Calculators
Convert Odds Format
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Convert Odds Format
Convert Odds Format
Converts between American, Decimal, Fractional, and Implied Probability formats. Useful when comparing lines across international sportsbooks that display odds differently.
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Enter a value in any one format and the rest update instantly. American = moneyline (+150 / -200). Decimal = total payout per $1 staked (2.50). Fractional = profit-to-stake ratio (3/2). Implied Probability = break-even win rate (40%).
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Conversion chain from +150: Decimal = (150 / 100) + 1 = 2.50. Implied probability = 100 / (150 + 100) = 40%. Fractional = 2.50 - 1 = 1.50 = 3/2. From -200: Decimal = (100 / 200) + 1 = 1.50. Implied probability = 200 / (200 + 100) = 66.67%. Fractional = 1.50 - 1 = 0.50 = 1/2.