RektCalc is a set of free crypto risk calculators built by people who have been on the wrong side of a liquidation. The idea is simple: most traders blow up not because they pick the wrong coin, but because they misjudge risk — leverage, position size, fees and the gap between a good-looking average and real profit.

What we believe

A lower average price is not profit. A 100x position is not "just a small bet". Fees and funding are not rounding errors. Our tools exist to make these things obvious before you click the button.

How it works

Everything runs in your browser. Nothing you type is sent anywhere or saved — no accounts, no tracking of your numbers. The tools are free and always will be; we keep the lights on with optional referral links and donations.

Questions, ideas or corrections? Get in touch. And whatever you trade — don't get rekt.