Odds Converter Calculator

Quickly calculate and convert your odds from any of the three most popular formats, and get the implied probability!

Get Started

How to Use the Odds Converter?

  1. 1. Enter a value: Type a value into any one field — Fractional, Decimal, American, or Implied Probability.

  2. 2. Automatic conversion: As soon as you type, all other fields update instantly.

  3. 3. Accepted formats:
    • Fractional: Enter as numerator/denominator (e.g., 5/2)
    • Decimal: Must be 1.00 or higher
    • American: Use + or – signs (e.g., +250, -150)
    • Probability: Enter a percentage between 0–100

  4. 4. Clear inputs: Delete any entry to reset and start again.

  5. 5. Instant calculations: Every change updates all formats so you can compare odds immediately.

Calculate & Maximize Your Winnings with the MadMarket Odds Calculator

All bettors want to play smarter and maximise their earnings from sports betting. Using a bet calculator is the first step towards understanding and improving your betting knowledge.

Unlike common belief, this is not simply an odds converter calculator. It's much more than this.

The tool will allow bettors not just to compare odds of different formats but also to check the implied probability of a betting slip, the potential outcome, and the risk involved.

Although there are versions that focus on specific sports, e.g. the horse racing odds calculator, learning how the basic version works will already make you a better player.

Arbitrage Calculator

The Essential Role of the MadMarket Odds Calculator in Smart Betting

Bet calculator odds tools are available everywhere these days. Even on bookmakers’ websites or on sports betting exchanges. Why? Simply because they are not winning bets for players, but help them create a better overall experience on the betting site. 

 

MadMarket features a simple version of the odds calculator betting tool. It performs two simple yet very essential actions: 

  • Converts odds to different formats used worldwide
  • Projects the implied probability of these odds

 

The odds converter calculator function is required, for example, if you read betting tips on a British website but your bookmaker doesn’t offer fractional odds. In that scenario, you will need the bet odds calculator to understand the value offered by the bookmakers. 

 

Understanding the implied probability of these odds is also crucial, as it reflects the traders’ or players’ forecast of a specific outcome fairly accurately.

Unlock Key Advantages: Top Benefits of Using This Calculator

The bet odds calculator won't guarantee profits.

It will, however, help players become more aware of the trader's view on potential outcomes and adjust their strategy accordingly.

The calculator can also help those who bet on websites that don't offer different odds formats.

Some Asian handicap bookmakers offer American or fractional odds.

The most advanced versions can help test multiple scenarios on single bets and accumulators before placing a bet.

Very useful for players who practice bankroll management and employ smart betting strategies.

Step-by-Step Guide: How to Use the MadMarket Odds Calculator on Edge

Many players still don't understand what the odds calculator tools are. Or how they work.

Although there are both simple versions (such as the football odds calculators) and more advanced mechanisms (e.g. the Asian Handicap Calculator), its core function is the same, and can be summarised below:

  • The odds converter calculator enables players to input odds in any format (decimal, fractional, or American) and instantly view the other two formats.
  • The implied probability element translates the odds values into actual probability percentages, reflecting the bookmaker's expectation of a specific event and outcome.

Several versions also include the betting stake and potential outcome, but the MadMarket Odds Calculator focuses on the core functions described above.

Top-Rated Sportsbooks: Where to Place Your Calculated Bets

Although there are thousands of great betting sites out there, there are a few that stand out for the great odds, the detailed statistics, and the fantastic UX they offer. These are three players’ favourites for you to try:

    1. 1. Sharp Exchange: 20+ sports, a very carefully built page with tons of betting markets, great odds, and an educational portal that will explain exchange betting even to beginners.

 

    1. 2. Edge: pre-game and in-play betting on all major sports, specialising in 1X2, Asian Handicap, and Asian Total Goals. Odds available from 10+ bookies and exchanges in one single platform.

 

  1. 3. Probet42: If you search for a place that combines regular and Asian Handicap betting, then look no further. Probet42 focuses on 1X2, Handicap odds, Parlays, Outrights, and tons of specials.

 

FAQs

Here are some frequently asked questions regarding an odds calculator.

There are tons of free bet odds calculator tools out there. A simple Google search will return results that are hosted either on betting sites such as MadMarket.

It really depends. If you are good at maths, then you can understand various odds formats and implied probabilities. However, it makes sense to double-check these numbers with a tool that is based on an algorithm that cannot fail the calculation.

Most calculators, including the MadMarket Calculator, support conversions between decimal, fractional, and American odds. There are also some other, more exotic versions, e.g Hong Kong and Indonesian odds, but finding an odds converter calculator for those might prove tricky.

No, odds calculators can't guarantee betting profits. They can, however, improve your game and increase your winning chances by helping with understanding the implied probabilities of the odds.

Yes, most calculators convert Decimal, Fractional and American odds as these are the most common and recognised globally.