If you are accustomed to using Decimal odds (e.g., 2.50) but want to bet on UK Horse Racing, you will often find that the prices are displayed as fractions (e.g., 6/4). While decimals tell you the total return, fractions tell you the profit ratio.
Use this converter to translate decimal prices back into the traditional fractional format used at British racecourses and high-street bookmakers.
Decimal to Fractional
How to Use the Calculator
This tool finds the simplest fraction for your decimal odds:
- Enter Decimal Odds: Input the value (e.g., 1.50 or 3.75).
- View Fraction: The tool will calculate the profit ratio (e.g., 1.50 becomes 1/2).
- Understanding the Result: The fraction shows [Profit] / [Stake]. A result of 1/2 means for every £2 you bet, you win £1 profit.
Why is this conversion difficult?
Converting decimals to fractions isn’t always clean. For example, a decimal of 1.95 doesn’t have a standard “clean” fraction (it’s mathematically 19/20, but bookies might display it as 10/11 depending on their margins). Our calculator finds the mathematically correct fraction based on the implied profit.
Frequently Asked Questions (FAQ)
How do I calculate the fraction manually?
First, subtract 1 from the decimal to get the profit (e.g., 3.50 – 1 = 2.5). Then, convert that number into a fraction. 2.5 is two-and-a-half, which is written as 5/2.
What is 1.50 in fractional odds?
Decimal 1.50 converts to 1/2. This is often called “half-money.” If you bet £10, you get your £10 back plus £5 profit.
Why do decimals sometimes look weird when converted?
Betting exchanges like Betfair use precise decimals (e.g., 2.38) that don’t map to standard industry fractions (like 11/8 or 6/4). In these cases, the calculator will give you the precise mathematical fraction (e.g., 69/50), which gives you the exact payout ratio.