By convention only a set of fractions are used in fractional odds betting markets. The set does not include exact mathematical equivalents to all possible decimal and American odds. We use the closet fraction that is used in betting markets.

For example, the exact mathematical equivalent of decimal odds 30 is fractional odds 29/1. However 29/1 is not used in betting markets, instead 30/1 is used, so that is what appears in this converter.

For an explanation of the odds types on this table see decimal, fractional and American odds. To find out what the numbers really represent see understand odds as probability with overround.

Feb 28, 2021 Fractional odds (aka British odds, UK odds, or traditional odds) are popular among British and Irish bookies. These are typically written with a “slash (/)” or a “hyphen (-),” e.g.

Fractional Odds To Decimal

Fractional Odds Calculator

Fractional Odds To Decimal Table

• By convention only a set of fractions are used in fractional odds betting markets. The set does not include exact mathematical equivalents to all possible decimal and American odds. We use the closet fraction that is used in betting markets. For example, the exact mathematical equivalent of decimal odds 30 is fractional odds 29/1.
• Fractional odds are also known as traditional or British What are Decimal Odds? Common around the world but especially in Europe. Standard on betting exchanges such as Betfair.
• Bookmakers do not think in fractional or decimal prices, they think solely in percentages and adjust their fractional/decimal odds accordingly to remain over-round. There will be occasions when they may fleetingly go under 100%, this is rare, and is done simply to attract money to the market, this is the exact opposite to over-round, and is.