Small, fast calculators for the questions that come up every time you look at a market: what does this price mean, how does it compare to a sportsbook, and what do I get back if I’m right?
Most used: Odds converter · No-vig calculator · Price-gap scanner · Polymarket leaderboard.
Odds converter
Convert share prices into percentages and American, decimal or fractional odds, and see what a stake pays.
Open →Polymarket vs Kalshi price gaps
Every event on both venues, matched outcome by outcome and ranked by price gap.
Open →Polymarket leaderboard
The top 50 traders by profit or volume, by day, week, month or all time.
Open →No-vig calculator
Remove the margin from any odds to find the fair price.
Open →Looking for data rather than calculators? Our data section has dated, citable figures on Polymarket vs Kalshi price gaps and leaderboard movers.