Prediction Market Calculator

Convert prediction market prices, implied probability, and betting odds instantly. Use this free calculator to move between price, percentage chance, and decimal, fractional, or American odds.

Enter your market input
Enter a prediction market price between 0.01 and 0.99.
Quick examples
Converted values
Prediction Price
Probability
Decimal Odds
Fractional Odds
American Odds

How prediction market pricing works

In prediction markets, price and probability are basically the same thing. A contract trading at $0.62 implies a 62% chance. A contract at $0.25 implies a 25% chance. This makes prediction markets easy to compare with betting odds once you convert them properly.

Worked example

A prediction market price is implied probability written as a price between $0.00 and $1.00. For a contract trading at $0.62:

  • $0.62 = 62.00% implied probability.
  • That converts to about 1.61 decimal odds.
  • The same price is roughly -163 in American odds.

Why this calculator is useful

This helps you compare prediction markets with betting markets, understand whether a price looks rich or cheap, and translate percentages into familiar betting odds. It is especially useful for users switching between sportsbooks, exchanges, and prediction market platforms.

FAQ

Is a $0.62 price always exactly a 62% chance? It is the market-implied probability before considering fees, liquidity, spread, or your own judgment.

Can I compare prediction prices with bookmaker odds? Yes. Convert both into probability or decimal odds so the prices are easier to compare.