Odds converter

Their are 3 diffrent odds systems used in diffrent part of the world.

Fractional odds (like 1/4) is mostly used in the UK.
US Odds (like -230) is mostly used in the US.
Decimal odds (like 2.5) is the most common odds system in the world.

Example:

Decimal odds 2,0 is the same as fractional 1/1 and US +100.

Their is a lot of easy tools to convert odds between the systems. You can find a odds converter here.