Calculate your potential winnings based on your bet amount, odds, and bet type.
Decimal (e.g., 2.50)
Fractional (e.g., 3/2)
American (e.g., +150, -200)
Potential Profit: $0.00
Total Return: $0.00
Understanding Sports Bet Payouts
Sports betting involves predicting the outcome of sporting events and placing wagers on those predictions. When you place a bet, you're essentially agreeing to terms set by a bookmaker (or sportsbook), which include the odds. The odds determine how much you can win relative to your stake (the amount you bet).
This calculator helps you understand the potential profit and total return for various bet types and odds formats commonly used in sports betting.
Common Odds Formats:
Decimal Odds: Widely used globally. They represent the total amount you will receive for every unit staked. For example, odds of 2.50 mean you get back $2.50 for every $1 you bet. This includes your original stake.
Fractional Odds: Popular in the UK and Ireland. They are expressed as a fraction, with the numerator representing your profit and the denominator representing your stake. For example, 3/2 odds mean you win $3 for every $2 you bet.
American Odds (Moneyline): Predominantly used in the United States. They are expressed as a positive (+) or negative (-) number.
Positive Odds (+150): Indicate the profit you will make on a $100 bet. So, +150 means you profit $150 for every $100 bet.
Negative Odds (-200): Indicate the amount you must bet to profit $100. So, -200 means you must bet $200 to win $100.
How the Calculator Works:
The calculator takes your stake (Bet Amount) and the Odds to determine your potential winnings. It handles the three most common odds formats:
Decimal Odds:
Profit = (Bet Amount * Decimal Odds) – Bet Amount
Total Return = Bet Amount * Decimal Odds
Fractional Odds:
Convert fraction (e.g., 3/2) to a decimal: (Numerator / Denominator) + 1. So, 3/2 becomes (3/2) + 1 = 1.5 + 1 = 2.5.
Then use the Decimal Odds calculation.
American Odds:
If American Odds are positive (+):
Profit = (Bet Amount * (American Odds / 100))
Total Return = Bet Amount + Profit
If American Odds are negative (-):
Profit = Bet Amount / (Absolute Value of American Odds / 100)
Total Return = Bet Amount + Profit
Understanding these calculations allows you to make more informed betting decisions and manage your bankroll effectively.
function calculatePayout() {
var betAmount = parseFloat(document.getElementById("betAmount").value);
var oddsType = document.getElementById("oddsType").value;
var oddsValueStr = document.getElementById("oddsValue").value.trim();
var potentialProfit = 0;
var totalReturn = 0;
if (isNaN(betAmount) || betAmount <= 0) {
alert("Please enter a valid bet amount greater than zero.");
return;
}
if (oddsValueStr === "") {
alert("Please enter the odds value.");
return;
}
var odds = 0;
var profitMultiplier = 0;
if (oddsType === "decimal") {
odds = parseFloat(oddsValueStr);
if (isNaN(odds) || odds 0) {
var decimalOdds = (numerator / denominator) + 1;
potentialProfit = (betAmount * decimalOdds) – betAmount;
totalReturn = betAmount * decimalOdds;
} else {
alert("Invalid fractional odds format. Please use 'numerator/denominator' (e.g., 3/2).");
return;
}
} else {
alert("Invalid fractional odds format. Please use 'numerator/denominator' (e.g., 3/2).");
return;
}
} else if (oddsType === "american") {
var americanOdds = parseInt(oddsValueStr);
if (isNaN(americanOdds)) {
alert("Please enter a valid American odd value (e.g., +150 or -200).");
return;
}
if (americanOdds > 0) {
profitMultiplier = americanOdds / 100;
potentialProfit = betAmount * profitMultiplier;
totalReturn = betAmount + potentialProfit;
} else if (americanOdds < 0) {
if (americanOdds === 0) { // Prevent division by zero
alert("Invalid American odds value (cannot be 0).");
return;
}
profitMultiplier = Math.abs(americanOdds) / 100;
potentialProfit = betAmount / profitMultiplier;
totalReturn = betAmount + potentialProfit;
} else { // americanOdds === 0, which is not a valid odds for payout calculation
alert("American odds of 0 are not valid for payout calculation.");
return;
}
}
// Ensure results are formatted to two decimal places and not negative for profit
potentialProfit = Math.max(0, potentialProfit); // Profit cannot be negative (stake is always returned if bet wins)
totalReturn = Math.max(betAmount, totalReturn); // Total return should at least be the bet amount
document.getElementById("result").innerHTML =
`Potential Profit: $${potentialProfit.toFixed(2)}Total Return: $${totalReturn.toFixed(2)}`;
}