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Best Betting Sites UK / Betting Calculators 2025 / Moneyline Calculator 2025

Moneyline Calculator 2025: Calculate Your Bets

Last Updated on 15/03/2025
Fact checked by: James Leeland

Moneyline Calculator: Calculate The Odds for Your Moneyline Bet

Moneyline betting is probably the most recognisable when it comes to sports betting. The online moneyline sports betting calculator is a tool that has been designed to convert odds into different formats and to also calculate the implied probability of that win being successful.

Moneyline calculator

Odds Type


Using this moneyline betting calculator takes away any stress of manually calculating and converting your preferred choice of odds into a different format. It doesn’t really matter what odds format you use as it all ends in the same outcome with the implied probability and potential returns.

What Is A Moneyline Calculator And Its Purpose Of Use?

Moneyline betting is probably the most straightforward format in the world of sports betting. Essentially, you are backing a certain team or player to win the game or tournament.

Our moneyline sports betting calculator allows you to input your selected odds and the calculator will automatically convert them into a number of different odds formats - this will be explained in detail later on.

As well as the different odds, the moneyline betting calculator will also show the punter the implied probability of that bet being successful. The bet amount on the moneyline calculator is set at 100, but you can change that to whatever amount you wish to stake.

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Understanding Different Betting Odds

When you start using our moneyline calculator you will see six separate sections containing different types of odds. It is down to the preference of the bettor which format they use, but it is nice to have a choice.

This type of online betting calculator allows you to see what the odds and prices are of your selected bet, but do you fully understand how they work? Below is an explanation on all the odds types you will find in our moneyline betting calculator.

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Fractional Odds

Fractional odds are a popular choice for bettors in the UK as they are very easy to understand. You have two numbers, and the second number is what you need to stake to win the first amount. If you have odds of 5/2, for every £2 you stake you will receive £5 if the bet is successful. So, if you use the default setting of £100 you would take away £250 plus your original stake.

Decimal Odds

Using decimal odds is becoming more and more popular in sports betting, especially outside the UK, with bettors preferring this option online. It is important to note that no bet will ever be less than one no matter how short the price is.

American Odds

American odds are set up and displayed differently to most formats. They are represented by a negative and positive symbol. Teams or players who have a minus against their name are the odds-on favourites, while the positive symbol indicates they are the odds against underdogs.

Hong Kong Odds

Hong Kong odds are easy to understand. If the betting odds are a decimal lower than one then they are classed as the favourites. For any odds above one, you will receive that amount for every one staked.

Indonesian Odds

Indonesian odds are very popular in Indonesia and are similar to American odds, they are the same odds divided by 100. If you were using American odds you could have +115, while the Indonesian way is to divide that by 100 and end up with 1.15.

Malay Odds

Malay odds are also known as Malaysian odds. Malay odds use zero as a base and any positive numbers represent the favourites with the negative numbers highlighting the underdogs.

Main Purpose Of Our Moneyline Betting Calculator

The main purpose of a moneyline betting calculator is to make life easier for the bettor. It does this by calculating the implied probability of that bet being a success as well as the potential payout you would receive if that was to happen.

Having the option of seeing the implied probability of your bet is vital with our moneyline betting calculator. Having a percentage set out in front of you helps you to compare different prices and the find the right option for you and your bet.

There are ways of calculating the different odds, for example you can work out how to convert decimal odds to American odds or American odds to fractional odds. To do that manually is very time consuming, so using a moneyline betting calculator cuts out the middleman and takes away a lot of stress.

What Is Implied Probability?

When you use the moneyline calculator it will calculate the implied probability of those odds being involved in a successful bet. It does not matter what type of odds you use as the probability will be the same, but what is implied probability?

Implied probability refers to the likelihood of a betting selection being a winner in relation to the odds. To manually calculate implied probability you would need to use a mathematical formula that converts betting odds into a percentage.

Calculating Implied Probability

Using a moneyline betting calculator is the best way to find out your implied probability, but it doesn’t hurt to fully understand how the calculations work. Below I will show you the formulas for decimal odds, fractional odds and Americans odds just so you know how it all works.

Odds TypeFormula
Decimal Odds(1/decimal odds) x 100 = implied probability
Fractional OddsDenominator / (denominator + numerator) x 100 = implied probability
Negative American OddsNegative Odds / (Negative Odds + 100) x 100 = implied probability
Positive American Odds 100 / (Positive Odds +100) x 100 = implied probability

Using Implied Probability As A Betting Strategy

Understanding how implied probability works is important as it can be implemented into your betting strategy. Looking at the odds you have chosen you can get a grasp of what the chances of that bet coming in are, but having the actual percentage puts your bet into context.

You can split your bet into tiers with the probability helping you make a decision:

StatusMoneyline Odds Implied Probability
Heavy Favourite

1.5066%
Clear Favourite1.6660%
Slight Favourite1.8354.5%
Coin-Toss Decision1.9950.25%
Heavy Favourite4/1173.33%
Clear Favourite2/571.43%
Heavy Underdog14/16.67%
Clear Underdog11/215.38%
Coin-Toss Decision10/1152.38%

How To Use Our Moneyline Betting Calculator

Using our moneyline betting calculator is as straightforward as placing a moneyline bet. When you first look at the calculator it is obvious what you need to do, but it always helps to get some advice.

Here is a brief step-by-step guide on how to use the moneyline calculator. After familiarising yourself with the moneyline sports betting calculator, have a go yourself before placing an actual bet.

  1. Open up our moneyline betting calculator
  2. Input your desired stake amount (it is 100 by default)
  3. Type in your odds into your preferred box (fractional, decimal etc) from the best UK bookmakers
  4. Press Calculate
  5. The calculator will show you all the odds for different formats
  6. At the bottom it will have the implied probability and the potential payout you will receive

Here Is Our Moneyline Betting Calculator

Here is our moneyline calculator that has been designed to help you understand the odds and prices of other betting formats as well as calculating the implied probability and potential payout of your bet.

Have a good look at the moneyline calculator and become familiar with how it works before using it for real.

Moneyline calculator

Odds Type


Top bookies for your next moneyline bet

Other Calculators We Offer 

Tricast Calculator

Horse racing is a popular sport when it comes to tricast betting. The bettor will usually select three horses in one race and predict their overall standings. The tricast calculator will show you a breakdown of the odds and what potential payout you may receive.

Dutching Calculator

The dutching calculator will automatically calculate the odds you have selected in a bet ithat includes one or more outcomes on the same game when using separate bookmakers.

Accumulator Calculator

An accumulator is one bet with several selections included. The accumulator calculator will calculate all the odds of the individual bets before releasing one overall bet.

Asian Handicap Calculator

Asian handicaps see teams handed a virtual advantage before the game or tournament has started. The Asian handicap calculator is a tool designed to automatically figure out any potential profits from your selections. will work out any potential profits from your selections.

Kelly Criterion Calculator

The Kelly Criterion is a mathematical formula that allows punters to work out the amount they should stake if there is a clear difference between the true odds and the odds shown by bookmakers. The Kelly Criterion calculator will provide the bettor with what percentage of their bankroll is needed to maximise any profit.

Parlay Calculator

Parlays work very similarly to the way an accumulator operates. The main difference is these are used mainly in American sports. The parlay calculator combines several individual bets into one large bet.

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Moneyline Calculator Takes Away Probability Stress

One thing online betting calculators bring to the table is the opportunity to take away stressful, manual calculations that could leave you even more confused.

Having a calculator that automatically calculates what the implied probability is of the bet being a winner is a great addition. It just gives you piece of mind that you are on the right track with your bet and takes away any guesswork.

Boost Your Moneyline Bets With These Top Bonuses!

Moneyline Betting Calculator FAQ

💷 What Is Moneyline Betting?

A moneyline bet is just a regular bet where you back a team to win a match or a single player to win a tournament.

🧮 Why Should I Use a Moneyline Betting Calculator?

This specific calculator is crucial if you want to know the implied probability of your bet and the exact amount you could potentially win. It will calculate it all in one go.

❓ What Is Implied Probability?

This is when the odds of your bet are converted into the probability of that bet being successful. This system would normally require a complicated formula but the moneyline calculator does all the work for you.

Yes, using a betting calculator is legal. It is a tool designed to help you work calculations out rather than trying to beat the betting system.

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