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PolymarketKalshiManifold

Implied Probability Converter

Convert odds and prices into percentage probabilities.

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Overview

This tool converts between different odds formats (Decimal, Moneyline, Fractional) and implied probability percentages.

Why it Matters

Prediction markets trade in probabilities (0-100 cents), but external information often comes in other formats (e.g., sports betting odds). Converting them helps you spot discrepancies and value.

Formulas

  • Decimal to %: (1 / Decimal Odds) * 100
  • Moneyline (+): 100 / (Moneyline + 100) * 100
  • Moneyline (-): Moneyline / (Moneyline + 100) * 100