Most impermanent loss calculators are Uniswap-V2-only or get the V3 concentrated-liquidity math wrong — and almost none answer the question that actually decides your P&L: do trading fees cover the loss?
ILCalc gets the math right for Uniswap V2, V3 (concentrated), and Balancer weighted pools. It shows an IL curve chart, a "vs just holding" comparison, and the break-even fee APR. Free, client-side, no wallet connect, no signup.
