Skip to content
Odds Scout

Odds Converter

Convert odds between different formats. Enter odds in any format and see the equivalent in all other formats.

%
How to read odds: Decimal odds show your total return for every $1 wagered. American odds show how much you win (+) or need to bet (-) to win $100. Fractional odds show profit relative to stake. Probability shows the implied chance of the outcome occurring.

Frequently Asked Questions

How do I convert American odds to decimal?

For positive American odds, decimal = (odds / 100) + 1, so +150 becomes 2.50. For negative odds, decimal = (100 / absolute value of odds) + 1, so -200 becomes 1.50. This converter does it instantly.

What is implied probability?

Implied probability is the win chance an odds price reflects. From decimal odds it is 1 divided by the decimal, so 2.00 implies 50%. Comparing implied probability across books shows where the value is.

What is the difference between decimal, fractional and American odds?

They express the same price differently. Decimal shows total return per $1 staked, fractional (UK) shows profit relative to stake, and American shows profit on a $100 bet (positive) or the stake needed to win $100 (negative).

Which odds format is best?

They are mathematically identical, so use whichever is clearest to you. Decimal is usually easiest for comparing value and calculating payouts.

More tools: EV Calculator · Kelly Calculator · Free Bet Calculator · Parlay Calculator · Arbitrage Calculator · Compare Odds