The numbers that cost people the most money in crypto are not the ones on the price chart: they are the fees nobody added up, the impermanent loss nobody modelled and the liquidation price nobody worked out. These four tools run entirely in your browser, send nothing to any server and ask for no personal data.
None of them is an adviser. They are calculators: they do the arithmetic you should be doing yourself before you decide, with the real August 2026 parameters already loaded.
Add up the trading fee, the spread and the withdrawal charge to see how much crypto you actually end up holding. Sixteen models you can filter by price, secure element, open firmware and Bitcoin-only support. How much you lose by providing liquidity to an AMM instead of simply holding both assets. The price at which a collateralised loan or a leveraged position gets closed out from under you.Real cost of buying on an exchange
Hardware wallet comparison
Impermanent loss calculator
Liquidation price
How to use them well
A calculator answers exactly the question you ask it, and that is the problem: feed it a bad assumption and it hands back a precise, wrong number. Three cautions that apply to all four.
Default parameters go stale. The exchange fees and wallet prices loaded into these tools were collected on 28 August 2026. Before making a decision on the strength of one of those figures, check it against the source linked on each page.
The result cannot include what you did not tell it. The liquidation calculator does not know what funding rate your platform charges you; the fee calculator does not know what your bank takes on a deposit. Treat the output as an order of magnitude, not a statement of account.
Dollar amounts are illustrative. Figures are shown in dollars for consistency, using the same numbers as the published schedules rather than converted values. Check the actual currency and amount your platform charges you in.
None of these replaces a professional. On anything with tax consequences, especially if you move meaningful sums or have traded across several platforms, an adviser will save you more than the fee. The regulatory and tax framework is set out in the crypto regulation guide.
These tools are not advice. They are educational calculators applying public formulas to the data you enter. They know nothing about your tax position, your risk tolerance or your net worth, and they should not be the only basis for any decision.