The world's most widely used odds format — simple, clean, and used by default across Europe, Australia, Canada, and most international sportsbooks.
Decimal odds (sometimes called European odds) display the total return per unit staked — your original stake plus profit, all in one number. This makes them the easiest format for quickly calculating exactly what you'll get back.
You bet €50 at decimal odds of 2.50:
| Decimal Range | Meaning | Implied Probability |
|---|---|---|
| 1.01 – 1.99 | Strong favourite | 50% – 99% |
| 2.00 | Even money (coin-flip) | 50% |
| 2.01 – 5.00 | Moderate underdog | 20% – 50% |
| 5.01+ | Long-shot underdog | Under 20% |
Convert any decimal odd into the probability the bookmaker is implying:
This is the foundation of value betting — comparing the bookmaker's implied probability against your own estimate of the true probability to identify mispriced bets. See our value betting guide for the full framework.
Decimal odds convert directly to every other format. American odds, fractional odds, and Asian formats are all mathematically derived from the same underlying probability — they're just different display conventions. Use our odds converter to translate instantly.
Decimal odds represent the total payout per unit staked, including your original stake. A decimal odd of 2.50 means a $10 bet returns $25 total ($15 profit).
No format is mathematically "better" — they represent identical information differently. Decimal is generally considered the easiest to calculate returns with quickly, which is why most of the world has standardised on it.
Decimal odds can never go below 1.00 — that would imply zero or negative return. Odds approaching 1.00 (e.g. 1.01) represent near-certainties with minimal profit.
Enter any decimal odds and instantly see American, fractional, Hong Kong, Malay, Indonesian, and implied probability equivalents.