About

Calc My Net Worth is a set of free calculators for common personal finance questions — take-home pay, rent vs. buy, net worth, and Coast FIRE. Every calculator runs entirely in your browser: nothing you type into a tool is sent to us or stored anywhere.

Our approach to accuracy

Every figure — federal tax brackets, FICA rates, state tax rates, property tax and insurance defaults, the 4% withdrawal-rate rule, net worth benchmarks — is sourced directly from the primary government or institutional publication (IRS, Social Security Administration, Federal Reserve, Tax Foundation, and similar), not from a secondary blog restating someone else's numbers. Every tool page has a visible “Sources” section linking to exactly where each number came from, so you can verify it yourself rather than take our word for it.

Where a calculator simplifies something for clarity — for example, using a statewide average instead of a metro-specific rate — that simplification is disclosed directly on the tool, not hidden in fine print.

Not financial advice

These tools produce estimates to help you understand a calculation, not personalized financial, tax, or legal advice. For decisions specific to your situation, talk to a qualified professional.

Who's behind this

Calc My Net Worth is built and maintained independently. Spotted an error in a formula? Check the Sources link on the relevant tool for where the figure comes from.