Convertissez les cotes décimales, fractionnaires et américaines, calculez la probabilité implicite et estimez les gains possibles. Conçu pour les lecteurs football et score exact.
Enter one odds format and the calculator updates the other formats, implied probability and return estimate.
A 2-1 score prediction priced at cotes décimales of 7.50 has an implied probability of 13.33% before bookmaker margin. A £10 stake would return £75 if the selection wins, including the stake.
Cotes décimales show the total return for every unit staked. Cotes of 2.50 mean every £1 returns £2.50 if the bet wins, including the original stake.
Fractionnaire odds show profit relative to stake. Cotes of 5/2 mean £2 staked can make £5 profit, plus the original £2 stake back if successful.
Positive Américain odds show profit from a 100-unit stake. Negative Américain odds show how much you need to stake to make 100 units profit.
Probabilité implicite converts odds into a percentage chance suggested by the price. It is not a guarantee and does not remove bookmaker margin.
Use this table as a quick reference when comparing football betting prices across decimal, fractional and Américain odds formats.
| Cotes décimales | Fractionnaire odds | Américain odds | Probabilité implicite |
|---|---|---|---|
| 1.25 | 1/4 | -400 | 80.00% |
| 1.40 | 2/5 | -250 | 71.43% |
| 1.50 | 1/2 | -200 | 66.67% |
| 1.67 | 2/3 | -150 | 59.88% |
| 1.80 | 4/5 | -125 | 55.56% |
| 1.91 | 10/11 | -110 | 52.36% |
| 2.00 | 1/1 | +100 | 50.00% |
| 2.25 | 5/4 | +125 | 44.44% |
| 2.50 | 3/2 | +150 | 40.00% |
| 3.00 | 2/1 | +200 | 33.33% |
| 3.50 | 5/2 | +250 | 28.57% |
| 4.00 | 3/1 | +300 | 25.00% |
| 5.00 | 4/1 | +400 | 20.00% |
| 6.00 | 5/1 | +500 | 16.67% |
| 7.50 | 13/2 | +650 | 13.33% |
| 10.00 | 9/1 | +900 | 10.00% |
| 13.00 | 12/1 | +1200 | 7.69% |
| 19.00 | 18/1 | +1800 | 5.26% |
| 26.00 | 25/1 | +2500 | 3.85% |
Score exact markets often use larger prices than match result markets, so understanding implied probability is important. A scoreline priced at 13.00 may look attractive, but the implied probability is only 7.69% before bookmaker margin.
Use the converter to compare the price with your own view of the match. If your estimate of the chance is lower than the implied probability, the odds may not offer value. If your estimate is higher, the price may be worth deeper analysis — but it still does not guarantee a profitable bet.
An odds converter changes a betting price between decimal, fractional and Américain formats. This page also calculates implied probability, total return and profit from a chosen stake.
Cotes décimales show total return per unit staked. A £10 stake at 2.50 returns £25 if the bet wins, including the original stake.
For cotes décimales, divide 100 by the price. Cotes décimales of 4.00 imply 25% before bookmaker margin.
Cotes décimales are usually easiest for return calculations. Fractionnaire odds remain common in the UK, while Américain odds are common in the United States.
No. It only converts prices and performs calculations. It cannot predict football results and should not be treated as betting advice.