Odds converter

Fractions, decimals or American odds. Turned into money.

Type a price in any format and see it in the other two, the chance it implies and exactly what your stake gets back. Because "£10 gets back £35" is easier than 5/2.

£10 gets back £35.00
£25.00 profit if it wins
£10.00 lost if it loses
28.6% implied chance
5/2 nearest bookmaker price

Some prices round slightly differently between bookmakers. The implied chance includes the bookmaker's margin, so it is not a forecast. 18+. Please gamble responsibly.

How it works

The maths, in plain English.

How do I convert fractional odds to decimal?

Divide the first number by the second and add 1. 5/2 is 2.5, plus 1, so 3.50. 1/2 is 0.5, plus 1, so 1.50.

How do I convert decimal odds to American odds?

If the decimal is 2.00 or more, take away 1 and multiply by 100, so 3.50 becomes +250. If it is under 2.00, take 1 away from the decimal, divide 100 by the result and put a minus sign in front, so 1.50 becomes -200.

How do I convert American odds to decimal?

For a plus price, divide by 100 and add 1, so +250 becomes 3.50. For a minus price, divide 100 by the number without the minus sign and add 1, so -200 becomes 1.50.

What does the implied chance mean?

It is the chance the price suggests, worked out as 100 divided by the decimal odds. 3.50 implies about 28.6%. Bookmakers build a margin into their prices, so the chances across a whole market add up to more than 100%.

Does the return include my stake?

Yes. The return is everything that comes back if the bet wins, including your stake. Profit is the return minus the stake.

See the full odds ladder The betting dictionary