# Odds Converter

There are 3 formats of stating odds that most bookmakers and websites support: Fractional, Decimal and American format.

## Fractional format

Fractional format is used mostly in the UK and Ireland. Fractions state the potential profit should the bet succeed, relative to the stake. For example if €5 is bet at odds of 2/1 the potential profit is €10 (€5 * 2) and the total returned is €15 (€10 plus the €5 stake).

## Decimal format

Decimals state the potential return should the bet succeed, relative to the stake. For example if €5 is bet at odds of 3 the total returned is €15 (€5 * 3) the potential profit is €10 (€5 * 3 minus the €5 stake).

## American format

Positive figures: The odds state the winnings on a €100 bet e.g. american odds of 110 would win €110 on a €100 bet. Negative figures: The odds state how much must be bet to win €100 profit e.g. american odds of -120 would win €100 on a €120 bet.

##### Odds Converter
Fractional format
Decimal format
American format
Implied Probability

## Conversion

### American to decimal odds

If american odds are positive: 1 plus (american odds divided by 100) e.g. american odds of 300 = 1 + (300/100) = 4. If american odds are negative: 1 minus (100 divided by the american odds) e.g. american odds of -300 = 1 - (100/-300) = 1.333.

### American to fractional odds

If american odds are positive: The american odds dividend by 100 e.g. american odds of 300 = 300/100 = 3/1. If american odds are negative: Minus 100 divided by the american odds e.g. american odds of -300 = -100/-300 = 1/3.

### Fractional to decimal odds

Add 1 to the fractional representation e.g. a fractional value of 3/1 = (3/1) + 1 = 4.

### Fractional to american odds

If fraction is >= 1: The fractional value multiplied by 100 e.g. a fractional odds of 3/1 = (3/1) * 100 = 300. If fraction is < 1: Negative 100 divided by the fractional odds e.g. a fractional value of 1/5 = -100 / (1/5) = -500.

### Decimal to fractional odds

Subtract 1 from the decimal representation e.g. a decimal value of 3 = 3 - 1 = 2 which is commonly expressed as 2/1.

### Decimal to american odds

If decimal odds are >= 2: The decimal value minus one multiplied by 100 e.g. a decimal value of 3 = (3 - 1) * 100 = 200. If decimal odds are < 2: Negative 100 divided by (the decimal odds minus one) e.g. a decimal value of 1.2 = -100 / (1.2 - 1) = -500.