The Bet Calculator Betmentor is designed to answer one question quickly: if these selections win, what do I get back? Whether you are settling a simple single or a complex Lucky 63, the workflow is the same, and once you have done it once it becomes second nature.
This walkthrough covers every control on the tool, in the order you will use them, so your first calculation is accurate and your later ones are fast. Nothing here requires an account, and every calculation runs in your browser.
Step 1: Choose Your Bet Type
Start by selecting the bet type from the dropdown, such as single, double, accumulator, Lucky 15 or Lucky 63. The calculator adjusts the number of selection rows and the way returns are combined based on what you pick, so this is the most important first choice.
Step 2: Set Your Odds Format
Switch between fractional and decimal odds depending on how your bookmaker displays prices. The format only changes how you type the numbers; it never changes the payout. If you are unsure how the two relate, our guide to decimal vs fractional odds explains the conversion.
Step 3: Enter Your Stake
Type your stake in the stake field. For multi-bet wagers such as a Lucky 63, this is usually your unit stake, and the tool multiplies it across every bet line for you. Always glance at the total stake so you know your full outlay.
Step 4: Add Your Selections
Enter the odds for each selection and mark whether it won, placed or lost. Use the add-row control to include more selections where the bet type allows it. Clear inputs here are what make the final figure trustworthy.
Optional Conditions
Toggle each-way to split your stake into win and place parts, and use the Rule 4 and dead heat options where a race calls for them. These conditions reduce returns in specific, defined ways, covered in our articles on each-way bets and Rule 4 deductions.
Step 5: Calculate and Read the Results
Press calculate to see your total returns and your profit. Returns include your stake; profit is what you win on top of it. If a figure looks off, re-check each selection's odds and result, since a single mistyped price changes everything downstream.
Tips for Accurate Results
- Double-check the odds format matches your bookmaker.
- Confirm the total stake before you place the real bet.
- Reset the calculator between unrelated bets to avoid stale inputs.
Treat the output as a mathematical estimate of returns, not a prediction of results. The calculator tells you what a winning slip pays; whether it wins is down to the sport.