Payout Calculator

How to Use the Payout Calculator

Enter your bet amount and odds to instantly calculate payout, profit, ROI (return on investment), and implied probability. Supports 5 odds formats.

Supported Odds Formats

• Decimal — Common in Europe. 2.50 = receive 2.5× your stake
• Fractional — Common in UK. 3/2 = win 3 for every 2 staked
• American — +150 means win $150 on $100, -200 means bet $200 to win $100
• Hong Kong — Decimal minus 1. 1.50 = decimal 2.50
• Malay — Positive = same as HK, negative = inverse for underdog

What is ROI?

ROI (Return on Investment) is the profit as a percentage of the bet amount. An ROI of 150% means $150 profit on a $100 bet. It's a key metric for evaluating long-term betting profitability.