Prediction Markets Converter
A prediction market price is a probability quoted in cents. This reads it back as a percentage, and as the odds a sportsbook would post on the same outcome.
A 65¢ contract is the market quoting 65.00%, which is -186 at a sportsbook. That is a translation, not a verdict — the book's number still has its fee inside, so strip that out before you decide which side of the screen holds the better price.
Cheap contracts are where the value is. Twenty cents to win a dollar is upside a sportsbook won't give you.
The price
A contract settles at 100¢ if the outcome happens and 0¢ if it does not, so the price you pay to hold it is the probability the market is quoting.
What the price says
The cents are the percent. Unlike a posted sportsbook price, this one is not padded with a book's margin — which is exactly why it is worth converting a book's number down to the same scale before you compare them.
The same price at a book
How the conversion works
Fractional odds are the profit part of the decimal price reduced to its smallest whole-number ratio, so an exact conversion sometimes prints an unfamiliar fraction rather than the tidy one a UK book would show.
A contract price is a probability before costs, not after. Venues charge differently — a Kalshi trading fee is largest around the middle of the range and smallest at the extremes — and the price on screen is not necessarily the price your order fills at. The arithmetic here is exact. Whether the number beats a sportsbook depends on the fee you pay to reach it and the depth sitting behind it in the order book.