Sport Bet Calculator

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Sport Bet Profit Calculator

Calculate your potential winnings and payouts instantly

Decimal (e.g. 2.50) Fractional (e.g. 5/2) American (e.g. +150 or -200)
Total Payout 0.00
Potential Profit 0.00

Understanding Sports Betting Odds

Whether you are a seasoned punter or a beginner, understanding how to calculate potential returns is crucial for effective bankroll management. Different regions use different odds formats, which can be confusing. Our Sport Bet Calculator simplifies this process by converting these formats into clear profit and payout figures.

The Three Main Odds Formats

  • Decimal Odds: Most common in Europe and Australia. The figure represents the total payout per unit staked (e.g., 2.00 odds means a $10 bet returns $20).
  • Fractional Odds: Popular in the UK. They show the ratio of the profit won to the stake (e.g., 5/1 means you win $5 for every $1 bet).
  • American Odds: Used in the US. Positive numbers (+) indicate how much profit you make on a 100 stake. Negative numbers (-) indicate how much you must stake to make a 100 profit.

Calculation Examples

Example 1: Decimal Odds
Stake: 50 | Odds: 3.50
Calculation: 50 x 3.50 = 175.00 Payout. (Profit = 125.00)
Example 2: American Odds (Favorite)
Stake: 100 | Odds: -200
Calculation: You must bet 200 to win 100. For a 100 bet, profit is 50. (Total Payout = 150.00)
function calculateSportsBet() { var stake = parseFloat(document.getElementById('stakeAmount').value); var format = document.getElementById('oddsFormat').value; var oddsStr = document.getElementById('oddsValue').value.trim(); var payout = 0; var profit = 0; var impliedProb = 0; if (isNaN(stake) || stake <= 0 || oddsStr === "") { alert("Please enter a valid stake amount and odds value."); return; } try { if (format === "decimal") { var decOdds = parseFloat(oddsStr); if (isNaN(decOdds) || decOdds 0) { profit = stake * (amOdds / 100); impliedProb = (100 / (amOdds + 100)) * 100; } else { profit = stake / (Math.abs(amOdds) / 100); impliedProb = (Math.abs(amOdds) / (Math.abs(amOdds) + 100)) * 100; } payout = profit + stake; } document.getElementById('displayPayout').innerText = payout.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('displayProfit').innerText = profit.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('impliedProbability').innerText = "Implied Probability: " + impliedProb.toFixed(2) + "%"; document.getElementById('betResultArea').style.display = "block"; } catch (e) { alert("Error: " + e + ". Please check your input format."); } }

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