Crypto Calculator FAQ & Risk Disclosure
Straight answers on how the calculators work, and an honest note on the limits of any estimate.
ProfitMine runs every number on your device — no account, no upload.ProfitMine is a set of free calculators for profit, staking yield and mining income. They turn the numbers you type into an estimate — they never connect to an exchange or a price feed.
How the calculators work
Each tool applies a plain formula to your inputs. The profit tool multiplies price by quantity, deducts the sell fee, and compares the result to your cost. The staking tool scales an annual rate across your holding days. The mining tool subtracts electricity cost from mined value. None of them predict the future.
Why prices are manual
We ask you to enter prices by hand on purpose. It removes any dependency on an API, keeps the site fast and free, and means the math is fully transparent to you. You stay in control of every assumption.
Frequently Asked Questions
Are these calculators free?
Yes. ProfitMine is free to use and runs entirely in your browser.
Do you store my inputs?
No. Calculations happen on your device and are not uploaded or saved.
Can I rely on the results for tax filing?
No. The figures are estimates for planning only. Keep your exchange records and consult a tax professional.
Do you give buy or sell advice?
Never. The tools show math from your inputs; they are not a recommendation to trade.