Fractional vs Decimal Odds: What’s the Difference?

If you’re new to horse racing or sports betting, odds can seem confusing—especially when you see both fractional odds and decimal odds used by different bookmakers and websites. This guide breaks down exactly what each type means, how to convert between them, and which is easier for you!

What Are Fractional Odds?

Fractional odds are the traditional way of displaying odds in the UK and Ireland. You’ll see odds written like 5/1 (“five to one”) or 7/2 (“seven to two”).

• The first number (numerator) shows how much you win.
• The second number (denominator) shows your stake amount.
• 5/1 means you win £5 for every £1 staked (plus your £1 stake back).

What Are Decimal Odds?

Decimal odds are more common in Europe and Australia, and are increasingly used worldwide (including on most betting exchanges). They look like 6.00 or 3.50.

• The number shows your total return for each £1 staked, including your stake.
• 6.00 means you’ll get £6 back for every £1 bet—£5 profit and £1 stake.
• Decimal odds are easy to compare at a glance: higher number, higher payout.

How to Convert Between Fractional and Decimal Odds

Converting is simple with a quick formula:

• Fractional to Decimal: decimal = (numerator / denominator) + 1
• Decimal to Fractional: fractional = decimal - 1 (then convert decimal part to a simple fraction, if possible)

Example: 5/1 becomes 6.00. 7/2 is 4.50.

To make it even easier, you can use our Odds Converter tool—just type in your odds and get instant conversions!

Which Odds Format Should I Use?

• Fractional odds are great if you’re used to traditional UK betting.
• Decimal odds are easier for quick maths, comparing bets, and calculating returns on the spot.
• On betting exchanges or international sites, decimal is usually the default.
• Most online bookies let you pick your preferred display format in your account settings.

FAQ: Fractional and Decimal Odds

• Do both odds types give the same payout?
  Yes! They’re just different ways of showing the same thing.
• Are fractional odds ever better value?
  No—odds format doesn’t affect value, just presentation. Always compare the numbers, not the style.
• Can I change odds format on my account?
  Almost every online bookmaker and exchange lets you switch between fractional and decimal odds in your settings.
• Is there an easy way to convert?
  Yes! Try our Odds Converter for fast, accurate results.