Free Tool
Odds Converter
Convert between American, decimal, and fractional odds. See the implied probability instantly.
Positive = underdog (e.g. +200) | Negative = favorite (e.g. -150)
Decimal
2.50
Fractional
150/100
Implied Probability
40.0%
Quick Reference
| American | Decimal | Fractional | Probability |
|---|---|---|---|
| -500 | 1.20 | 1/5 | 83.3% |
| -250 | 1.40 | 2/5 | 71.4% |
| -110 | 1.91 | 10/11 | 52.4% |
| +100 | 2.00 | 1/1 | 50% |
| +200 | 3.00 | 2/1 | 33.3% |
| +500 | 6.00 | 5/1 | 16.7% |
| +1000 | 11.00 | 10/1 | 9.1% |