Sports Betting
Convert Betting Odds — American, Decimal & Fractional
Convert between American (+150), Decimal (2.50), and Fractional (3/2) odds instantly. See implied probability for any format.
In this article
Formats
Decimal (2.50): Indian/European standard। American (+150/-200): US। Fractional (3/2): UK। All express same thing: +150 = 2.50 = 3/2। Indian platforms (Dream11, Bet365 India) use decimal।
Implied Probability
Decimal 2.50 = 1/2.50 = 40%। The total of all outcomes always exceeds 100% — the difference is bookmaker profit।
⚡ CalcWolf Insight
The best odds format for spotting value is implied probability. Train yourself to think in probabilities rather than odds — instead of seeing -150, think "60% implied." Then ask: do I believe this outcome has more or less than a 60% chance? If more, pass. If less, bet the other side.
Frequently asked questions
American to decimal?▾
Positive: (odds/100)+1। +150 = 2.50। Negative: (100/|odds|)+1। -200 = 1.50।
Indian platforms?▾
Decimal format standard। Dream11, Bet365, Parimatch use decimal।
✓ Math logic verified against primary sources
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