Enter each leg
Type the odds your book shows for every leg. Add legs up to twelve, or remove the ones you cut.
Parlay calculator
Enter the odds for each leg and your stake. The calculator multiplies the legs into one price and shows the payout, the profit and the win rate the parlay needs.
Your parlay
Total payout$69.58Profit $59.58 on a $10.00 stake
Parlay odds+596
Decimal odds6.958
Implied probability14.37%
Break-even per leg52.38%
3 legs at +596. All three must win. Each leg needs to hit 52.38% of the time, on average, for the parlay to break even.
The payout includes your stake. Most books drop a pushed leg and pay on the legs left.
How it works, the math and FAQ
How to use the calculator
Legs, stake, payout
Set the stake
The payout updates as you type. The total includes your stake, the same way a bet slip shows the payout.
Check the break-even
Break-even per leg is the average win rate each leg needs. Compare the number to your own read on each pick.
Why parlays pay big
The payout grows, and so does the book's edge
A parlay multiplies the price of every leg, so the payout climbs fast. The book's margin climbs with the payout. Each -110 leg carries a 4.55% edge on a true 50/50 side, and a parlay stacks those edges on top of each other. Four legs at -110 give the book 16.98% of every dollar.
The same math works for you when your legs hold a real edge. Win 55% of your -110 picks and a single bet returns 5% per dollar, while a 4-leg parlay of those picks returns 21.6%. A parlay amplifies the edge you bring, good or bad, so the price of each leg matters more than the count of legs.
The formula
How parlay odds work
decimal = leg 1 × leg 2 × ... × leg n payout = stake × decimal profit = payout - stake implied = 1 / decimal break-even per leg = implied1/n
Example: three legs at -110, $10 stake
- Each leg: -110 = 1.909 in decimal
- Parlay: 1.909 × 1.909 × 1.909 = 6.958, or +596
- Payout: $10 × 6.958 = $69.58, a profit of $59.58
- Implied: 1 / 6.958 = 14.37%
Reference
Parlay payout chart at -110 per leg
What a $10 parlay pays when every leg is priced at -110, against the fair payout on true 50/50 legs.
| Legs | Parlay odds | Decimal | $10 pays | Fair pays | Book's edge |
|---|---|---|---|---|---|
| 2 | +264 | 3.645 | $36.45 | $40.00 | 8.88% |
| 3 | +596 | 6.958 | $69.58 | $80.00 | 13.03% |
| 4 | +1228 | 13.283 | $132.83 | $160.00 | 16.98% |
| 5 | +2436 | 25.359 | $253.59 | $320.00 | 20.75% |
| 6 | +4741 | 48.413 | $484.13 | $640.00 | 24.36% |
| 7 | +9142 | 92.424 | $924.24 | $1,280.00 | 27.79% |
| 8 | +17545 | 176.446 | $1,764.46 | $2,560.00 | 31.08% |
| 9 | +33585 | 336.852 | $3,368.52 | $5,120.00 | 34.21% |
| 10 | +64208 | 643.082 | $6,430.82 | $10,240.00 | 37.20% |
FAQ
Common questions
How are parlay odds calculated?
Convert each leg to decimal odds and multiply them. Three legs at -110 give 1.909 x 1.909 x 1.909 = 6.958, or +596 in American odds. A $10 parlay pays $69.58 in total.
What happens if a leg in my parlay pushes?
Most books drop the pushed leg and pay the parlay at the odds of the legs left. A 3-leg parlay with one push pays as a 2-leg parlay. Check your book's house rules, since a few books grade ties differently.
Why do parlays favor the sportsbook?
The book's margin compounds with every leg. On a true 50/50 side at -110, a single bet gives the book a 4.55% edge. A 4-leg parlay at -110 per leg gives the book 16.98%.
What win rate does each leg need?
The same rate a single bet at the same price needs. Legs at -110 need 52.38% each. The parlay multiplies whatever edge you hold. At 55% per leg, a 4-leg parlay returns +21.6% per dollar. At 50% per leg, the same parlay loses 17%.
Does this work for same game parlays?
Only as a rough guide. Legs from one game move together, so books price a same game parlay below the product of its legs. The payout here runs higher than the real same game price.
The Kennel
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