Total Profit: $0.00
Implied Probability: 0.00%
';if(isNaN(wager)||wager<=0){alert('Please enter a valid wager amount.');return;}for(var i=0;i0){decimalOdds=(americanOdds/100)+1;}else if(americanOdds<0){decimalOdds=(100/Math.abs(americanOdds))+1;}else{decimalOdds=1.0;}totalMultiplier*=decimalOdds;stepHtml+='Leg '+(i+1)+': American '+americanOdds+' = Decimal '+decimalOdds.toFixed(3)+'
';}var payout=wager*totalMultiplier;var profit=payout-wager;var probability=(1/totalMultiplier)*100;document.getElementById('totalPayout').innerHTML=payout.toLocaleString(undefined,{minimumFractionDigits:2,maximumFractionDigits:2});document.getElementById('totalProfit').innerHTML=profit.toLocaleString(undefined,{minimumFractionDigits:2,maximumFractionDigits:2});document.getElementById('impliedProb').innerHTML=probability.toFixed(2);if(document.getElementById('showSteps').checked){document.getElementById('stepDetails').innerHTML=stepHtml+'Total Multiplier: '+totalMultiplier.toFixed(4);document.getElementById('stepDetails').style.display='block';}else{document.getElementById('stepDetails').style.display='none';}}
Using the Parlay Calculator
A parlay calculator is an essential tool for sports bettors looking to combine multiple individual bets into a single, high-reward wager. By linking several bets together, the potential payout increases significantly compared to placing individual bets. However, to win a parlay, every single selection (or "leg") in the bet must win.
This calculator allows you to input the American odds for up to 6 different legs to instantly see your potential return and total profit.
- Bet Amount (Wager)
- The total amount of money you are risking on the parlay.
- American Odds
- The odds for each specific game or outcome. For favorites, use a negative number (e.g., -110). For underdogs, use a positive number (e.g., +150).
- Number of Legs
- The total number of individual bets included in your parlay ticket.
How a Parlay is Calculated
The math behind a parlay involves converting American odds into decimal odds, multiplying them together, and then multiplying that total by your wager. The formula for converting American odds is:
Positive Odds: (Odds / 100) + 1
Negative Odds: (100 / |Odds|) + 1
Once you have the decimal odds for every leg, the final payout calculation is simple:
Total Payout = Wager × (Leg1 × Leg2 × Leg3…)
Calculation Example
Example: You want to place a $50 parlay on three NFL teams with the following odds: Team A (-110), Team B (+120), and Team C (-150).
Step-by-step solution:
- Convert Leg 1 (-110): (100 / 110) + 1 = 1.909
- Convert Leg 2 (+120): (120 / 100) + 1 = 2.200
- Convert Leg 3 (-150): (100 / 150) + 1 = 1.667
- Multiply Decimals: 1.909 × 2.200 × 1.667 = 6.999
- Calculate Payout: $50 × 6.999 = $349.95
- Total Profit: $349.95 – $50 = $299.95
Common Parlay Questions
What happens if one leg of my parlay pushes?
In most sportsbooks, if a leg in your parlay "pushes" (ends in a tie), that specific leg is removed from the parlay. For example, a 4-team parlay would simply become a 3-team parlay. Your payout will be recalculated based on the remaining legs.
Why are parlay payouts so high?
The payouts are high because the mathematical probability of winning all legs is low. The sportsbook multiplies the odds, reflecting the cumulative risk of multiple events occurring simultaneously. While the rewards are great, the house edge is typically higher on parlays than on individual straight bets.
Can I include different sports in one parlay?
Yes, most parlay calculators and sportsbooks allow "multi-sport" parlays. You can combine a point spread from an NBA game, a moneyline from an MLB game, and an over/under from an NFL game into one single ticket.