |
| 4 | +1228 | $1,328.33 | 7.5% |
| 5 | +2436 | $2,535.91 | 3.9% |
Payouts include the stake. Same-game parlays are different: legs from the same game are correlated, so a sportsbook shortens the same-game price below the multiplied odds. The calculator shows the fair price for independent legs; a sportsbook's same-game quote will usually be lower.