Accumulator Payout Calculator

Work out accumulator payout instantly with clear inputs, formula shown and shareable results.

About Accumulator Payout Calculator

Combined odds are the average price raised to the power of the number of selections, and the bonus is applied to the gross return rather than the profit. Adding legs raises the headline payout exponentially while cutting the chance of winning by the same factor, which is why accumulator bonuses exist.

Formulas

Combined odds

combined = average odds ^ number of selections

Payout

payout = stake x combined odds x (1 + bonus)

Worked example

With the default values below, Accumulator Payout Calculator returns Total payout including bonus of $143.35. Change any input above and every figure here is recalculated in your browser.

Inputs used

Number of selectionsaccepts 1–20: 4
Average decimal odds per selectionminimum 1: 1.9
Stakeminimum 0.01: 10
Accumulator bonusaccepts 0–100 %: 10 %

Results

Total payout including bonus: $143.35
Combined odds: 13.0321
Profit: $133.35
Implied chance of winning: 7.6734%

Step by step

1Values used
2Combined odds
3Payout
4Total payout including bonus= 143.35
5Combined odds= 13.0321
6Profit= 133.35
7Implied chance of winning= 7.6734

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Accumulator Payout figure worked out?

combined = average odds ^ number of selections. Combined odds are the average price raised to the power of the number of selections, and the bonus is applied to the gross return rather than the profit.

Why does this matter?

Adding legs raises the headline payout exponentially while cutting the chance of winning by the same factor, which is why accumulator bonuses exist.

What do I need to enter?

Enter number of selections, average decimal odds per selection, stake, accumulator bonus. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.