For example, if you enter American odds of -125 into the US odds box, it will tell you that this equates to 1.8000 in decimal odds, 4/5 in fractional odds, 0.8000 in Hong Kong style, -1.2500 in.

1. American Odds Vs Decimal Odds
2. How To Convert American Odds To Decimal Odds
3. American Odds To Decimal Odds
4. Odds Conversion Calculator

American Odds Vs Decimal Odds

1. For 10 pounds wagered on this odds (read as 4 to 1) you are given potential profit of 40 pounds. 4/1 as a decimal odds will be represented as a multiplier of 5. It might be little confusing for new players, especially if the numbers are close (ex 17/20), but that’s where bookmakers.net odds.
2. American odds are a little trickier, as they operate using positive and negative odds. To convert positive odds to a decimal, divide the odds by 100 and then add 1. (+400/100) + 1 = 5.00. Converting American odds into fractional odds is simpler. Divide the odds by 100, and then reduce it to its simplest form, e.g., 400/100 is the same as 4.
3. Ex: American odds of -120 would win $100 on a $120 bet. Decimals quote the potential return should the bet succeed, relative to the stake. If $10 is bet at odds of 4, the total returned is $40 ($10 x 4) and the potential profit is $30 ($10 x 4 minus the $10 stake). Fractional Odds.

Did you know that, according to one UK-based bookmaker, there are 500/1 odds of Kanye West becoming the next US president? Depending on your viewpoint, it’s a brave or foolish bet. But while political betting markets aren’t offered in the US, these odds wouldn’t read as 500/1 in American bookies. They’d instead read as +50000, while it would be presented as 501.00 in Australia. That is to say, there is no single odds format used universally across the world. In this article, you will get to know the difference between American odds, fractional odds, and decimal odds.

Whether you’re trying your luck with seemingly absurd wagers, or gambling on more probable outcomes, you have to understand the odds used so you can always work out the best returns. The three main formats are American, fractional, and decimal odds and, as touched upon, different countries have different preferences. Let’s take a look at each format in turn.

American odds (also known as Moneyline or US odds) display the favorites with a minus sign and a number indicating how much you need to stake to win $100. The odds for the underdogs have a plus sign, showing the amount you’d win for every $100 staked. For example, in this guide to NFL odds, the odds for a game between the Chiefs and Packers are:

Chiefs +3 (-110)

Packers -3 (+110)

Ignoring the -3 and +3 figures, for now, the odds of +110 for the Packers indicates a lower probability of them winning the game. As such, it’s in the bookmaker’s interest to offer longer odds, which are more tempting. You’d win $110 for every $100 gambled on the Packers if they unexpectedly won, which would give you $210 including your original stake. If you bet on the Chiefs instead, you would need to wager $110 to take home $100, which would also win you $210, including your stake. So you’ll have to gamble more to win less on the Chiefs, hence why they are favorites.

The +3 and -3 represent the point spread. This means, to win a bet on the Packers, they would need to win the game by more than three points. To win on the Chiefs, they would need to lose by two points or less (or win the game). The point spread works as an equalizer so that betting on either team offers an almost even chance of winning, despite the clear disparity between the two teams.

Fractional odds are typically used by the UK and Irish bookmakers. These are usually written with a slash or a hyphen — for example, 7/1 or 7-1, pronounced as ‘seven-to-one’. These particular odds would mean that you win $7 for every $1 you wager. According to one soccer bookmaker, the three favorites to win the 2022 World Cup have the following odds:

France: 11/2

Germany: 13/2

Argentina 11/1

With shorter odds than the other two teams, France are the current frontrunners. And while you’d make $11 for every $2 spent on France and $13 for every $2 on Germany, you’d win $11 for each $1 you wagered on Argentina to be champions. So, say you bet $100, you’d make $550 profit on France [$100 x (11/2)], $650 on Germany [$100 x (13/2)], and $1100 on Argentina [$100 x (11/1)].

There are also reverse fractional odds, known as ‘odds-on’ prices. The bottom number of the fraction shows how many times your stake will be divided to calculate your winnings:

$1 stake divided by 2 = $0.50 winnings = odds of 1/2

$5 stake divided by 2 = $2.50 winnings = odds of 1/2

$10 stake divided by 2 = $

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5 winnings = odds of 1/2

Decimal odds are used by bookmakers in Europe, Australia, New Zealand, and Canada. These are very easy to understand, and instantly allow you to distinguish between the favorites and underdogs. With decimal odds, the number represents what you’d win for every $1 wagered, including your stake. To work out the potential return, simply multiply the stake by the decimal number. For example, one Australian bookmaker offers the following odds on who will win the 2020 US presidential election:

Joe Biden: 2:00

Donald Trump: 2:00

How To Convert American Odds To Decimal Odds

Mike Pence: 34:00

So, if you were to put $100 on either Biden or Trump, your total return would be $200 ($100 x 2.00). As this figure includes the initial stake, your net profit is $100. Whereas, if you wagered $100 on Pence, you’d take home $3400 ($100 x 34.00), with a profit of $3300. From this, it’s obvious that Biden and Trump are clear frontrunners to be the next US president, with Pence’s long odds showing how unlikely his chances of taking office are perceived to be.

It is important to note that American, fractional and decimal odds are simply alternative ways of presenting the same information, meaning you can convert between them easily.

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Convert odds between American, Decimal, and Fractional format using simple odds conversion formulas. Or, skip the math and use the odds converter instead!

American Odds To Decimal Odds

Decimal to Fractional

Remove 1 from the decimal and convert to a fraction, then reduce to simplest form:

(decimal-1) -> convert to fraction

Examples:

1.75: 1.75 – 1 = .75 = 75/100 = 3/4
2.20: 2.20 – 1 = 1.20 = 120/100 = 6/5

Decimal to American

To convert a decimal of 2.00 or higher:

moneyline = (decimal – 1) *100

Examples:

2.00: (2.00 – 1)*100 = 1*100 = +100
3.35: (3.35 – 1)*100 = 2.35*100 = +235

To convert a decimal of less than 2.00:

moneyline = (-100) / (decimal -1)

Examples:

1.9091 : (-100)/(1.9091 – 1) = (-100)/(0.9091) = -109.99 = -110
1.6579 : (-100)/(1.6579 – 1) = (-100)/(0.6579) = -151.98 = -152

Fractional to American

Over 1/1: Convert Fraction to Decimal and multiply by 100.

Moneyline = (fraction value)*100

Examples:

7/4: (7/4) * 100 = (1.40) * 100 = +140
6/5: (6/5) * 100 = (1.20) * 100 = +120

Under 1/1: divide -100 by the Fraction as a Decimal.

Moneyline = -100/(fraction value)

Examples:

1/4: -100/(1/4) = -100/.25 = -400
1/10: -100/(1/10) = -100/.1 = -1000

Fractional to Decimal

Convert the fraction to a decimal and add one.

Examples:

3/4: (3/4) + 1 = (.75) + 1 = 1.75
6/5: (6/5) + 1 = (1.20) + 1 = 2.20

American to Decimal

Positive Odds (“+”): Divide the moneyline by 100 and add 1.

decimal = (moneyline/100) +1

Examples:

+100: (100/100) + 1 = 1 + 1 = 2.00
+235: (235/100) + 1 = 2.35 + 1 = 3.35

Negative Odds (“-“): Divide 100 by the moneyline, then add this value to 1.00.

decimal = (100/moneyline) + 1

Examples:

-110: (100/110) +1 = 1 + 0.9091 = 1.9091
-152: (100/152) +1 = 1 + 0.6579 = 1.6579

American to Fractional

Positive Odds (“+”): Divide the moneyline by 100 and reduce to simplest form

(moneyline/100) -> simplest form

Examples:

+120: (120/100) = 6/5
+250: (250/100) = 5/2

Negative Odds (“-“): Divide 100 by the moneyline and reduce to simplest form

(100/moneyline) -> simplest form

Examples:

-120: (100/120) = 5/6
-300: (100/300) = 1/3

Odds Converter

Skip the math and easily convert odds between Fractional, Decimal and American format:

Odds Conversion Calculator

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Want to learn more? Read this full article on betting odds conversion.