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Odds converter: American, decimal & fractional
Type a price in any format and the others update instantly. American odds are standard at US sportsbooks; decimal odds are standard in Europe and fractional odds in the UK and Ireland.
Type in any field. The others update as you type.
Common odds
| Decimal | Fractional | American | Implied probability% |
|---|---|---|---|
| 1.10 | 1/10 | −1000 | 90.9% |
| 1.20 | 1/5 | −500 | 83.3% |
| 1.25 | 1/4 | −400 | 80.0% |
| 1.33 | 1/3 | −303 | 75.2% |
| 1.40 | 2/5 | −250 | 71.4% |
| 1.50 | 1/2 | −200 | 66.7% |
| 1.67 | 4/6 | −149 | 59.9% |
| 1.80 | 4/5 | −125 | 55.6% |
| 1.91 | 10/11 | −110 | 52.4% |
| 2.00 | 1/1 | +100 | 50.0% |
| 2.10 | 11/10 | +110 | 47.6% |
| 2.25 | 5/4 | +125 | 44.4% |
| 2.50 | 6/4 | +150 | 40.0% |
| 2.75 | 7/4 | +175 | 36.4% |
| 3.00 | 2/1 | +200 | 33.3% |
| 3.50 | 5/2 | +250 | 28.6% |
| 4.00 | 3/1 | +300 | 25.0% |
| 5.00 | 4/1 | +400 | 20.0% |
| 6.00 | 5/1 | +500 | 16.7% |
| 8.00 | 7/1 | +700 | 12.5% |
| 10.0 | 9/1 | +900 | 10.0% |
| 21.0 | 20/1 | +2000 | 4.8% |
The three formats
- American
- Positive numbers show the profit on a $100 bet: +150 means a $100 bet wins $150. Negative numbers show what you must bet to win $100: −200 means you bet $200 to win $100.
- Decimal
- The total return per $1 bet, stake included. A price of 2.50 returns $2.50 for every $1 bet, the same as +150.
- Fractional
- The profit per unit bet. 6/4 means 6 profit for every 4 bet, the same as decimal 2.50 and American +150.
- Implied probability
- 1 ÷ decimal price. A price of 2.50 (+150) implies 40%.
Formulas
decimal = 1 + American ÷ 100 (American ≥ +100)
decimal = 1 + 100 ÷ |American| (American ≤ −100)
decimal = 1 + numerator ÷ denominator
American odds are rounded to whole numbers. Fractions follow the conventional ladder sportsbooks use (for example 11/10 rather than 21/19), so a converted fraction may be rounded slightly.