# Fractional vs Decimal odds

What are the fractional odd?

Fractional odds are the most traditional form of odds that are also known as UK Odds. It mostly used to indicate the probabilities, as the probability of something happening, and about the amount that the bookmaker thinks the result is worth.

Fractional odds are always displayed as two numbers that are separated by a forward slash i.e.

5/1 – ‘five to one’ you can also read as five to one against

1/1 – ‘evens’

1/2 – ‘one to two’ also read as two to one on

What is the decimal odd?

Decimal odds mostly used in Europe, Australia, New Zealand, and the Canadian continent. It's a little easier to understand and work with. Favorites and underdogs can be seen immediately by looking at the numbers.

The decimal number represents the amount of each win for \$1. For decimal odds, the number represents the total payout of the profit. In other words, your stake is already included in the decimal number that makes calculation easier for total payout.

Total payout can be calculated as

Total Payout = Stake x Decimal Odd Number

Understanding of Fractional & Decimal Betting Odds

Fractional Odds Explained

When you see two numbers that are separated by a slash, i.e. 5/1, it’s a fractional betting odds. There are two numbers matter one at the right side which means the unit stake you are betting in and second is the left hand which means is the potential return per unit stake.

In this case of 5/1 bet, your bet is £1, so if it is successful than you’ll win £4. The total return on this bet would be £5. (This all means that initial £1 stake plus £4 winnings)

The probability of a 5/1 chance winning is 16% - based on his calculation 1 / (5 + 1) = 0.16

It means (potential return / stake = winnings)

Decimal Odds Explained

Decimal odds are alternative in the fractional format to seeing betting odds. Which preference to view odds in is a personal preference for customers. For the decimal odds, we can calculate the winnings with

Winnings = (odds × stake) – stake

Decimal odds are always written with the decimal sign. For example, we can write 9.0, and if we write it in fractional odd than we can write 8/1. When you see decimal odds showed its means these include your unit stake of one.

If you bet £1 at 9.0 and you win then you will get back £9, its means initial £1 stake and £8 winnings. The possibility of a 9.0 chance winning is 10% that’s based on the following calculation

1 / (9 + 1) = 0.10

You can calculate (9.0 chance = 8/1)

1 / (9 + 1) × 100 = 10% winnings

This equation is known as the decimal odd equation

How Do Odds Work in Betting?

For your knowledge, according to well-known betting websites, there is a 2% chance that Dwayne "The Rock" Johnson will win the US presidential election in 2020. "The Rock" odd against winning the election are listed as 50/1 which means there are 50 chances to lose and one chance to win. You can calculate it as 1/51 = 0.0196 which is the probability of winning.

There are three types of odds which are fractional odds, decimal odds, and American odds. These have different ways of resenting the same thing and no specific difference in terms of payouts.

How Fractional Odds Work

Fractional odds are written with a slash (/)” or a “hyphen (-) i.e. 9/1 or 9-1 and announced as “nine-to-one.” These are the most preferred odds across the world and the world’s largest bookmakers use it.

A fractional listing of 9/1 odds means that you can win \$9 against every \$1 you wager its means you can get back your investment with winnings. In other words, you will receive your stake that’s \$1 in addition to the profit which is \$9, which results in total payout \$10. So if you stake \$10 at 9/1, you should get the total payout of \$100, it means \$90 profit with\$10 stakes.

Where total potential will calculated by

Total Payout = [Stake x (Numerator/Denominator)] + Stake

For example, popular sports betting websites showed the fractional odds for the betting on the team to win 2017-18, NBA Championship. They have selected three teams with the lowest odds against winning.

Golden State Warriors: 10/11

Houston Rockets: 9/4

Cleveland Cavaliers: 7/1

How Decimal Odds Work

Decimal odds are written with the decimal sign and a bit easier to understand and work with. Favorites and underdogs can be seen immediately by looking at the numbers, through odds for vs odds against you can find what are your best options.

The decimal odd number represents the amount of each win for \$1 each. It represents the total payout instead of profit. In other words, having the decimal number stakes are included in it and you have no need to add these. It makes the total payout calculation easier.

You can calculate the total payout with the following equation

Total Payout = Stake x Decimal Odd Number

For example, a popular betting websites prices some candidates to win the 2020 U.S. Presidential Election. They make a list of decimal odds for the top three candidates as of March 21, 2018.

Donald Trump: 3.00

Bernie Sanders: 11.00

Elizabeth Warren: 13.00

This number represents only the amount that can be won against every \$1 at stake. So, if anyone bets \$100 on Donald Trump to be re-elected, president. The total payout for this person is \$300, it includes \$100 of initial stake with a net profit of \$200.

Odds Table for Fractional to Decimal Betting

You can convert the fractional betting into its decimal amount. In the following table, the left-hand column is the fractional betting that is from smallest to largest and right side showing fractions grouped by their denominator.

 1/1000 = 0.001 1/4 = 0.25 1/100 = 0.01 3/4 = 0.75 1/50 = 0.02 5/4 = 1.25 1/33 = 0.03 7/4 = 1.75 1/25 = 0.04 9/4 = 2.25 1/20 = 0.05 11/4 = 2.75 1/16 = 0.06 13/4 = 3.25 1/14 = 0.07 15/4 = 3.75 1/12 = 0.08 1/11 = 0.09 1/10 = 0.1 1/5 = 0.2 1/9 = 0.11 2/5 = 0.4 1/8 = 0.12 3/5 = 0.6 1/7 = 0.14 4/5 = 0.8 3/20 = 0.15 6/5 = 1.2 1/6 = 0.16 7/5 = 1.4 2/11 = 0.18 8/5 = 1.6 1/5 = 0.2 9/5 = 1.8 1/9 = 0.22 11/5 = 2.2 1/4 = 0.25 12/5 = 2.4 2/7 = 0.28 13/5 = 2.6 3/10 = 0.3 14/5 = 2.8 1/3 = 0.33 7/20 = 0.35 4/10 = 0.4 1/6 = 0.16 9/20 = 0.45 2/6 = 0.32 1/2 or 5/10 = 0.5 3/6 = 0.5 11/20 = 0.55 4/6 = 0.66 6/10 = 0.6 5/6 = 0.83 13/20 = 0.65 = 7/10 = 0.7 = 3/4 = 0.75 1/7 = 0.14 8/10 = 0.8 2/7 = 0.28 17/20 = 0.85 3/7 = 0.42 9/10 = 0.9 4/7 = 0.57 19/20 = 0.95 5/7 = 0.71 1/1 = 1 6/7 = 0.85 21/20 = 1.05 11/10 = 1.1 23/20 = 1.15 1/8 = 0.125 12/10 = 1.2 3/8 = 0.375 5/4 = 1.25 5/8 = 0.625 13/10 = 1.3 7/8 = 0.875 27/20 = 1.35 14/10 = 1.4 29/20 = 1.45 1/9 = 0.11 15/10 = 1.5 2/9 = 0.22 31/20 = 1.55 4/9 = 0.44 16/10 = 1.6 5/9 = 0.55 33/20 = 1.65 7/9 = 0.77 17/10 = 1.7 8/9 = 0.88 7/4 = 1.75 18/10 = 1.8 37/20 = 1.85 1/10 = 0.1 19/10 = 1.9 2/10 = 0.2 39/20 = 1.95 3/10 = 0.3 2/1 = 2 4/10 = 0.4 21/10 = 2.1 5/10 = 0.5 22/10 = 2.2 6/10 = 0.6 9/4 = 2.25 7/10 = 0.7 23/10 = 2.3 8/10 = 0.8 24/10 = 2.4 9/10 = 0.9 5/2 = 2.5 11/10 = 1.1 26/10 = 2.6 12/10 = 1.2 27/10 = 2.7 13/10 = 1.3 11/4 = 2.75 14/10 = 1.4 28/10 = 2.8 15/10 = 1.5 29/10 = 2.9 16/10 = 1.6 3/1 = 3 17/10 = 1.7 31/10 = 3.1 18/10 = 1.8 32/10 = 3.2 19/10 = 1.9 13/4 = 3.25 2/1 = 2 33/10 = 3.3 34/10 = 3.4 7/2 = 3.5 1/11 = 0.09 36/10 = 3.6 2/11 = 0.18 37/10 = 3.7 3/11 = 0.27 15/4 = 3.75 4/11 = 0.36 38/10 = 3.8 6/11 = 0.54 39/10 = 3.9 7/11 = 0.63 4/1 = 4 8/11 = 0.72 9/2 = 4.5 9/11 = 0.81 5/1 = 5 10/11 = 0.9090 11/2 = 5.5 6/1 = 6 13/2 = 6.5 1/12 = 0.08 7/1 = 7 1/14 = 0.07 15/2 = 7.5 1/16 = 0.06 8/1 = 8 1/20 = 0.05 17/2 = 8.5 1/25 = 0.04 9/1 = 9 1/33 = 0.03 19/2 = 9.5 1/50 = 0.02 10/1 = 10 1/100 = 0.01

In this table any number that is over 10 will simply be its number to 1.  I.e.15 = 15/1.  125 = 125/1. Etc.