Odds Converter
Convert between American, decimal, and fractional odds formats instantly. Enter odds in any format and see all conversions update in real time.
Inputs
$
Results
American Odds +150
Decimal Odds 2.5000
Fractional Odds 3/2
Implied Probability 40.00%
To Win $150.00
Payout $250.00
How It Works
American to Decimal: For positive odds: (american / 100) + 1. For negative odds: (100 / |american|) + 1.
Decimal to American: If decimal ≥ 2: (decimal - 1) × 100. If decimal < 2: -100 / (decimal - 1).
Decimal to Fractional: Subtract 1 from the decimal odds, then express as a simplified fraction using the greatest common divisor.
Implied Probability: 1 / decimal × 100. This represents the break-even win percentage needed at these odds.
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