Polymarket arbitrage calculator
Plug in best-ask prices and capital. Get guaranteed payout, edge, and expected value.
Result
Enter a price between 0 and 1 for every outcome.
This calculator assumes order book depth and that all legs fill at the displayed price. In practice, slippage, partial fills, and fee changes can erode the edge.
$100 profit projection
See how the $7.62 minimum compounds linearly from a $100 start.