4 1 In Decimal Odds
Chance is a bettor’s friend. Outside sports betting, percentage terms are more commonly used when referring to it. Just take a look at a coin toss for an example. If you toss a coin, there is a 50% chance that it will land on heads and a 50% chance of it landing on tails. Any possible outcomes will always sum up to 100%. To complicate things a little further, let’s use a six-sided dice as an example. If you roll the dice, there are one in six chances that a particular number will come up. The chance in this scenario can be expressed as 16.66% [(1/6)100 = 16.66%].
Meanwhile in sports betting, odds represent the same principle. Odds are basically the reflection of the probability or chance of a particular outcome in an event. Bookmakers establish prices or odds that will reflect the chances of an outcome taking place. Most online bookies provide you with the choice of which type of odds you want to utilise.
As a result, the decimal odds of an event are the same as fractional odds converted to decimal and adding 1. Even odds, therefore, come out as 2.00 in decimal. If you opted for something like 4/1 then it would be displayed as 5.00, whereas 1/4 would be 1.25. A 1 in 500 chance of winning, or probability of winning, is entered into this calculator as '1 to 500 Odds are for winning'. You may also see odds reported simply as chance of winning as 500:1. This most likely means '500 to 1 Odds are against winning' which is exactly the same as '1 to 500 Odds are for winning.'
If you have tried betting on the best bookmakers online, you know that there are three types of odds that you will encounter. Europeans are more familiar with decimal odds (i.e. 2.00). On the other hand, US bettors are more familiar with fractional or US odds. It is also important to note that some bookies feature US odds without the option of conversion to decimal odds. Consequently, it can be quite difficult to calculate the odds, especially if you’re eager to use your betting bonus codes. So take your time to read the explanation of different odds below so you can gain a better edge on betting.
Decimal Odds
Instead of using percentage terms, bookmakers use decimal odds. Often referred to as European odds, decimal odds are most widely used by sports bettors in Europe, Australia and Canada. They are quite simple to understand, which is also the reason why they are a favourite way of representing of odds across the world.

It’s quite easy to calculate your potential winnings with decimal odds. It involves multiplying your stake by the odds. Here is a simple formula for decimal odds:
Potential Payout = Stake x Decimal Odds
Before you use your bookmakers no deposit bonus, take a look at the examples below to gain a better understanding of decimal odds.
Let’s say you’re placing a bet on a team with winning decimal odds of 1.82. If you place a £69.55 wager, then the potential return on your bet will be £126.58. Keep in mind that this calculation includes your original stake of £69.55, so your actual net profit on this winning bet would be £57. Simply put the calculation will be:

Potential Payout (£126.58) = Stake (£69.55) x Decimal Odds (1.82)
Always keep in mind that when you use decimal odds, your original stake is included in the calculation of your potential winnings. Hence, when you calculate your potential winnings, always remember to account for your original stake to determine your potential net earnings.
2.0 is the breakeven odds for decimal odds, since these will simply double your stake. If the decimal odds are lower than 2.0, then your potential winnings will be lower than your stake. On the other hand, if odds are higher than 2.0, then your potential payout will be higher than your stake.
Fractional Odds

Also known as UK Odds, fractional odds are more widely used in the United Kingdom and Ireland. This odds format was initially used in horse racing. Needless to say, it is one of the oldest types of odds that long-time bettors are familiar with. Just take a look at the best online bookmakers in the UK and you will see that most of them feature fractional odds.
Like decimal odds, fractional odds are quite easy to calculate simply because they are in fraction form. The second number to the right, or the denominator, is the bet amount while the first number on the left, or the numerator, is the amount that your bet will yield. Let’s say you wagered on a team with 10/15 fractional odds. This means that for every $150 bet, you can potentially earn a $100 net profit. If your bet wins, you get $250 ($150 original stake + $100 profit). Simply put the calculation says:
10/15 Fractional Odds: $150 to win $100 = $250
The slash (/) in fractional odds may also be represented by a colon (:). For instance, for a 4:1 (also referred to as ‘four-to-one’) odds, the bettor has to wager £100 to make a £400 profit. On the other hand, for 1:4 odds, you would win £25 on a £100 wager. In fractional odds, this simply means you’d have to divide the value of your wager to the value of the denominator to determine how much you can potentially win.
If you want to know how to convert fractional odds to decimal odds, you will be happy to know that the process is also simple. For example, for 4/1 or four-to-one fractional odds, the decimal odds would be 5.00:
4/1 = 4
4+1 = 5.00
US Odds (Moneyline Odds)

Also known as ‘moneyline odds,’ US odds are mainly used by sportsbooks that cater to bettors in the US. US odds are probably the easiest to comprehend since the odds are represented by the amount that the bettor will have to wager to win $100.
Depending on the bookmaker, you will find two basic types of ‘picks’ – the favourites and the underdogs. When you look at sports betting live odd comparisons, you will see that the favourites are identified with a minus (-) symbol. Better chances of winning are present when the absolute value of the number is higher. For example, a -250 favourite has a better chance of winning compared to a -200 favourite. On the other hand, the underdogs are identified with a plus (+) symbol.
$100 is always used as a baseline for US odds. It also means that in favourites, you are required to wager the provided odds to win $100. With underdogs, on the other hand, you have to wager $100 to win the provided odds. For example, if you bet on a -135 favourite, you must wager $135 in order to win a net profit of $100. On the other hand, a +350 underdog will require you to wager $100, but you’ll have a net profit of $350.
To convert US odds to decimal odds, simply use the formulas below:
Decimal = (Positive US + 100) / 100
Let’s say you’re betting on +150:
Decimal = (150 + 100) / 100
Decimal = 250/100
Decimal = 2.5
Decimal = (Negative US + 100) / Negative US
Let’s say you’re betting on -120 (ignore the ‘-‘ on your calculation)
Decimal = (120 + 100) / 120
Decimal = 220/120
Decimal = 1.83
Converting Odds
To give you a comparison of the values of the different odds format, take a look at the table below.
| Decimal Odds | Fractional Odds | Moneyline (US) Odds | Win % (% needed to break even) | Net Profit |
|---|---|---|---|---|
| 1.01 | 1/100 | -10,000 | 99.01% | 1.00% |
| 1.11 | 1/9 | -900 | 90.00% | 11.11% |
| 1.33 | 1/3 | -300 | 75.00% | 33.33% |
| 1.50 | 1/2 | -200 | 66.67% | 50.00% |
| 2.00 | 1/1 | +/-100 | 50.00% | 100.00% |
| 3.00 | 2/1 | +200 | 33.33% | 200.00% |
| 4.00 | 3/1 | +300 | 25.00% | 300.00% |
| 10.00 | 9/1 | +900 | 10.00% | 900.00% |
| 101.00 | 100/1 | +10,000 | 0.99% | 10,000.00% |
Understanding betting odds can be quite complicated. That is why it is good to know that there are established as well as latest online bookmakers with odds conversion capability depending on your preference. Browse through HitYah’s sportsbooks to discover the top bookmakers online.
With esports betting becoming more and more popular, it’s good to know about the different types of esports odds. These odds come in several forms. In this article I will take you through the basics so that you may fully understand what the various esports betting sites are showing you.
The three main types of esports betting odds are the following:
1. Decimal Odds
Decimal odds are called decimal because they come in decimal form.
Examples include: 1.80, 2.40, 4.00 and so on.
The meaning of these odds is very simple: your total returns are whatever the odds show you multiplied by the amount you wagered.
So if you bet $5 that team A will win the match and team A’s odds of winning are 1.80, you get a return of 5 * 1.80 = $9. If you wager $20 on a team whose odds are 4.00, the amount you get in case of a win will be 20 * 4.00 = $80.
Two things you’ll want to know here is how to convert odds to percentage and how to convert odds to probability.
Decimal Odds to Percentage
Another way of understanding decimal odds is using percentages.
So instead of 1.80, think of this as 180%. Instead of 2.40, think 240%. And 4.00 would actually mean 400%.
Of course, these percentages include the amount you’ve wagered. So it’s not 180% profit but 180% returns. The profit is actually just 80%. In the second case, the profit is 140%. In the third it’s 300%.
So you always have to decrease your initial amount or 100% in order to find what you’re actually making.
Decimal Odds to Probability
If you want to find out the win probability of a given bet in the bookmaker’s assessment, just do it this way: 2.00 is exactly 50%. Anything below that is less than 50%. Anything above that is more than 50%.
The general formula for turning decimal odds to probability is this: 100/odds.
If a team’s odds of winning are 5.00, their estimated chance of winning is 20%.
Of course, all of this is true in the bookmaker’s assessment. But that doesn’t mean it’s 100% correct. In fact, sometimes you will find the real favorite regarded as the underdog, simply because the bookmaker doesn’t understand what’s going on. These are the situations in which you can make a lot of money.
Ultimately, you shouldn’t be worried about what the bookmaker is telling you and simply assess the situation yourself, using your own esports knowledge and seeking bets that give you good risk/reward ratios.
2. Fractional Odds
Fractional odds look like this: 5/1, 8/1, 2/1 and so on. Their general form is x/y, which means this: you make a profit of x dollars for every y dollars you wager.
So in the first example (5/1), you make $5 for every $1 you wager. And that’s just your profit. The total amount you get back is actually $6 (your profit plus the dollar you wagered).
Just like with decimal odds, you’ll want to know how to convert odds to percentage and how to convert odds to probability.
Fractional Odds to Percentage
When turning fractional odds to percentage in order to calculate profitability, the general rule is to determine how many dollars you get for each dollar you wagered and then multiply that with 100. That will give you your profit in percentages.
So in the first case (5/1), you’d get a profit of 500%, while your total returns would be 600%.
But let’s take a more difficult example, such as 7/2. In this case, you’d get a profit of $7 for each $2 you wagered. To figure out the percentages, just divide 7 by 2 and then multiply with 100. What you’d get is 700/2 or 350%.
Fractional Odds to Probability
If you want to turn fractional odds to probability in order to figure out the win probability of a given team according to the bookmaker, just use the following formula: given the odds of n/m, the number you’re looking for can be found like this: (m/(m+n)) * 100.
For example: 4/1 would give us (1/(4+1)) * 100 or (1/5) * 100 or 100/5 or 20%.
3. American Odds
These types of odds are the most unusual and difficult to grasp at first, because it’s hard to deduce what they mean unless someone explains them to you.
And their meaning is this: when you see the minus sign (-), that’s the favorite. And the number followed by it represents the amount you need to wager to make a profit of $100.
When you see the plus sign (+), that’s the underdog. And the number followed by it represents the profit you’ll make for every $100 you wager.
For example:
Team A: -760
Team B: +585
If you wanted to bet on team A, for each $760 you wagered you’d make a profit of $100, meaning that you’d get a total of $860 back.
If you wanted to bet on team B, for each $100 you wagered you’d make a profit of $585, meaning that you’d get a total of $685 back.
American Odds to Percentage
4/1 In Decimal Odds
For underdogs, transforming American odds to percentage is simple: the odds themselves constitute the profit percentage. So in the above case, the percentage is 585%. Because you’re wagering $100 and making a profit of $585, So the percentage of the total return is actually 685%.
For favorites, what you do is this: you divide 10,000 by the number associated with them and you get the percentage you’re looking for.
In the example above, the result would be 10,000/760 = 13,15%. This would be your profit. So in total, you’d get back 113,15% of what you wagered.
American Odds to Probability
For the underdogs, the win probability can be obtained using the same method used for fractional odds.
1 1 4 Decimal Equivalent
So in our example, we’d have 5.85/1 and that would give us (1/(1+5.85)) * 100 or (1/6.85) * 100 or 100/6.85 or 14.6%. To calculate the win probability for the favorite, just subtract that from 100% and voila!
5 1 4% As Decimal

4 1 In Decimal Odds Worksheet
If you want to learn more about Dota 2 odds, League of Legends odds or any other kind of esports odds, just check out our guides!