CALCULATOR

Accumulator Calculator

Enter a price for each leg and a stake. The calculator multiplies the prices as a mathematical illustration; it does not evaluate whether the legs are related or likely to win.

A football supporter viewing a generic bet slip on a phone in the stadium — Illustration for this learning tool; it does not represent live odds or a recommendation.

Enter values

Use decimal odds unless a field says otherwise. Values are processed locally in this browser and are not saved.

Enter values and select Calculate. The result is an arithmetic illustration only.

Calculators do not predict match outcomes or estimate the chance of winning a particular bet. Check the relevant market rules and use figures only as an educational illustration.

Formula

Combined decimal odds = odds₁ × odds₂ × … × oddsₙ. Gross return = stake × combined odds.

Example

Three hypothetical legs at 1.50, 2.00 and 1.80 produce combined decimal odds of 5.40 before any bookmaker adjustments.

What this result tells you

The product of the entered decimal prices.
A gross return estimate and the net amount above the stake if every leg wins.

What it leaves out

It does not model correlated selections, odds boosts, partial wins, void legs, deductions or settlement rules.
A longer accumulator has more ways to lose; the calculation does not make it safer.

Common errors

Entering fractional odds in decimal fields.
Forgetting that all legs generally need to settle successfully.
Assuming multiplied prices prove a high chance of winning.