Odds Converter
Convert between American odds, decimal odds, fractional odds and implied probability: the four formats you will meet across US and international books.
Implied probability is the break-even win rate at those odds, before any bookmaker margin. It is the single most useful number for comparing prices.
Common odds reference
Standard prices you will see on US sportsbooks, converted four ways.
| American | Decimal | Fractional | Implied probability |
|---|---|---|---|
| -300 | 1.33 | 1/3 | 75.0% |
| -250 | 1.40 | 2/5 | 71.4% |
| -200 | 1.50 | 1/2 | 66.7% |
| -150 | 1.67 | 2/3 | 60.0% |
| -120 | 1.83 | 5/6 | 54.5% |
| -110 | 1.91 | 10/11 | 52.4% |
| +100 | 2.00 | 1/1 (evens) | 50.0% |
| +105 | 2.05 | 21/20 | 48.8% |
| +110 | 2.10 | 11/10 | 47.6% |
| +120 | 2.20 | 6/5 | 45.5% |
| +140 | 2.40 | 7/5 | 41.7% |
| +150 | 2.50 | 3/2 | 40.0% |
| +160 | 2.60 | 8/5 | 38.5% |
| +180 | 2.80 | 9/5 | 35.7% |
| +200 | 3.00 | 2/1 | 33.3% |
| +250 | 3.50 | 5/2 | 28.6% |
| +300 | 4.00 | 3/1 | 25.0% |
| +400 | 5.00 | 4/1 | 20.0% |
| +500 | 6.00 | 5/1 | 16.7% |