Decimal ↔ Fractional Odds

Calculate Decimal ↔ Fractional Odds instantly with the exact formula and a worked example.

Decimal ↔ Fractional Odds

Decimal odds
Fractional (a/b)
1.5
1,5/1Calculate Decimal ↔ Fractional Odds instantly with the exact formula and a worked example.

More about: Decimal ↔ Fractional Odds

What it calculates

The “Decimal ↔ Fractional Odds” calculator computes Fractional (a/b) from 1 parameter: decimal odds.

Calculations for sports statistics, games, and training.

Example calculation

With parameters Decimal odds = 2.5 the result is 1.5 (1,5/1).

How to use

  1. Enter decimal odds — each field above is adjustable with a slider.
  2. Fractional (a/b) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Decimal ↔ Fractional Odds calculated?
The Decimal ↔ Fractional Odds calculator computes Fractional (a/b) from decimal odds. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Decimal ↔ Fractional Odds calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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