To read football odds, work out what each price implies: fractional odds such as 5/1 show your profit per £1 staked, decimal odds such as 6.00 show the total return per £1, and both convert to a chance by dividing one by the decimal price. This guide shows how to read football odds in UK fractions and decimals, turn them into probabilities and spot the bookmaker’s margin.
It sits alongside our guides to accumulator maths and double chance fair odds, and uses the same logic as the WinnScore model.
Football Odds at a Glance
| Fractional | Decimal | Implied chance | Meaning |
|---|---|---|---|
| 1/4 | 1.25 | 0.80 | Strong favourite |
| 1/2 | 1.50 | 0.67 | Favourite |
| Evens (1/1) | 2.00 | 0.50 | Level |
| 2/1 | 3.00 | 0.33 | Underdog |
| 5/1 | 6.00 | 0.17 | Outsider |
| 10/1 | 11.00 | 0.09 | Long shot |
The implied chance is one divided by the decimal price. It is the chance at which the price would be fair, before any bookmaker margin.
How Do Fractional Odds Work?
Fractional odds quote the profit relative to the stake. According to Wikipedia’s article on odds, odds of 4/1 imply a £400 profit on a £100 stake, and the stake is returned as well. A £5 bet at 5/1 therefore pays £25 profit plus your £5 back. Odds of 1/1 are called evens.
How Do You Convert Fractional Odds to Decimal?
Divide the first number by the second and add one. Odds of 5/1 become 6.00, and 1/4 becomes 1.25. To go back, subtract one from the decimal price. Decimal odds already include your stake, so a £5 bet at 6.00 returns £30 in total.
What Chance Do the Odds Imply?
Divide one by the decimal price. A price of 5.00 means one divided by 5.00, which is 0.20, or a one in five chance. Short prices such as 1.25 imply a high chance, long prices imply a low one. This is the starting point for every value calculation.
How Can You Spot the Bookmaker’s Margin?
Add up the implied chances of every outcome in the market. A fair three-way match result would add up to exactly one. Take a match priced 2.00 for the home win, 3.50 for the draw and 4.00 for the away win: the chances are 0.50, 0.29 and 0.25, which sum to about 1.04. The extra 0.04 is the margin, or overround, built into the prices.
That is why a price is never quite the true chance. On WinnScore the model removes the margin before comparing odds with its own estimate, as explained on our value bets page.
Frequently Asked Questions
It means you win £5 for every £1 staked, plus your stake back. A £2 bet at 5/1 returns £12 in total: £10 profit and your £2 stake. In decimal odds the same price is 6.00. The chance at which 5/1 would be fair is about one in six.
Neither is better; they show the same thing. Fractional odds are traditional in UK shops and show profit, while decimal odds show the total return and make multiplying legs and calculating probabilities simpler. Most UK bookmakers let you switch the display in your account settings.
Odds-against means the price is longer than evens, such as 2/1, so a winning bet pays more than the stake. Odds-on means the price is shorter than evens, such as 1/2, so the profit is smaller than the stake. Odds-on selections have an implied chance above one half.
No. Even a strong favourite at 1.25 loses about one time in five if the price is fair, and every bet can lose. Short prices also carry the bookmaker’s margin. Only stake what you can afford to lose.
The Takeaway
Reading odds means converting them: fraction to decimal, decimal to chance, then adding up the market to see the margin. Once you can do that, any price can be compared with your own estimate. If you bet, read our responsible gambling page first.
How we prepared this guide: The conversions use standard odds arithmetic, checked against the linked Wikipedia article on odds in November 2026. The match prices are an illustrative example, not a live market. Nothing here is betting advice. 18+ only. The cover image is an illustrative stock photo from Pexels.
Probabilities are estimates from a statistical model built on this season's results and, where available, bookmaker prices. They are not guarantees and are not betting advice. 18+ only. Read the disclaimer.
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