Parlay calculator
A parlay is one bet on two or more selections that must all win; the odds of the legs multiply. Enter each leg's odds and result to see what the parlay pays. Switch to round robin to split your picks into smaller parlays.
19+ in most of Canada (18+ in Alberta, Manitoba and Quebec), 21+ in most US states. A calculator shows what a bet pays, not how likely it is to win. Free help: 1-800-GAMBLER (US), ConnexOntario 1-866-531-2600 (Ontario), 211 (Alberta). More help.
How a parlay pays
parlay odds = decimal odds₁ × decimal odds₂ × … and payout = stake × parlay odds. American odds convert to decimal as 1 + odds/100 for plus odds and 1 + 100/|odds| for minus odds. A push or void leg counts as 1.0.
Worked example
$10 on three legs at -110, +150 and -120: parlay odds 8.750 (+775), payout $87.50, profit $77.50.
NFL moneyline parlay
Moneyline parlays mix favourites and underdogs. $20 on four NFL moneylines at -150, -200, +130 and -120 converts to 1.667 × 1.500 × 2.300 × 1.833 = 10.54 (+954), so it pays $210.83. Point spreads and totals at -110 work the same way; the table below shows them leg by leg.
Parlay payouts at -110 per leg
| Legs | Parlay odds | $10 pays | Implied chance all win |
|---|---|---|---|
| 2 | +264 | $36.45 | 27.44% |
| 3 | +596 | $69.58 | 14.37% |
| 4 | +1228 | $132.83 | 7.53% |
| 5 | +2436 | $253.59 | 3.94% |
| 6 | +4741 | $484.13 | 2.07% |
| 8 | +17545 | $1,764.46 | 0.57% |
| 10 | +64208 | $6,430.82 | 0.16% |
Implied chance uses the odds as offered, margin included, so the real chance at a typical book is a little lower.
Round robin parlays
A round robin bets every parlay of a chosen size from your legs. 4 legs by 2s is 6 parlays; by 3s is 4; every size from 2 is 11.
Example: $10 per parlay, 4 legs at -110 by 2s, one leg loses. 3 of 6 parlays win, staked $60.00, paid $109.34, profit $49.34. Bookmakers in the UK use "round robin" for a different 10-bet ticket: see the UK round robin calculator.
Questions
What is a parlay?
A parlay is one bet on two or more selections (legs) that all have to win. The odds multiply, so $10 on legs at -110, +150 and -120 pays $87.50, but one losing leg loses the whole bet. A push or void leg drops out.
How do I calculate an NFL moneyline parlay?
The same way as any parlay: multiply the decimal odds. $20 on four NFL moneylines at -150, -200, +130 and -120 has parlay odds of +954 and pays $210.83.
How do you calculate parlay odds?
Convert each leg to decimal odds and multiply them. Three legs at -110, +150 and -120 are 1.909 × 2.5 × 1.833 = 8.75, so $10 pays $87.50.
What happens to a parlay if one leg pushes?
The push drops out and the parlay is paid on the remaining legs. In the example above, a push on the +150 leg leaves a two-leg parlay that pays $35.00.
What is a round robin bet?
A set of smaller parlays built from your picks. With 4 legs "by 2s" you get 6 two-leg parlays, so one losing leg does not sink every ticket.
How much does a $10 4-leg round robin by 2s cost?
$60: six parlays at $10 each.
Is a parlay a good bet?
Every leg carries the bookmaker's margin, and the margins multiply. A 4-leg parlay at -110 pays about +1228 but needs four wins in a row; the table shows how fast the chance falls.