Calculate your exact payout, net profit, and ROI for Polymarket contracts, including accurate taker fees and maker rebates. Fees apply to the U.S. version of Polymarket.
Enter a value between 1 and 99 (e.g., 50 = 50¢)
Enter the number of contracts you want to trade
Access historical data & market results to get an edge on Mentions markets on Kalshi and other prediction markets.