There are three types of odds. We-The Europeans are very familiar to Decimal (i.e, @2.05). And some of us are familiar to Fractional or USA. Some bookmakers offer USA odds and do not offer its converted type into Decimal. As a result of it, it becomes very hard work to calculate them and some of us can understand what +110 means as Decimal while he is preparing his coupon. Here we try to examine the calculation of each conversion. It is a bit long but give it a chance.

## Decimal Odds

(1.20, 2.30, 10.00, etc.)

People are familiar to Decimal more than the others. Lets examine a sample to understand better. *Say a bookmaker offers @2.30 for a team to win the game and you bet 100$ on that team at @2.30. If that team wins the game, you get 230$ (including the stake) back. Your profit is 230$ – 100$ = 130$.

## US Odds

(+100, -135, +300, etc.)

The ones who bet on US Sports are familiar to these. There are two types of US odds such as positive and negative. The mentalities are different.

Positive:

Positive odds may have plus (+) in front of the numbers (such as +100, +135, +300, etc). Suppose a bookmaker offers +150 for a team to win the game and you bet 100$ on it. If the team wins, you will get 250$ including your stake. Here the mentality is:

Stake 100$ to make 150 profit + 100$ stake back or Stake 100$ to make (positive number)$ profit + 100$ stake back

Formula:

Decimal = (Positive US + 100) / 100

Lets calculate the example above; we staked 100$ to win at +150.

( 150 + 100 ) / 100 = 2.50

Negative:

Negative odds always have minus (-) in front of the number. Suppose a bookmaker offers -120 for a team to win the game. Here, the mentality is the exact opposite. The mentality is:

Stake 120$ to make 100$ profit + 120$ stake back or Stake (negative number)$ to make 100$ profit + negative number)$ stake back

Formula:

Decimal = (Negative US + 100) / Negative US

Lets calculate the example above; we staked 100$ on the team.

Here we ignore the minus (-).

( 120 + 100 ) / 120 = 1.83

## Fractional Odds

(5/4, 12/7, 7, etc.)

This is also known as UK Odds. It is too easy to understand and calculate. The mentality is:

Profit/Stake

For example, a bookie offers 5/4 for a team to win a game. Stake 5x to make 4x profit and 5x stake back. Say you bet 100$ on the team to win at 5/4. It means if the team wins, you will have 225$ including the stake. Take a look at the formula below:

Formula: (First Number + Second Number) / Second number

Lets calculate the example above; we staked 100$ on the team.

(5+4)/4=2.25

As a result, you will get 225$ back for your 100$ stake..

If you see only one number as fractional (like 2, 5, 12, etc.), add 1 into the number and you will have the offer.

For example, a bookie offers 4 for a team to win a game. It means stake 1x to make 4x profit. If you put 100$ on the team and the team you bet wins, you get 500$ back.

4+1=5.00

As a result of, you will get 500$ back for your 100$ stake.