This calculator helps you quickly determine the potential payout and profit from your sports bets based on the stake and the odds offered. Understanding different odds formats and how they translate to winnings is crucial for any bettor.
Decimal Odds
Decimal odds are the most common format used globally and are very straightforward to understand. They represent the total amount you will receive for every £1 staked, including your original stake.
Calculation: Payout = Stake × Decimal Odds
Profit: Profit = Payout – Stake
For example, if you bet £10 (stake) at decimal odds of 3.50:
Payout = £10 × 3.50 = £35.00
Profit = £35.00 – £10.00 = £25.00
Fractional Odds
Fractional odds, often seen in the UK and Ireland, are presented as a fraction (e.g., 5/2). The number on the left (numerator) represents your profit, and the number on the right (denominator) represents the stake required to win that profit.
The calculator first converts all odds types (fractional and American) into decimal odds. It then uses the decimal odds and your stake to calculate the potential total payout and the net profit. All calculations are performed internally using JavaScript to provide instant results.
function calculateBet() {
var stakeInput = document.getElementById("stake");
var oddsInput = document.getElementById("odds");
var oddsTypeSelect = document.getElementById("oddsType");
var stake = parseFloat(stakeInput.value);
var oddsValue = parseFloat(oddsInput.value);
var oddsType = oddsTypeSelect.value;
var decimalOdds;
var profit;
var payout;
// Input validation
if (isNaN(stake) || stake <= 0) {
alert("Please enter a valid stake amount greater than zero.");
return;
}
if (isNaN(oddsValue) || oddsValue 0) {
decimalOdds = (oddsValue / 100) + 1;
} else {
decimalOdds = (100 / Math.abs(oddsValue)) + 1;
}
}
// Ensure decimalOdds is valid after conversion
if (isNaN(decimalOdds) || decimalOdds <= 1) {
alert("Invalid odds value or conversion resulted in an invalid decimal odds.");
return;
}
// Calculate payout and profit
payout = stake * decimalOdds;
profit = payout – stake;
// Format results to two decimal places
var formattedPayout = payout.toFixed(2);
var formattedProfit = profit.toFixed(2);
var formattedStake = stake.toFixed(2);
// Display results
document.getElementById("result-value").innerText = "£" + formattedPayout;
document.getElementById("result-details").innerText = "Stake: £" + formattedStake + " | Potential Payout: £" + formattedPayout + " | Potential Profit: £" + formattedProfit;
}
// Optional: Add event listener for Enter key press on input fields
document.getElementById("stake").addEventListener("keypress", function(event) {
if (event.key === "Enter") {
event.preventDefault();
calculateBet();
}
});
document.getElementById("odds").addEventListener("keypress", function(event) {
if (event.key === "Enter") {
event.preventDefault();
calculateBet();
}
});