Free odds tools
Implied probability calculator
Choose an odds format, enter a price and see the chance represented by that price.
Price
Implied probability
Decimal oddsNot available
Prices on this page can be prefilled from the OddsLink API.
Bring live prices into your workflow.
Use the OddsLink API to get prices from the books you follow in one response shape.
Frequently asked questions
What does implied probability show?
It shows the chance represented by a price before the market margin is removed.
Is -100 even money?
Yes. Both -100 and +100 are decimal 2.00 and imply a 50 percent chance.
Why do two sides add above 100 percent?
A two-way market normally includes a built-in margin, so the implied chances can total more than 100 percent.
Can I enter decimal odds?
Yes. Choose European odds and enter a decimal value such as 1.91.
Does this estimate a true chance?
No. It converts the listed price. Use the no-vig calculator to adjust a whole market.