About NumberChan
NumberChan is a free collection of number tools for everyday financial and operational comparisons: percentages, compound interest, loan and mortgage payments, hourly-to-salary pay, discounts and sales tax, profit and markup, purchasing power, load yield, and illustrative tax and creator-income planning.
Calculations with context
Each calculator runs in your browser. The accompanying guides explain the formula, show worked examples, and identify assumptions so that a result can be understood rather than treated as a promise. No account is needed to use the tools.
What the numbers do not establish
A mathematical result is only as useful as its inputs and model. A profit figure reflects entered costs; an interest projection assumes a rate and compounding schedule; a tax estimate is not an official return. NumberChan does not provide personalized financial, legal, or tax advice and does not represent a bank, tax authority, or video platform.
Private inputs, transparent limits
Calculation inputs and saved results stay in your browser. Visit analytics and third-party advertising are separate from those calculations. Read the Privacy Policy for the distinction and available choices.