How do you calculate acca returns?

Multiply the decimal odds of every leg together, then multiply by your stake. Fractional odds convert to decimal by dividing and adding one (5/2 is 2.5 + 1 = 3.5). Three legs at 2/1, 6/4 and evens are 3.0 x 2.5 x 2.0 = 15.0, so a £10 stake returns £150 including the stake, a profit of £140.

How does this bet return calculator work for a single bet?

Enter one leg and leave it as won. The returns and profit shown are those of a single bet at those odds, so it doubles as a simple bet returns calculator for any stake.

What happens to a void leg in an accumulator?

A void leg, for example a postponed match, is treated as odds of 1: the rest of the acca carries on and the stake rolls on to the remaining legs. Use the Void button on any leg to see the effect.

What does the chance implied by the odds mean?

It is 1 divided by the total decimal odds, shown as 1 in N. It is what the bookmaker's price says about the chance, and it still contains their margin, so the true chance is usually a little lower.

Does the calculator include Rule 4 deductions or each-way terms?

No. It covers straightforward win accumulators only. Rule 4 deductions, boosts, bonus terms, each-way, Lucky 15s and similar bets can change the real payout, so check your bookmaker's slip.

Acca & Bet Return Calculator

Work out the total odds, returns and profit of an accumulator in fractional, decimal or American odds. Mark each leg won, void or lost, set your stake in pounds and see the chance the odds imply. Nothing is stored and nothing is sent anywhere.

Odds format

You can also type 5/2, 3.5, +250 or evens in any leg: a slash means fractional, a + or - means American.

Leg 1 odds
Leg 2 odds
Leg 3 odds
Leg 4 odds

4 of 15 legs

Stake (£)

Enter odds for at least one leg.

Void legs count as odds of 1 (stake rolls on). One lost leg loses the acca. Rule 4 and each-way terms are not included. 18+, BeGambleAware.org.

How the acca calculator works

An accumulator pays out only if every leg wins, and its odds are the legs' decimal odds multiplied together. That is why a few modest prices build into a big number, and why the chance of the whole acca falls just as quickly. Three legs that each have a 50% chance land together only one time in eight.

Enter each leg's odds in the format you see at your bookmaker. Choose Fractional, Decimal or American above, or type 5/2, 3.5 or +250 in any box and the calculator will work out which you mean. Need to switch format? Use the odds converter.

Worked example

A £10 treble on 2/1, 6/4 and evens: 3.0 x 2.5 x 2.0 = 15.0 total odds, or 14/1. A winning treble returns £150 including the £10 stake, a £140 profit. If the middle leg is void, the odds become 3.0 x 2.0 = 6.0 and the same stake returns £60. If any leg loses, the return is £0.

Want the legs chosen for you? See today's AI acca tips or build your own with the acca generator, which shows the model's probability for every leg. Probabilities, not guarantees.

Acca calculator FAQ

How do you calculate acca returns?: Multiply the decimal odds of every leg together, then multiply by your stake. Fractional odds convert to decimal by dividing and adding one (5/2 is 2.5 + 1 = 3.5). Three legs at 2/1, 6/4 and evens are 3.0 x 2.5 x 2.0 = 15.0, so a £10 stake returns £150 including the stake, a profit of £140.
How does this bet return calculator work for a single bet?: Enter one leg and leave it as won. The returns and profit shown are those of a single bet at those odds, so it doubles as a simple bet returns calculator for any stake.
What happens to a void leg in an accumulator?: A void leg, for example a postponed match, is treated as odds of 1: the rest of the acca carries on and the stake rolls on to the remaining legs. Use the Void button on any leg to see the effect.
What does the chance implied by the odds mean?: It is 1 divided by the total decimal odds, shown as 1 in N. It is what the bookmaker's price says about the chance, and it still contains their margin, so the true chance is usually a little lower.
Does the calculator include Rule 4 deductions or each-way terms?: No. It covers straightforward win accumulators only. Rule 4 deductions, boosts, bonus terms, each-way, Lucky 15s and similar bets can change the real payout, so check your bookmaker's slip.

18+ only. ArtificialAcca shows probabilities, not guarantees: accumulators lose far more often than single bets, so never stake more than you can afford to lose. Free support is available at BeGambleAware.org.

Acca & Bet Return Calculator

Odds format

You can also type 5/2, 3.5, +250 or evens in any leg: a slash means fractional, a + or - means American.

Leg 1 odds
Leg 2 odds
Leg 3 odds
Leg 4 odds

4 of 15 legs

Stake (£)

Enter odds for at least one leg.

Void legs count as odds of 1 (stake rolls on). One lost leg loses the acca. Rule 4 and each-way terms are not included. 18+, BeGambleAware.org.

How the acca calculator works

Worked example

Want the legs chosen for you? See today's AI acca tips or build your own with the acca generator, which shows the model's probability for every leg. Probabilities, not guarantees.

Acca calculator FAQ

How do you calculate acca returns?: Multiply the decimal odds of every leg together, then multiply by your stake. Fractional odds convert to decimal by dividing and adding one (5/2 is 2.5 + 1 = 3.5). Three legs at 2/1, 6/4 and evens are 3.0 x 2.5 x 2.0 = 15.0, so a £10 stake returns £150 including the stake, a profit of £140.
How does this bet return calculator work for a single bet?: Enter one leg and leave it as won. The returns and profit shown are those of a single bet at those odds, so it doubles as a simple bet returns calculator for any stake.
What happens to a void leg in an accumulator?: A void leg, for example a postponed match, is treated as odds of 1: the rest of the acca carries on and the stake rolls on to the remaining legs. Use the Void button on any leg to see the effect.
What does the chance implied by the odds mean?: It is 1 divided by the total decimal odds, shown as 1 in N. It is what the bookmaker's price says about the chance, and it still contains their margin, so the true chance is usually a little lower.
Does the calculator include Rule 4 deductions or each-way terms?: No. It covers straightforward win accumulators only. Rule 4 deductions, boosts, bonus terms, each-way, Lucky 15s and similar bets can change the real payout, so check your bookmaker's slip.