The ProfitDuel Odds Converter is one of a range of game-changing tools we offer at ProfitDuel to help you level-up your matched betting profits.

Our Odds Converter rapidly converts odds into American, fractional and decimal odds formats, giving you ultimate clarity over your selections. 


Iphone screen showing odds converter tool


Just like individuals have their preferred make of clothing, bettors also have their favored odds format. That's why we have developed a convenient Odds Converter Calculator.

These preferences often fall in line with the cultural norms of an area. In the UK, fractional odds dominate due to their roots in horse racing betting. However, they are limited to familiar fractions, which became problematic as betting transitioned to online platforms.

On the other hand, decimal odds offer a more precise representation of odds with a wider range. Pinnacle quotes odds to three decimal places, and they have gained popularity with the rise of online betting. 

Screen showing American betting odds and decimal betting odds
Screen showing fractional betting odds and percentage betting odds

In the United States, we have developed our own method of assessing bet risk in sports betting - American odds.


These odds are determined based on the potential return of $100 (when the implied probability is less than 50%), indicated with a + sign, or the amount you need to bet in order to win $100 (when the implied probability is greater than 50%).


Understanding the significance of different betting odds and being able to convert between American, decimal, and fractional odds in your mind is valuable.


However, our Odds Converter Calculator conveniently handles all of this for you.


Effortlessly convert between American odds, decimal odds, and fractional odds and never slip up calculating your stake or payout again.




Start levelling up your matched betting profits with the ProfitDuel $1 trial.


Here you'll gain access to our full range of premium tools including the Odds Converter Profit TrackerDutch MatcherDutch Calculator.


What's more, we'll give you all the strategies and support you need to get you on the road to earning $1,000s in risk-free profits each month. 


So get started and see what over 400,000 customers across the US and Europe have been shouting about. 


Trusted in the US and in Europe. Our customers rate us as excellent.

This is how our members rated the service:


4.8 /5

based on 780+ reviews

4.8 /5

based on 560+ reviews


  • American odds are a way of representing betting odds commonly used in the United States. They can be expressed as either positive or negative numbers. Positive odds (+) indicate the potential profit on a $100 bet, while negative odds (-) show how much you need to bet to win $100.

  • Decimal odds are a format for expressing betting odds commonly used in Europe and other parts of the world. They represent the potential return on a bet, including the initial stake. For example, odds of 2.50 mean a $1 bet would return $2.50 if successful, including the original $1 stake.

  • Fractional odds are a traditional way of representing betting odds in the UK and Ireland. They are displayed as a fraction, such as 5/1, where the first number represents the potential profit, and the second number represents the stake. For example, 5/1 odds mean a $1 bet would return $6 ($5 profit + $1 stake) if successful.

  • Six of the most powerful benefits of using an odds converter to convert betting odds are: 


    1. Simplifies Comparison: Easily compare odds across different formats (fractional, decimal, moneyline) for better decision-making.

    2. Saves Time: Instantly converts odds, saving you from manual calculations and allowing quicker bets.

    3. Understandable: Translates complex odds into a format you understand, reducing confusion and increasing confidence in wagers.

    4. Enhances Strategy: Enables strategic analysis by converting odds to a familiar format, aiding in bet selection and risk assessment.

    5. Accessibility: Provides accessibility for international betting markets, allowing you to explore a wider range of odds and opportunities.

    6. Reduces Human Error: Minimizes mistakes in odds conversion, ensuring accurate betting choices and avoiding potential financial losses.

  • You don't need to know complex math to convert odds from format to format, our Odds Converter does that for you. 

    However if you're keen to know the formulas for odds conversion, there are several depending on the format you want to convert. You can check them out in the three FAQs below. 

  • The formula for decimal odds to fractional odds is:

    Decimal Odds = Fractional Odds + 1

    For example, if the fractional odds are 5/1, the decimal odds would be calculated as 5/1 + 1 = 6. This means 5/1 fractional odds are equivalent to 6.00 decimal odds.
  • The formula for American odds to decimal odds is: 

    Decimal Odds = (Positive American Odds / 100) + 1

    For example, if the American odds are +200, the decimal odds would be calculated as (200 / 100) + 1 = 2 + 1 = 3.00. This means +200 American odds are equivalent to 3.00 decimal odds.

  • The formula for American odds to fractional odds is: 
    Fractional Odds = (Positive American Odds / 100) + 1

    For example, if the American odds are +200, the fractional odds would be calculated as (200 / 100) + 1 = 2 + 1 = 3/1. This means +200 American odds are equivalent to 3/1 fractional odds. If the American odds are negative, convert them to positive before applying the formula (e.g., -200 becomes +200).
  • Online sportsbooks offer promotions and free bets to attract new players to their website. By following and trusting our process, being disciplined and reading/watching all of the guides on ProfitDuel, you can take advantage of these offers and turn them into risk free cash.

  • All you need is to be in the state of New Jersey, New York, Pennsylvania or Ohio (to access the sportsbooks), have a registered SSN, home address, and bank account (to be able to sign up to the sportsbooks), a small amount of money as a starting bank (you will not lose this, but you need it to place bets and unlock the free bets), and a ProfitDuel account.

  • We would recommend having $300 available to maximise your profits and make your first $100. If you do not have that much available, you can start with a lower amount, but it means you will make less profit. As mentioned, you will not lose this starting bankroll if you use our technique, you simply need it to unlock the free bet.

  • Using our Dutch Matcher you will be able to find events to bet on at most times. You will find that the major sports such as the NFL have the best odds and also the best offers associated with them.

  • Move on to the next opportunity! Don’t beat yourself up that life might have gotten in the way, there are plenty of opportunities to make money so forget about it and concentrate on the next offer.

  • We want everyone to be able to take advantage of the opportunity! Due to the fact sports betting is still only getting started in the US, not many people know yet that you can profit from all of the signup offers.

  • You can absolutely do this side hustle on your own and without ProfitDuel. However, our software makes the whole process much easier and will maximize your profits – without our software you will need to do parts of this technique manually which takes a long time and you won’t make as much money. Also, we do all the hard work for you in terms of finding the free bets and providing the easy to understand step-by-step video guides – without our how-to guides you will struggle to know which offers to do and how to do them, without this information (and our customer support if you get stuck), you could lose money.


Our dedicated support staff are on hand to help you out and keep the profits flowing. Mistakes in the process can happen too and sometimes you might need a bit of advice on what to do. 

Our working hours are 8am to 8pm EST, Monday to Sunday.



*DISCLAIMER: We're legally required to state that there is no guarantee of specific results each month. The amount of money that you earn can vary dependant on the time and effort that you commit each month.