BETTING TOOL IRELAND
Odds Converter
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Convert decimal odds to fractional odds and implied probability.
This converter turns decimal odds into an equivalent fractional price and implied probability. The calculation helps compare formats; it does not account for bookmaker margin or predict an event.
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Explore WinsharkFractional: 3/2 Implied probability: 40.00%
How to use this tool
For decimal odds d, implied probability is 100 ÷ d. Fractional odds are represented by (d − 1) to 1 and can be simplified. Use the format shown on the event page when checking a selection, and remember that settlement terms come from the market itself.

What to check
- Enter decimal odds greater than 1
- Compare the converted formats
- Use the event page for market terms
Divide 1 by decimal odds and multiply by 100; the result is a raw implied percentage before margin.


