Fractional odds (e.g., 5/2 or 10/1) are the traditional format for sports betting in the UK and Ireland. While they are great for calculating profit, they can be confusing when trying to compare prices quickly or calculate parlay returns.
Decimal Odds make life easier by representing the Total Return (Stake + Profit) as a single number. Use the calculator below to convert traditional fractions into the modern decimal format.
Fractional to Decimal
How to Use the Calculator
Converting fractions is a simple two-step mathematical process. Our tool does it instantly:
- Enter Fractional Odds: Type the fraction exactly as seen on the bookmaker site (e.g., 9/4). You can also enter whole numbers for “X to 1” shots (e.g., enter 10 for 10/1).
- Get Decimal Result: The tool converts it immediately (e.g., 9/4 becomes 3.25).
- Calculate Return: Multiply your stake by this decimal number to see exactly how much money will return to your pocket if you win.
The Conversion Formula
To convert manually, simply divide the top number (numerator) by the bottom number (denominator) and add 1.
- Example (5/2): (5 ÷ 2) = 2.50 Profit. Add 1 for the stake = 3.50 Decimal.
- Example (Evens or 1/1): (1 ÷ 1) = 1.00 Profit. Add 1 for the stake = 2.00 Decimal.
Frequently Asked Questions (FAQ)
Why are decimal odds better than fractional?
Decimals are generally considered superior for two reasons: 1) They make it easier to compare prices (is 4/7 better than 8/13? It’s hard to tell, but 1.57 vs 1.61 is obvious). 2) They are required for betting exchanges where prices move in small increments.
What is “Odds On” in decimal format?
“Odds On” means the fraction is less than 1 (e.g., 1/2 or 4/6), indicating a heavy favorite. In decimal format, any number below 2.00 is considered Odds On.
How do I calculate profit from decimal odds?
Since decimal odds include your stake, simply subtract 1 from the decimal odds to find the “Profit Multiplier.” For example, odds of 4.50 mean you make 3.5 units of profit per 1 unit staked.