● Bets with 2 results
Enter the decimal odds in “Odd 1” and “Odd 2”, followed by the total amount in “Total Bet Size”.
Press “CALCULATE” to distribute the total amount between both possible outcomes. The calculator will display “Amount 1”, “Amount 2”, the theoretical profit and its percentage.
Positive results appear in green and negative results in red. Press “CLEAR” to reset all fields.
Enter the decimal odds in “Odd 1”, “Odd 2” and “Odd 3”, followed by the total amount in “Total Bet Size”.
Press “CALCULATE” to distribute the total amount across the three possible outcomes. The calculator will display the three calculated amounts, the theoretical profit and its percentage.
Positive results appear in green and negative results in red. Press “CLEAR” to reset all fields.
Enter the first decimal odd in “Odd 1” and your target percentage in “Desired Profit %”.
Press “CALCULATE” to estimate the “Odd 2 Required” to reach that theoretical target.
Enter the first two decimal odds in “Odd 1” and “Odd 2”, followed by your target percentage in “Desired Profit %”.
Press “CALCULATE” to estimate the “Odd 3 Required” to reach that theoretical target.
Enter your estimated probability in “Probability %” and the available decimal odd in “Odd”.
The calculator compares your estimate with the probability implied by the odd and displays:
Implied Probability
Fair Odd
Expected Value
A positive expected value means your probability estimate is higher than the market-implied probability. A negative value means it is lower. This result depends entirely on the probability entered by the user and does not guarantee a winning result or profit.
The latest 20 successful calculations are stored locally on your device. You can review or permanently delete them from “Calculation History” in the side menu.
Where required, advertising consent preferences can be reviewed from “Privacy Choices” in the side menu.
Surebet Calculator is an independent mathematical and informational tool. It does not place or accept bets, process payments, connect to bookmakers or guarantee profits.
All results are theoretical estimates based exclusively on the values entered by the user. Positive expected value or a calculated margin does not guarantee a winning result.
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