Decimal Odds Explained: How Do Decimal Odds Work?

If you place a bet, you can come across different ways of showing the odds. One of the easiest to understand is decimal odds. 

Decimal odds show you how much you could win for every £1 you bet. They are commonly used in the UK and across Europe. 

Here at Bet442, we’ll break down exactly how decimal odds work. By the end, you’ll know how to read them and use them to make informed betting choices. Whether you’re a beginner or just need a quick refresher, this guide aims to make decimal odds simple to understand. 

Decimal Betting Odds Explained

Decimal odds are straightforward once you know what to look for. They are always shown as a single number with a decimal point. 

For example, 2.50, 1.75, or 3.20. 

The number represents the total amount you get back from a winning bet, including your original stake. 

If you bet £1 on odds of 2.00 and win, you’ll get £2 back in total: your £1 stake and £1 in winnings. 

To work out your potential return, multiply your stake by the decimal odds. For instance, a £10 bet at odds of 1.50 would return £15 (10 x 1.50) – your £10 bet and £5 in winnings. 

It’s that simple. Decimal odds quickly show you the potential return on your bet, making it easy to see if a bet is worth placing. 

Many people find decimal odds easier to understand than fractional odds, which is why they are popular in many parts of the world. 

Example: 1/2 Odds in Decimal

Let’s look at an example of converting fractional odds to decimal odds. 

Fractional odds like 1/2 can seem confusing at first, but the decimal version makes it easier to understand. 

To convert 1/2 odds to decimal, simply divide 1 by 2 (1 ÷ 2 = 0.50). Then, add 1 to the result (0.50 + 1 = 1.50). So, 1/2 odds in decimal form are 1.50. 

With these odds, for every £1 you bet, you’ll get a total return of £1.50 if you win. This includes your original £1 stake plus £0.50 in winnings. 

This simple conversion makes it easier to see how much you stand to win with your bet. 

Converting Decimal Odds

Let’s take a look at some other examples and situations of converting decimal odds. 

Fraction to Decimal Odds Conversion

Converting fractional odds to decimal is straightforward. 

Take the fraction and divide the top number by the bottom number. Then, add 1 to the result. 

For example, with odds of 3/1: 

• 3 ÷ 1 = 3
• 3 + 1 = 4.00

So, 3/1 in decimal form is 4.00. 

How To Convert Decimal Odds To Percentage Chance

You can also convert decimal odds to understand the percentage chance of winning. 

The formula is simple: (1 / decimal odds) x 100. 

For example, with odds of 2.50: 

• 1 ÷ 2.50 = 0.40
• 0.40 x 100 = 40%

So, odds of 2.50 suggest a 40% chance of winning. 

American Odds To Decimal

American odds can appear as positive or negative numbers. If the odds are positive, divide the number by 100 and then add 1. 

For example, with +150 odds: 

• 150 ÷ 100 = 1.50
• 1.50 + 1 = 2.50 

So, +150 in decimal form is 2.50. 

If the odds are negative, divide 100 by the number, ignore the minus sign, and add 1. 

For example, with -200 odds: 

• 100 ÷ 200 = 0.50 
• 0.50 + 1 = 1.50 

So, -200 in decimal form is 1.50.