BETTING TOOL IRELAND

Odds Converter

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Convert decimal odds to fractional odds and implied probability.

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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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Fractional: 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.

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What to check

  1. Enter decimal odds greater than 1
  2. Compare the converted formats
  3. Use the event page for market terms
What is implied probability from decimal odds?

Divide 1 by decimal odds and multiply by 100; the result is a raw implied percentage before margin.

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