Enter how much each token's price has changed since you deposited into a 50/50 pool (e.g. ETH/USDC). For a stablecoin, leave it at 0%.
What the number means
If Token A doubles while Token B stays flat, a 50/50 pool quietly rebalances — selling the winner as it rises — so you end up with less of the token that mooned. That gap is impermanent loss. It is symmetric: it doesn't matter which token moves, only that they move apart. Two stablecoins together have almost none; a volatile token paired with a stablecoin has the most. Pool fees and rewards can make up for it, which is the whole bet of providing liquidity — just go in knowing the trade-off.
Trading with leverage instead of providing liquidity? Check your liquidation price and size from risk with the position size calculator.