Parlay Calculator

How to Calculate Parlay Payouts

A parlay calculator multiplies the decimal odds of all legs to find the combined payout. With 74K monthly searches and CPC of $9.59, it is the go-to tool for sports bettors. Converting American odds to decimal: positive odds equal (odds divided by 100) plus 1; negative odds equal (100 divided by the absolute value of odds) plus 1.

Example: 3-leg parlay at minus 110, plus 150, minus 120. Decimals: 1.909, 2.500, 1.833. Combined payout = 1.909 times 2.500 times 1.833 = 8.748x. A 100 dollar bet returns 874.80 dollars total (profit: 774.80 dollars).

Parlay Payout Chart at Minus 110 Per Leg

• 2-leg parlay: True math payout 3.64x | Books typically pay approximately 2.6x | 100 dollars returns about 260 dollars
• 3-leg parlay: True 7.54x | Books pay approximately 6x | 100 dollars returns about 600 dollars
• 4-leg parlay: True 15.6x | Books pay approximately 11x | 100 dollars returns about 1,100 dollars
• 5-leg parlay: True 32.4x | Books pay approximately 22x | 100 dollars returns about 2,200 dollars
• 6-leg parlay: True 67x | Books pay approximately 45x
• 10-leg parlay: True 1,213x | Books pay approximately 645x

The gap between true odds and book payouts is the compounded vig — approximately 4.6 percent per minus 110 leg, growing exponentially with each additional leg.

Converting Odds Formats

• American +200: Win 200 dollar profit on 100 dollar bet. Decimal = 3.00. Fractional = 2/1
• American -150: Risk 150 dollars to win 100 dollars. Decimal = 1.667. Fractional = 2/3
• American +110: Win 110 dollars on 100 dollar bet. Decimal = 2.10
• American -110: Risk 110 dollars to win 100 dollars. Decimal = 1.909. Most common US odds.

Teaser Parlays, Round Robins, and Same Game Parlays

• Teaser (6-point football): Move spread 6 points in your favor; 2-team teaser pays approximately minus 120. Most value when crossing key numbers 3 and 7.
• Round robin: All possible combinations from a selection. 4-team round robin creates six 2-leg parlays. Protects against one loss while winning five of six bets.
• Same Game Parlay: Correlated outcomes within one game, such as QB passing yards plus WR receiving touchdowns. Appealing but books typically under-price correlation benefit.

Parlay Expected Value

At minus 110 per leg, each leg has approximately negative 4.55 percent expected value. A 4-leg parlay EV compounds to approximately negative 16.8 percent — the book expects to keep about 16.8 cents of every dollar wagered on 4-team parlays long-term. Parlays become positive EV only when individual legs have positive expected value, when exploiting parlay odds boost promotions, or when finding correlated SGP outcomes the book has not fully priced.

Frequently Asked Questions About Parlays

What happens when one parlay leg pushes?

When one leg ties (pushes), most sportsbooks remove that leg and pay the reduced parlay. A 4-leg parlay with one push becomes a 3-leg parlay at the corresponding lower payout. Some books void the entire parlay on any push. FanDuel and DraftKings typically reduce the parlay; some offshore books may void entirely. Always check house rules before placing a parlay bet.

What is the largest legal parlay payout ever recorded?

In 2020, a bettor at FanDuel turned 2.50 dollars into 82,085 dollars on an 8-leg NFL parlay, a 32,834x return. In 2023, a bettor in Minnesota turned 25 dollars into over 100,000 dollars on a 13-leg parlay. These stories represent statistical outliers; for every massive parlay winner, millions of losing tickets funded the sportsbooks' margins. The house edge compounds significantly on each additional leg.

Are parlays ever a good bet?

Parlays can be strategically sound in specific situations: when combining positive expected value plays you identified independently; when using sportsbook parlay boosts that provide better-than-true odds; or when using correlated Same Game Parlays where the book underprices real correlations. Recreational parlays are essentially entertainment with poor expected value. Professional bettors treat parlays as occasional tools, not a core strategy.