Bet Calculator

Betting on sports is one of the most popular things to do in the UK where the majority of the population already has at least one registered account at any online betting site. Despite the popularity and attention online betting has gotten the latest years, it is surprisingly how little focus that is put upon finding the best odds, bonuses and accumulator combination out there. To solve that problem, this site serves the purpose of a full and complete bet calculator where you just within seconds can find out how much profits you can make out of your bet. This site also aims to provide you with information of the best betting bonuses available which we suggest that you use as a tool to further increase both winnings and long term profits. Not only having a universal bet calculator available, we also want to provide you with knowledge and education so you by yourself can understand how to calculate odds or convert odds when they are expressed in either fractions, decimals or American.

Bet Type
Each Way
OutcomeOddsRule 4

Calculate Bookie Margin

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Margin for the bookie is:

Mansion Bet logo
50% up to £50
Bonuscode: MB50
Jetbull logo
50% up to £75
£35 Weekly Reload Bonus
888 logo
bet £10 get £30
Bonuscode 30FB

Depending on what betting site you use or from where you play, odds can be expressed differently. In General, following types are most common:

2. Fractional odds (Traditional UK)

If you are from the UK, you have most likely seen this type of odds if you have ever visited a betting site or betting shop. In addition, it is used in international horse racing all over the world. If you are new to fractional odds, it has the benefit that it expresses your future profits in relation to your stake. For example, if you bet £10 on an odds 4/1 you will receive £40 in profits if you win.

2. Decimal odds (Common in the rest of Europe)

If betting at a site outside the UK, decimal odds are most common as it is used all over Europe and also most common in other parts of the world. Also notice that decimal odds are most common on beting exchanges. Compared to fractional odds, decimal odds also include your stakes when winning. Simply, if you bet £10 on a 4,00 odds you will receive £40 where of £10 is your stake.

2. American odds

As the name implies, American odds are mainly used by US bookmakers where the amount is expressed as how much you will win from a $100 bet. If it is negative, the amount is expressed in a way that tells you how much you need to bet in order to win $100. As an example, +150 = 2,5 expressed as decimals or 6/4 in fractions. That is because your profits of betting $100 on such an odds will be $150. As another example, -150 equals 1,66 or 4/6 since a $150 bet on such an odds would mean $100 in profits.

To make it even more simple for you, beneath is a short guide you can learn by heart:

  • Decimal to fractional: Subtract 1 and find the closest fraction. E.g. 3.5-1 = 2.5 = 5/2. Converting fractional to decimal, just to the opposite expressing your fractions in decimals and add 1. E.g. 5/2 + 1 = 2.5+1 = 3.5
  • American to decimal: it its positive, add 100 and divide by 100. E.g. 170 becomes (170+100)/100 = 2.7 If it is negative, instead divide your odds by -100 and add 1. As an example, -250/-100 + 1 = 0.4+1 =1.4

Betting sites

When betting in sports there are some factors that are more important to consider than others. At first, make sure to play at a safe and secure betting site that are trustworthy. If playing form the UK, we always recommend to verity that the gambling site is licensed by the UK Gambling Commission which is the authority that hands out the necessary license required for operating online. For the players, this is great since the authority sets the guidelines and assures quality for the site. For instance that payments must follow specified guidelines, that the gambling site do not go bankrupted if someone wins big, that they do not market offers that does not exist and so on. By looking in the bottom of the site you will find the logo of the Gambling Commission together with their license number.

Another good idea when choosing a betting site to play at is to make sure what selection of odds and what amount of in-play options that are offered. When you feel sure about a bet and have checked it in our odds calculator, nothing is worse than finding out that the match you were planning to bet on is unavailable. Further, one of the most important factors for a betting site to qualify as good is that fast withdrawals. If you want to make good return on investment on your bets, good odds, bonuses and fast payouts are essential. Reason is that if you find higher odds at any other betting site should have the possibility to move your gambling money from one account to another.

Betting bonuses

Perhaps the best way to increase winnings is to claim the betting bonuses available. More or less every betting site available from the UK offers some sort of welcome package for their new customers. In most cases, the welcome offer consists of a deposit bonus which means that your first deposit and in some cases deposits are match with a certain percent. In a lot of cases the deposit is doubled but at some betting sites you can find exclusive offers that triples the deposits. As a rule of thumb, we always recommend claiming a bonus above 100% since such a bonus will give you a statistical edge over the betting company.

Free bets

In addition to deposit bonuses, it is very common that the betting sites hands out what is called free bets which is an opportunity to bet completely for free. Simply, free bets is the equivalent of an online casinos free spins which you can read more about at CasinoViking. Depending on what site you play, free bets are often handed out with the amounts of £5-£10 per game. This type of bonus is very common amongst gambling sites to hand out completely for free, meaning that not even a deposit is required. When you find such no deposit free bets, it is highly recommended that you claim them since it is a good opportunity to win real money without any risk.


Another common betting bonus is called cashbacks, which means that you will receive some of your money back the weeks you do not win anything. Normally, betting sites that offer cashbacks gives back around 10-20% over a certain time period like a week or even a month. If being smart, this means that if you started with bad luck at a gambling site with cashback, you should not continue to play there trying to win back your money. Instead, you should become a member of a new betting site. Reason is that if you win at site number two, you will still receive a refund from the first betting site and hence increasing your winnings.

Wager requirements

Something worth noticing is that the majority of betting bonuses available follows with something that’s normally called wager requirement. Such a requirement means that you must play (wager) the bonus money or free bet money a few times before the bonus money converts to real cash you can withdrawal. Normally, you need to wager the bonus amount between three and eight times combined with another condition that the odds you bet upon must be above 1/4 (1.25) or similar. The reason that these requirements exists is to avoid that customers become members sign up, makes a deposit, triples their money and then leave without playing. However it is worth noticing that some betting sites hands out free bets with no or very low wager requirements.

Several betting sites

To achieve the best possible return on investment, we always suggest being a member of many betting sites. Not only does it mean more bonuses compared to if playing at only one site but more importantly, you will be able to compare odds between the different sites you are a member at and choose the one with best potential outcome. Using our bet calculator you can within minutes compare your potential profits between different sites and see how the winnings differ and thereafter choose the best option. By becoming a member of the gambling sites we recommend and using our bet calculator for comparisons, you will within almost no time be able to increase your winnings by as much as 20%, which can be the difference between winning or loosing in the long run. Adding the fact that you also will be able to claim several welcome bonuses, your winnings might increase even more.