Accumulator Calculator
An accumulator combines two or more selections into a single bet. All legs must win for the bet to pay out, which multiplies both the potential return and the risk.
How it works
Multiply the decimal odds of every leg together to get the combined price. Multiply the estimated probabilities (as decimals) together the same way to get the combined win probability.
Worked example: Three legs at 1.80, 1.95, and 1.70 combine to 1.80 x 1.95 x 1.70 = 5.97 - a $10 stake returns $59.70 if all three win.
FAQ
Why does one weak leg hurt an accumulator so much?
Because every leg must win. A single low-probability selection drags the combined probability down multiplicatively, not just by its own share.
Is an accumulator ever better than singles?
It offers a higher payout for the same total stake, but a lower chance of any return at all. The Bet Slip Doctor compares both for your exact slip.
Related tools
18+. These tools are analytical only - they do not accept bets, do not predict outcomes, and do not guarantee profit. Gamble responsibly. Sports betting regulations vary by jurisdiction; you are responsible for understanding and complying with the laws where you live.
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