Calculator Use

Convert stated odds to a decimal value of probability and a percentage value of winning and losing. This calculator will convert 'odds for winning' an event or 'odds against winning' an event into percentage chances of both winning and losing.

Be careful if you are using sports teams odds or betting odds. If you see that the Patriots super bowl odds are 9/2, that is most likely 'odds against' and should be entered in the calculator with 'Odds are: against winning.'

When playing a lottery or other games of chance be sure you understand the odds or probability that is reported by the game organizer. A 1 in 500 chance of winning, or probability of winning, is entered into this calculator as '1 to 500 Odds are for winning'. You may also see odds reported simply as chance of winning as 500:1. This most likely means '500 to 1 Odds are against winning' which is exactly the same as '1 to 500 Odds are for winning.'

Probability Formulas:

This calculator will convert 'odds of winning' for an event into a probability percentage chance of success.

Odds, are given as (chances for success) : (chances against success) or vice versa.

Convert Decimal to Fractional. Decimal = Fractional + 1. You can try it in the calculator above. There are two kind: +Positive(Underdog team) And Negative(favorite team), and the ratio is based on a stack of 100 units. If the odds are positive +250. Types of Betting Odds. Betting odds offered by UK bookmakers can be displayed in three distinct ways. Fractional, Decimal and Moneyline also known as American odds. European odds conversion. The most common odds format for European bookmakers is decimal, where a price such as 4.00 represents the equivalent of the 3/1 fractional price. How to Work Out Implied Probability From Decimal Odds. Divide 1 by the decimal, and multiply it by 100%. Equation: (1/ decimal odds). 100 = implied probability Example: 1 /4.00. 100 = 25% Find other bet calculators and interesting offers, like the bet365 bonus code, on mybettingsites.co.uk. FAQ – Frequently Asked Questions about Odds Converting. Negative american odds - Negative 100 divided by (the decimal odds minus one) e.g. A decimal value of 1.2 = -100 / (1.2 - 1) = -500. Also See Betting Calculator - Enter your odds and stake to calculate bet returns for all types of sport wager. To convert decimal odds to fractional odds, you need to do the reverse. This means positioning the decimal number as the numerator and 1 as the denominator. You then multiply the top and bottom numbers by ten until there are no decimal places left. For example, to convert odds of 1.4, you do the following: 1.4 – 1 = 0.4.

If odds are stated as an A to B chance of winning then the probability of winning is given as P_W = A / (A + B) while the probability of losing is given as P_L = B / (A + B).

For example, you win a game if you pull an ace out of a full deck of 52 cards. Pulling any other card you lose. The chance of winning is 4 out of 52, while the chance against winning is 48 out of 52 (52-4=48). Entering A=4 and B=48 into the calculator as 4:48 odds are for winning you get

For 4 to 48 odds for winning;
Probability of:
Winning = (0.0769) or 7.6923%
Losing = (0.9231) or 92.3077%
'Odds for' winning: 1:12 (reduced from 4:48)
'Odds against' winning: 12:1 (reduced from 48:4)

Further Reading

Fractional Odds

What is Fractional odds ? This is a common line from Britain

Profit ----➔ 6/5 🠰 ---- Stack

How to convert ?

Stack X Odds + Stack = Return

Convert Decimal to Fractional

Decimal = Fractional + 1

1.40 = 2/5 + 1

1.40 = 0.4 + 1

You can try it in the calculator above

American Odds

There are two kind:
+Positive(Underdog team) And Negative(favorite team), and the ratio is based on a stack of 100 units.

If the odds are positive +250
it say if you put 100$ you will get 250

If the odds are negative -150
it say you must risk 150$ to win 100$

1.40 = 0.4 + 1

Converting from Decimal to American

If the odds are 2.00 or more:

American Odds = (Decimal -1) X 100

If the odds are Less then 2.00:

American Odds = (-100)/(Decimal -1)

Convert from American to Decimal

If the odds are Positive ,Just divide US odds by 100 and add 1

Decimal = (Us odds / 100) + 1

If the odds are Negative

Decimal = (100/ Us odds) + 1

4 1 In Decimal Odds Calculator

13 1 4 Decimal

How To Decimal Odds Work

The benefits of using the best betting odds calculator

How can a betting odds calculator help out when punters are looking around at sporting betting odds? At Houdini Predictions there are a lot of free predictions that are on offer. Each of the high-quality football betting predictions that are offered is presented with current odds. But as a punter, you may want to see how those odds are presented in different formats. An online betting calculator can help to make those conversions quick and easy.

The Houdini Betting Odds Calculator

The football betting calculator at Houdini Predictions makes the conversion of odds to different formats a quick and simple process. Why would a punter want to convert odds? It is all a matter of preference really. A lot of UK betting markets are presented in the fractional format. Punters based on continental Europe are going to be more familiar with the decimal format. Then there is American / Moneyline format which may well be completely unfamiliar to any European bettors at all. Being able to switch between the different types of formats can be a handy tool to have on your side to put all odds into your own familiar format. So Houdini Predictions have tools available like the online betting odds calculator to help punters along.

How to convert odds with the betting odds calculator

The football betting calculator can just help to clear up some confusion over how odds may be presented. It’s not an uncommon thing to be browsing around online and to then find a betting opportunity you fancy but the odds are presented in a totally different format. Maybe as a UK punter, you wanted to expand your horizons and look at having a wager on the NFL Super Bowl but have no idea what a +250 Moneyline wager is. All that you would need to do to clear up any of that confusion would be to put the odds quote into the bet calculator. Then that one quote will be converted into the other odds format that are available in the calculator. That includes Decimal and Fractional, along with the Hong Kong and Indoneison formats. To convert odds with the betting odds calculator, you simply enter the odds quoted in the relevant box in the calculator and click the Convert button. All the work is done for you from that point on.

What Do The Odds 4/1 Mean

The Houdini Predictions does the heavy lifting

Everything to do with betting, of course, involves mathematics. An example of that is the implied probability of outcomes which the odds represent. If you convert between Decimal and Fractional or any other format, that probability doesn’t change what you are looking at. Some mathematical operations can be a slow process to figure out. It’s not so easy to convert decimal odds of 2.54 into a fractional return. But the online betting calculator at Houdini Predictions gives you results quickly. The bet calculator is not figuring out how much potential profit that you could collect from those odds, because that’s an entirely different thing. Stake and risk would come into play in that example, but the Houdini Bet Calculator is an odds conversion tool. But with that having been said, if you calculate and see odds presented in your familiar format, then you may have a clear picture in your head of the actual value of those odds in terms of potential profit.

1 4' In Decimal Form

Quick conversion results with the betting odds calculator

1 4 Cup In Decimal

It’s worth noting that along with daily free football betting tips, there are also live football betting tips that are available at Houdini Predictions. Online betting is a really fluid thing and sometimes, especially when looking at live in-play betting, conversions may need to be done quickly. At the end of the day, a football betting calculator will help speed up any process in which you find the need for an odds-conversion. So the package is all here at Houdini, the high-quality picks and the football betting calculator that can help manage the odds.