Accumulator Calculator

What is an accumulator bet 

It’s easy to just come to a website like ours and use our accumulator calculator, but it’s always good to get an understanding of the bets you are placing. Here we’ll tell you all you need to know and then leave it up to you if you still want to use our accumulator calculator or calculate the bets yourself.

An accumulator, known as a parlay in North America, is a bet with more than one selection. A pay-out is dependent on all selections winning. An accumulator is a generic term and refers to any number of selections (unlike a double or a treble bet which are types of accumulators that specifies the number of selections, two and three respectively), where the winnings from each selection is rolled over and bet on the next selection. In betting shops throughout the UK you will hear accumulators referred to as acca’s, which is a slang name given to this type of bet. Accumulators’ and multiples are extremely popular as they give punters the opportunity to win large amounts for relatively small stakes.

Bookies that offer accumulator betting 

All bookies except betting exchanges will offer accumulator betting, although this doesn’t mean you can combine any combination of bets. This is because many bets can be what are called related contingencies, a bet where the outcome of one of the selections effects the possibility of another selection happening. These bets will be blocked by all bookies. Also some bookmakers might restrict certain selections to singles only, in order to better manage their risk. But on the whole any bookie worth its salt will offer accumulator betting.

Before placing your accumulator, as with before parting with your money for any other service, it’s worth shopping around. Here are the bookies we recommend you should sign up for if you enjoy a accumulator bet, and the reason why is quite simple. They offer a win bonus dependent on the number of selections in you multiple.

Titan Bet Accumulator calculator Titan bet offers what they call a multi bet bonus, this is a bonus paid out to winning bets. It’s a percentage of the money returned, and the percentage value ratchets upwards with each extra selection up to a massive 100% extra. This bonus is for bets places on major European football leagues.

Accumulator calculator bonus 1
Youwin Accumulator calculator Youwin has a similar offer with a multi bonus of up to 100%. This bonus is for the major European football leagues and cup competitions.

Accumulator calculator bonus 2
Bet365 Accumulator calculator Bet365 offer is almost identical to that of youwin with just a slight difference in bonus percentages. This offer is for the major football leagues and cups.

Accumulator bonus
Bet365 also offers a bonus called 50% Parlay Bonus; this is like the bonus for soccer but the offer is for American and Canadian sports. All you have to do is place a pre-event accumulator (parlay) at any price combining teams from the following leagues. NHL, NBA, NFL, MLB, NCAAF, CFL and NCAAB. If your bet is a winner an extra bonus will be paid.

Accumulator bonus
Even with these very similar promotions it’s still worth chopping and changing witch bookie you use depending on the number of selections in your accumulator. As you can see Titan bet offers a better percentage than the other two for smaller multiples whereas Youwin and Bet365 have a better bonus pay out for larger accumulators.

Accumulator calculations 

The maths used to calculate accumulators of any size is pretty simple. All that needs to be done is multiply all the decimal odds together and then multiple this by the stake bet.

(Odds1 x Odds2 x Odds3 x …… x Oddsn) x stake = winnings

Where n is equal to the number of selections in the accumulator.

An example of how our Accumulator calculator works 

Having a calculator is always going to help when it comes to calculating massive accumulators but as long as you have a decent level of competence in multiplication you’ll find that for simple win only bets one isn’t necessary.

For this example we are going to work out a five-fold accumulator. To keep it simple we are going to say all five selections have odds of 5.0 and the stake is £10. Using the equation from the calculations section above we can see we need to multiple all the decimal odds together followed by multiplying this value with the stake.

(5 x 5 x 5 x 5 x 5) x 10 = 31,250

As you can see, this is why punters love multiples. The potential returns from a bet with only a small stake is very attractive. A total return of £31,250 for only a £10 stake is going to please the grumpiest of gambler. Now you’ve see the maths behind accumulators, feel free do add these bets into the accumulator calculator and see it in action.


A sports betting lover with many years of industry experience, working in roles such as in-play trader, pre-event odds compiler, risk management and trading solutions (a team with the goal of automating all aspects of the trading room).

Click Here to Leave a Comment Below 7 comments
Andy - 3rd May 2015

Would you say it is better to do single bets or accumulator bets?

    Brian - 3rd May 2015

    I’d say that is the wrong question. The question you should be asking is; are my bets value?

    If you are getting good value on all your selections then singles or accumulator bets doesn’t overly matter. The only question is then how much of a losing streak can your betting bank handle and can you always find bets offering such good odds.

    Although many sites will say only go the single bet route, I’d say take the accumulators – if you can answer yes to the questions above. Because in accumulators you will be multiplying your value, whereas in singles you’ll be just adding it. Also as the article points out, many bookies offer an added bonus to winning accumulators.

    Brian - 27th June 2015

    It has been a while since you asked the question, but i have finally written an article on the subject.


Harry - 11th March 2016

Don’t no why I haven’t googled for an acca calculator before. It makes life that little bit easier.


Leave a Reply: