# Odds Calculator

## Odds and Probabilities: Odds Formats and Implied Probability

There are three main odds representations used by most bookmakers and betting websites. Let’s run through some examples of **Decimal odds, Fractional Odds and American Odds**:

**Fractional Odds**- This odds format is used primarily in the United Kingdom & Republic of Ireland. Fractional odds quote the potential
**profit**which can be made on a bet if it wins, relative to the stake. *For example if $500 is bet at odds of 2/1 the potential profit is $1000 ($500 * 2) and the total returned is $1500 ($1000 plus the $500 stake).***Decimal Odds**- Decimal betting odds reflect the potential
**return**if a bet succeeds, relative to the stake placed. *For example if £$ is bet at odds of 3.0 the total returned is $15 ($5 * 3)- and the potential profit is £10 ($5 * 3 minus the initial $5 stake).***American Odds**-
- Positive American Odds: These odds reflect how much you win on a single $100 bet.
*For example, a positive American odds @ +110 would win $110 for a $100 wager.* - Negative American Odds: The odds indicate how much you must bet in order to make $100 profit. For example a wager on a team with American odds of -90 would win $100 on a $90 bet.

- Positive American Odds: These odds reflect how much you win on a single $100 bet.
**Implied Probability**- Odds correlate to probability e.g a 2/1 bet is expected to win twice in every 3 attempts, hence the probability is 33.33%.