Most of the new betting sites will also allow you to toggle between different odds types in their settings. You can use our betting odds converter for any participant, market or sport you’d like. Simply enter the odds you’re wanting to convert, and our odds converter tool will calculate it for you!

Comparing decimal odds across European bookmakers for major football leagues
Analyzing fractional odds movement for horse racing ante-post markets
Tracking American moneyline odds shifts in NBA playoff games
Monitoring Asian handicap odds for Champions League knockout stages

Fraction or fractional odds tell you the ratio of profit you’ll win compared to the stake of your bet.

Bookmaker	Manchester City	Arsenal	Liverpool	Odds Format
Bet365	2.10	4.50	5.00	Decimal
William Hill	2.15	4.33	5.25	Decimal
Pinnacle	2.08	4.60	5.10	Decimal
Betfair Exchange	2.12	4.70	5.30	Decimal

For example, fractional odds of 6/1 tells you that you can win 6 times the size of the bet you place. You should use the type of betting odds you feel most comfortable with.

Player	Men's Odds	Player	Women's Odds
Carlos Alcaraz	2.75	Iga Swiatek	3.00
Novak Djokovic	3.50	Elena Rybakina	4.50
Jannik Sinner	4.00	Aryna Sabalenka	5.00

Traditionally, UK betting bet new customer offers betting app uk sites use fractional odds, but European sites, and indeed many newer sites, often default to decimal odds instead.

Comparing early odds for Oscar award categories across prediction markets
Monitoring odds for entertainment events like Eurovision Song Contest winners
Analyzing odds convergence for financial spread betting indices
Tracking odds for reality TV show eliminations

The difference between decimal odds and fractional odds is just the way that they are formatted and presented to you. There is no difference in the payouts. Lucky 31 explained – Find out all there is to know about the Lucky 31 bet.

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Take decimal odds of 3.5 – subtracting 1 gives you 2.5, or 2.5/1. Since UK bookmakers don’t usually display odds with decimals, both numbers are multiplied by 2 to give the standard fractional format: 5/2. To convert moneyline odds into decimals might seem like a difficult concept to grasp, but you’ll be pleased to hear that we found the process relatively simple. Below, you’ll find a couple of examples for converting moneyline odds into decimals. For positive moneyline (American) odds, you’ll have to divide the money line by 100, before adding 1.

The importance of comparing odds

Below, you’ll see an example of this process. For negative moneyline odds, you should disregard the negative symbol in front of the odds for calculating it into a decimal. You’ll need to divide 100 by the moneyline odds, before adding 1. Using our betting odds converter to calculate the implied probability is undoubtedly the quickest and easiest method to use, but you can also help to know the manual conversion process. Divide the second number by the total of the first number and second number. Lucky 15 calculator – Enter the details of your Lucky 15 bet and find out your potential return. Betting odds explained – A helpful guide to how betting odds work and how to calculate your returns. Lucky 63 explained – Find out all there is to know about the Lucky 63 bet. Our OddsMatcher is a core matched betting tool designed to help you compare bookmaker odds with betting exchange odds quickly and accurately. It’s suitable for both beginners and experienced bettors who want to reduce qualifying losses, maximise free bet value, and place matched bets with confidence. AiProfit’s matched betting OddsMatcher scans bookmakers and betting exchanges in real time to find closely matched odds for upcoming events.

All Sports Predictions

OddsGuard finds the best price across 75 books in real time — replacing tools that charge $200–$600/month. Using the odds converter tool is very straightforward in that the decimal, moneyline and fraction odds will automatically update once you input one value, but we’ll also explain how to calculate odds conversions without the tool below. Converting fraction odds to decimal, or indeed moneyline (American) odds, really is a straightforward process when you use our free odds converter tool. Here’s a step-by-step guide to walk you through it. Enter the odds you want to calculate.

Table of the Best Betting Sites by Sport

We’ll use the fractional odds of 7/4 as an example. In this case, the 7 would need to be entered in the first ‘fraction’ box, and the 4 in the second, as below. The rest of the boxes will be automatically filled. So here you can see that the decimal equivalent of 7/4 is 2.75, the moneyline odds would be +175, and the implied probability is 36.4%. Our odds converter works in each direction, so you can also start by entering the decimal odds 2.75 to find the fractional odds conversion is 7/4. By creating a free AiProfit account, you can access the OddsMatcher and start identifying efficient matched betting opportunities straight away. An OddsMatcher is a matched betting tool that compares bookmaker odds with betting exchange odds to find the closest available matches. This allows you to place a back bet with a bookmaker and a lay bet on an exchange with minimal loss, helping you lock in consistent results from betting offers. Our OddsMatcher tool operates through a simple and efficient process.

How to Convert Fraction Odds to Decimals

As an alternative to using our betting odds converter, you can also check out the most common fractional odds below, alongside the decimal bet betting promos uk odds, moneyline odds and the implied probabilities of each set of odds. Using the Fulham vs West Ham match as an example, you can scan the table to see Fulham are 11/8 to win the match, which can also be written as 2.37 in decimal odds or +137 in moneyline odds, with an implied probability of around 42% of claiming victory. This compares to West Ham who are priced at 2/1 in fractions, 3.0 in decimals and +200 using moneyline odds, with an implied probability of 33%. That’s all you need to know. However, some may be interested in the maths behind the conversions too.

Sports betting basics

You can convert fractional odds into decimal odds by dividing the first number (the numerator), by the second number (the denominator), and adding 1. Example: To convert fractional odds of 6/5, start by dividing 6 by 5 to get 1.20. Then add 1, and you’ll get the decimal odds equivalent of 2.20. Converting decimal odds to fractional odds can be a bit more challenging than doing it the other way around, which is why our betting odds calculator is a handy tool to use. For example, if you start with decimal odds of 6.0, simply subtract 1 to get 5.0, which translates to fractional odds of 5/1. Input Your Bet Details: Select the event, market, bet type (e.g., win or each way), and stake amount. Scan Bookmakers and Exchanges: The OddsMatcher scans supported bookmakers and betting exchanges to find the closest available odds.

Easy Odds

Simply enter the type of odds you’re dealing with (fractional, decimal, moneyline or implied probability) into our betting odds converter. The other ways of describing those odds will then be accurately calculated and instantly displayed. For example, entering fractional odds of 4/1 will show you the decimal equivalent is 5, the moneyline equivalent is +400, and the implied probability is 20%. Using the odds converter helps you to understand any odds you find by converting them to the odds type you are most familiar with. For example, if you use a specific betting site and realise they use fractional odds, you can convert those odds to decimal odds that you may be more familiar with. Display Matched Bets: It displays matched bets and prioritises selections with the closest odds match. Calculate Stakes: The OddsMatcher works alongside our calculator to help you calculate accurate back and lay stakes. Place Your Bets: Place your back bet with the bookmaker and your lay bet on the exchange shown. Matched Betting Calculator: Use our Matched Betting Calculator to calculate lay stakes, liability, and profit for qualifying bets and free bets with accuracy. Odds Converter: The Odds Converter allows you to convert odds between fractional and decimal formats, making it easier to compare prices across bookmakers and exchanges.

Football Betting Services

If you’re on this page, there’s a chance you’d like to permanently switch the odds format on your favourite betting site. In most cases, you should look for a settings option, but here’s a summary of the process on a few of the most popular bookmakers’ sites to help you out. There are three different types of betting odds which you can use, and you can typically choose which type of betting odds to use as they should be available on all betting sites. The three different formats have no effect on the odds, they are just alternate ways of using them. Here are the three odds with examples of what they look like on bet365.

OddsPortal – Helpful filters and comparison tools

Decimal (European) Odds: These odds show you how much you could win for every £1 bet. Fractional (British) Odds: These odds show the ratio of the amount of profit you could win if your bet comes through. Moneyline (American) Odds: These odds are slightly different as they could have a + or a – symbol beside them. If there is a negative sign in front of the number, it shows you how much you need to bet to win £100. If they have a + sign then it shows the amount you win if you bet £100. Our goal at AiProfit is to provide reliable matched betting tools that help you place bets efficiently and accurately. With access to the OddsMatcher and supporting tools, you can manage the full matched betting process in one place. The OddsMatcher compares bookmaker odds with betting exchange odds to help you find close matches for matched betting, making it easier to place accurate back and lay bets. Choose selections where the bookmaker odds and exchange odds are closely matched. Closer matches typically reduce qualifying losses and make matched betting more efficient. Always double-check the market, selection, and odds before placing your bets.

Horse Racing Enhanced Odds

Equation: Denominator / (numerator+ denominator ) * 100 = implied probability Example: 4/1 implied probability can be calculated as 1 / (4+1) * 100 = 20% Again, using our betting odds calculator for your odds conversion from decimal odds to implied probability is the simplest solution, but the manual process is as follows. Divide 1 by the decimal, and multiply it by 100%. Equation: (1/ decimal odds) * 100 = implied probability Example: 1 /4.00 * 100 = 25% Implied probability is crucial because it translates complex betting odds into a clear percentage, revealing exactly how likely the bookmaker believes an event is to happen. By comparing this percentage against your own predictions, you can easily identify profitable opportunities via ‘value bets’ where you believe the actual chance of an outcome is higher than what the odds suggest. Find other bet calculators plus hundreds of pounds in attractive betting offers, including the bet365 bonus code and the William Hill promo code. Select an event, market, and bet type in the OddsMatcher.

Sports Betting Odds Comparison