Accumulator Calc

Acca Calculator: combined odds and payouts

An accumulator (acca, also known as a parlay) bundles several selections into a single bet. Every pick in the slip has to win for the bet to pay out, but the combined odds grow with each selection you add. That's what makes accas so appealing: $20 can turn into $200 in a single evening. The flip side is that the risk grows just as fast.

The calculator multiplies the odds of every selection in your acca. Say you've picked three outcomes at 1.80, 2.10, and 1.55. The combined odds come out to 1.80 × 2.10 × 1.55 = 5.86. A $100 stake would pay out $586, with $486 of that being pure profit. Tempting, right?

Now look at the probability. Even if each event has about a 55% chance of winning, the odds of all three coming through are 0.55 × 0.55 × 0.55 = 16.6%. That's roughly one in six. Add a fourth selection, and the chance drops to around 9%. The calculator shows this probability so you know exactly what kind of risk you're taking on.

Enter odds in any format: decimal, American, or fractional. The calculator detects the format automatically and returns results the same way. Add and remove selections from your slip using the buttons provided.