betcalculator.ai is a free tool for working out what a bet will pay, or what a settled bet should have paid. It is built and run by SJ Marketing Ltd, a digital marketing company based in Swansea, Wales.
How the calculations work
Every calculation follows standard UK settlement rules. Full cover bets are split into every combination of selections they contain, and each combination is settled on its own. Void selections count as odds of 1, each way place parts are paid at the fraction you choose, and Rule 4 deductions come off the winnings, not the stake. The worked examples on each page are produced by the same code that runs the calculator.
Bookmaker extras such as Best Odds Guaranteed, acca boosts and Lucky 15 bonuses vary between bookmakers and aren't included, so your actual payout can be higher.
How the site is funded
The site is free to use. We may earn a commission when someone opens an account with a bookmaker through links on the site. Links to bookmakers are marked as ads, and they never affect how a bet is calculated.
Contact
Spotted a calculation that doesn't match your bet slip? Email hello@betcalculator.ai with the details and we'll look into it.