Free Crypto Calculators
Six calculators for the arithmetic every crypto decision runs on. Each one runs in your browser, encodes the result in a link you can share, and shows its formula so you can check the work. No account, no data collected.
Profit & ROI
Crypto Profit Calculator
Net profit, ROI, break-even and fee drag for any spot or leveraged trade, long or short.
DCA & Average Cost
Crypto DCA and Average Cost Calculator
Average cost basis across every buy, unrealized profit, break-even, and how much to buy to reach a target average.
Position Size & Liquidation
Crypto Position Size and Liquidation Calculator
Position size from account risk, entry and stop, with margin, leverage, liquidation price and R-multiple targets.
Market Cap Comparison
Crypto Market Cap Calculator
What a coin's price would be at another coin's market cap, at any target cap, or what a target price implies.
Staking Yield
Crypto Staking and Compound Yield Calculator
Rewards, final balance and effective APY from a quoted rate, compounding schedule and time horizon.
Fees & Spread
Crypto Fee and Spread Calculator
The true round-trip cost of a trade in dollars and percent, and the move you need just to break even.
Why calculators, not just guides
A guide explains the idea. A calculator lets you apply it to your own numbers, and the numbers are where most mistakes hide: a fee that looked small, a stop that sits past the liquidation price, a target that implies a market cap larger than Bitcoin's. Each tool links to the guide behind it, and each guide in the declassified archive links back to the tool that applies its formula.
The market cap calculator pulls live prices from CoinGecko and falls back to a dated snapshot if that fails. Everything else is pure arithmetic with no data source at all. Nothing you type is sent anywhere; the only place it lives is the page address. Nothing here is financial advice.
Not financial advice. Educational purposes only. Do your own research.