Odds Converter: Decimal, Fractional and American
Converts a price from one odds format to the others.
Decimal odds
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Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Fractional odds —
American odds —
Implied probability — %
Return if it wins, including stake —
Profit if it wins —
Reading this —
The formula
decimal = 1 + fraction decimal = 1 + A ÷ 100 for +A decimal = 1 + 100 ÷ A for −A implied probability = 1 ÷ decimal
Decimal odds include the stake. Fractional and American odds show the profit only.
What to watch out for
Some decimal prices have no tidy fraction, so the nearest one is marked ≈. A number with no sign is read as decimal, so write American odds with their + or −.
Frequently Asked Questions
What is 5/2 in decimal and American?
3.50 and +250.
What is −110 in decimal?
1.909, or 10/11 as a fraction.
What does evens mean?
Decimal 2.00, fractional 1/1 and American +100. A win doubles the stake.