4 1 As A Decimal Odds

The most common odds format for European bookmakers is decimal, where a price such as 4.00 represents the equivalent of the 3/1 fractional price. In decimal prices, the returned stake in a successful bet is included the odds. With decimal odds of 5, for instance, £5 will be paid out for a winning bet of £1. This is the original stake of £1 plus winnings of £4. Decimal odds of 5 are the same as the fractional odds of 4/1. Bet in decimal odds at William Hill. Popularity of decimal odds. Decimal odds are the second most popular odds format used by online bookmakers.

• For example, to convert 1.50 into fractional: 1.50-1= 0.50. 0.50/1 is the result but is not pretty and bookies reduce it to the simplest form as integer/integer, in this case: 1/2. How do i convert moneyline to decimal? Americans use the positive and negative odds system. If it's positive just add 1 to (odd divided by 100) Example: 250 = 1+(250.
• With 4/1 betting odds, the decimal odds are 5.0. To get this number, you take the percentage chance of winning (in this case, 20%) and see how many time it goes into 100. 100 divided by 20 is 5. To figure out your winnings with decimal odds, you multiply the odds by your stake, and then subtract your stake from that number.
• The most common odds format for European bookmakers is decimal, where a price such as 4.00 represents the equivalent of the 3/1 fractional price. In decimal prices, the returned stake in a successful bet is included the odds. Decimal to American Odds / Moneyline Odds Converter.

The three main betting odds formats are American, Decimal, and Fractional. In this guide you will learn how each format works and how you can convert between them. You can also use our free odds calculator to automatically convert betting odds as well as calculating the implied probability.

It’s important to know how to convert betting odds if you want to communicate with sportsbettors across the world. People in the United States use American odds, while those in Europe use Decimal odds. Fractional odds are old school and are mainly reserved for horse-racing and long futures. While each format is used to display the same odds it can be confusing at times.

American Odds

American odds (otherwise known as money line odds) are the primary format used by offshore US sportsbooks. Odds are represented by positive and negative numbers (example: -150 and +130). Here is an NFL match from 5Dimes:

A betting market with worse than even odds in the American format is displayed with a negative number. These start at -101 and get increasingly negative depending on how much that team or market is favored to win. You need to risk that amount in order to profit $100. In the example above the Carolina Panthers have -150 odds to beat the Houston Texans. This means you would need to risk $150 in order to profit $100 for a total return of $250.

A betting market with better than even odds in the American format is displayed with a positive number. These start at +101 and get increasingly positive depending on how large of an underdog the team or market is. If you were to risk $100 you would profit that amount. In the example above the Houston Texans have +130 odds to beat the Carolina Panthers. This means that if one were to risk $100 they would profit $130 for a total return of $230. A market with even odds would be represented by +100 (risking $100 nets $100 profit).

While American odds might seem uncomfortable to those already acquainted with other formats it is something that is vital to learn. A lot of great sportsbetting resources are written by American bettors and that is surely something you will want access to if you plan on becoming successful.

Convert Decimal to American

To convert decimal odds of 2.00 or higher to American you must subtract 1 and then multiply by 100:

American Odds = (Decimal Odds – 1)*100

Decimal odds of 2.35 would be (2.35 – 1)*100 = +135. While the “+” is not necessary it is considered proper notation when discussing American odds. The formula changes when dealing with decimal odds of 1.99 or lower. Now we will subtract 1 from the decimal value and use that to divide -100:

American Odds = -100 / (Decimal Odds -1)

If we had 1.91 decimal odds we would have to divide -100 by 0.91 which comes out to -110.

Convert Fractional to American

To convert fractional odds of 1/1 or higher to American odds simply multiply the fraction by 100:

American Odds = (Fractional Odds)*100

If we had fractional odds of 6/5, all we would have to do is multiply it by 100 to have it at +120. To convert fractional odds strictly lower than 1/1 use it to divide -100:

American Odds = -100/(Fractional Odds)

If we had 10/11 fractional odds we would use it to divide -100 to get American odds of -110.

Decimal Odds

Decimal odds (sometimes called European odds) are used by European betting sites. It is the easiest odds format to get use to since it directly represents the total payout from a winning bet.

If a betting market has even odds it is represented by 2.00. Markets that are worse than even will have 1.99 or lower, and markets greater than even will be 2.01 or higher. In order to calculate your payout (the total return) simply multiply your risk by the decimal odds.

Total Payout = Risk * Decimal Odds

For the game above the Chicago Cubs have 1.57 odds to defeat the Washington Nationals. If we were to bet $500 on the Cubs our return would be the product of these two values:

$500 risk * 1.57 odds = $785 Payout

It’s important to keep in mind that your payout/return includes both your initial stake and the profit you stand to make. Decimal odds are the best option for parlays/accumulators since the ticket odds will be the product of all individual wager odds.

Convert American to Decimal

If you want to convert positive American odds to decimal format you must first divide the money line odds by 100, and then add 1:

Decimal Odds = (American Odds/100) + 1

If we had a +150 underdog in the NHL we would convert it to decimal format using the above operation:

(150/100) + 1 = 2.50

Things are a bit different when we are starting with negative American odds. In this case we will use the absolute value of the money line odds to divide 100, followed by adding 1:

Decimal Odds = (100/American Odds) + 1

In order to convert a -185 American line to Decimal we would divide 100 by 185, and then add 1 to the quotient:

(100/185) + 1 = 1.54

Convert Fractional to Decimal

To convert betting odds from fractional to decimal all you need to do is convert the fraction into a decimal and then add 1:

Decimal Odds = Fractional Odds + 1

The reason we must add 1 is because while fractional odds represent the relative profit for a given risk, decimal odds represent the entire return (initial risk included). If we were to convert 3/4 into decimal we would first put the number in decimal form (0.75) and then add 1 for 1.75.

Fractional Odds

Fractional odds (otherwise called British odds) are an old-school odds format. They are used to directly represent profit relative to amount staked.

The fractional odds format represents even-odd markets as 1/1. Markets with worse than even odds would have a smaller numerator than denominator (example: 19/20). Markets with better than even odds would have a larger numerator than denominator (example: 16/5).

Fractional odds are different than decimal odds because they represent the profit and not the total return. If you risk the denominator you will profit the numerator. For example in the image above Nottingham Forest have 19/20 odds to win. If you risk $20 you would profit $19 (for a total return of $39).

Out of the three odds formats we have seen this one is the most outdated. It’s main present-day uses are for horse-racing or when discussing long odd markets such as futures and championship odds.

Convert American to Fractional

Going from American to Fractional odds formats is one of the easiest ones. To convert positive American odds to fractional simply divide the money line by 100:

Fraction As Decimal Odds

Fractional Odds = American Odds / 100

For negative American odds divide 100 by the money line odds:

Fractional Odds = 100 / American Odds

Convert Decimal to Fractional

To convert betting odds from decimal to fractional subtract 1 and then convert to fractional form. This is because fractional odds represent profit, and decimal odds represent total payout (including your initial risk).

1 4 In A Decimal

Fractional Odds = Decimal Odds – 1

Odds Calculator

If you want to quickly convert betting odds between American, Decimal, and Fractional you can use our free odds calculator. This isn’t math class so you don’t have to do the calculations on your own. But it is important to have a basic understanding of the different odds formats in order to communicate with other sportsbettors and benefit from useful sportsbetting literature.

For most British punters, odds are best understood as being fractional. It’s simple to work out that if something is 5/1 then for every £1 you bet you’ll get £5 back. Yet as more and more foreign bookmakers are entering the UK market they’re also offering decimal odds more readily than fractional ones, confusing people that have never dealt with them before.

In actuality, decimal odds are just as easy to understand as their fractional cousins. The decimal format is used across Europe, with only British bookmakers steering away from them. The key thing to remember is that the unit stake of 1 is always included, so decimal odds of 1.97 mean that you’ll get 97p back on top of your £1 stake.

Decimal Odds

The decimal way of displaying odds is the favoured manner of doing so across continental Europe as well as in countries such as Australia, New Zealand, Singapore and Canada. Defectively any country that uses metric measurement will generally use decimal odds.

Learning how they work is also useful for you’re looking at a betting exchange, therefore, but also if you want to place bets when you’re abroad and don’t want to have to convert things into fractional odds.

Simply put, decimal odds give you the payout amount that includes the stake. 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.

Whilst chucking formula into the conversation is unlikely to make things easier, here’s how to think of decimal odds:

Return = Initial Wager x Decimal Value

In other words, returns on a £100 bet on Liverpool to beat Manchester United at decimal odds of 2.00 would be £100 x 2.00, or £200. To phrase it differently, simply multiply your stake by the odds and you’ll get your return. So a £100 bet on a wager with odds of 1.25 would return £125. That’s why they’re favoured on the exchange, because they’re so easy to calculate.

Working Out The Odds

Odds are another way of discussing the implied chances of something happening. Let’s say that darts player A is going up against darts player B and the bookmakers have decided that A has an 80% chance of winning. This obviously means that B has a 20% chance of winning, meaning that our fair bookie needs to price it up 80% / 20%.

In order to come up with the decimal odds our bookmaker takes the total chance of all outcomes happening, or 100, then divides it by the 80% chance they think player A has got. 100/80 is 1.25, so they’re player A’s decimal odds. For player B, meanwhile, we divide 100 by 20%, or 100/20. That equals 5.00, so they’re that player’s odds.

In order to figure out the probability given to an event, you simply need to reverse engineer that line of thinking. If something has been given odds of 6.00 then the math is 100/6, which works out at 16.6%. The reason 2.00 is the equivalent of Evens is that 100/2.00 equals 50%. Odds of 1.5 in decimal means the probability of that happening is 100/1.5, or 66.6%.

Decimal v Fractional Odds

The trouble with decimal odds is that they seem more complex than they actually are for people that have grown up using fractional odds in betting. In reality, of course, it’s much easier to figure out your total return using decimal odds as opposed to fractional, because with fractional odds you need to add your stake in afterwards.

To put it another way, fractional odds are good at working out your net profit, whereas decimal odds are best for figuring out your total return for your bet. In decimal odds, Evens is 2.00. That means anything above 2.00 is you getting a larger return than just your stake and anything less than 2.00 is the equivalent of getting your money back plus less then what you bet.

If you’re using a bookmaker that is offering fractional odds and you want to figure out what that would be in decimal then you simply divide the first number by the second and then add 1. So odds of 1/4 is 1 divided by 4, or 0.25, plus 1 for 1.25. Equally you might find yourself in a position where the odds are decimal but you want to know what they’d be in fractions.

When that is the case, the easiest way to do it is to take 1 away from the decimal and then convert what’s left into the most simplified fraction possible. So odds of 6.00 would be 6.00-1, which is 5 and becomes 5/1. To use a more complex example, 8.50 as decimal odds would be 8.50-1, which is 7.50. The most simplified fraction would be 15/2.

The table at the top show a list of the most obvious odds as both decimal and their fractional equivalents.

Having read the above, you might be able to see the table making a bit more sense. A £1 bet at 5/2, for example, would return £2.50 plus your initial £1 stake. That amounts to £3.50, which is why the decimal odds equivalent of 5/2 is 3.50. Equally, a £1 stake on something with fractional odds of 1/3 would mean that you’d get 33 pence back plus your £1 stake, of £1.33. The fractional odds are 1.33.

The key thing with this is not to overly test yourself. Most bookmakers will give you the choice about whether you’d like to see your odds displayed as fractional or decimal, so figure out which one is for you and then go from there. You don’t need to sit and do maths problems to work out what you’re betting, but it’s handy to know how it all works.

4 1 As A Decimal Odds Calculator

If you are interested in American Odds and how they work see our dedicated article.