About the Odds Converter
Bookmakers around the world use different odds formats. This calculator converts between 6 major odds formats instantly.
Odds Format Comparison
- Decimal (European) — Most intuitive. Payout = stake × decimal odds
- Fractional (UK) — 5/1 means "5 to 1". Profit = stake × (numerator/denominator)
- American (Moneyline) — Positive (+) for underdog, negative (-) for favorite
- Hong Kong — Popular in Asia. Decimal minus 1, showing net profit ratio
- Malay — Positive = underdog (same as HK), negative = favorite (inverse)
- Implied Probability — The win probability suggested by the odds. Includes vig/margin
What is Implied Probability?
Bookmaker odds have a margin (vig/juice) built in on top of true probability. Implied probability = 1 ÷ decimal odds × 100. When this is lower than your estimated probability, you have a value bet.