Odds converter

Turn a Polymarket price into a percentage chance, a payout multiplier and American or fractional odds, or start from any of them.

I have
Value
Polymarket price40¢
Implied chance40%
Decimal odds (payout per $1)2.50x
American odds+150
Fractional odds3/2

How the conversion works

A Polymarket share pays $1 if it wins, so its price in cents is the market's implied chance: 40¢ is about 40%. The payout multiplier is 1 ÷ price, so 40¢ pays 2.5x. See how to read Polymarket odds for worked examples.

American odds are +100 or more for underdogs and −100 or less for favourites, and fractional odds show profit over stake (3/2 means $3 profit on $2). Prices of exactly 0¢ or 100¢ cannot be converted.

For information only, not financial advice. Prediction markets involve real risk and you can lose your whole stake. Polycord is not affiliated with Polymarket.