CALCULATOR

Odds Converter

Use this tool to translate between two common ways of writing the same price. It converts the numbers you enter; it does not compare bookmakers or recommend a selection.

A Kenyan football supporter checking generic odds on a phone while watching a match — Illustration for this learning tool; it does not represent live odds or a recommendation.

Enter values

Use decimal odds unless a field says otherwise. Values are processed locally in this browser and are not saved.

Enter values and select Calculate. The result is an arithmetic illustration only.

Calculators do not predict match outcomes or estimate the chance of winning a particular bet. Check the relevant market rules and use figures only as an educational illustration.

Formula

Fractional profit odds = decimal odds − 1. Decimal odds = (numerator ÷ denominator) + 1.

Example

Decimal odds of 3.50 equal fractional odds of 5/2: a KES 100 stake would return KES 350 gross if successful, including the original stake.

What this result tells you

The equivalent fractional and decimal price for the value entered.
Fractional odds describe profit relative to stake; decimal odds include stake in the displayed return.

What it leaves out

It does not account for a bookmaker changing the price, deductions, dead heats, void legs or market rules.
An equivalent price is not a forecast of the event.

Common errors

Entering decimal odds of 1.00 or lower.
Reversing the numerator and denominator.
Treating fractional profit as the total returned amount.