Free, fast and private

Free Online Calculators for Smarter Money Decisions

Calculate mortgages, loans, investments, taxes, retirement savings, debt, savings, and more with our free online calculators.

Built to Be Clear and Trustworthy

  • Private by designCalculations run in your browser. The numbers you type into a calculator are not sent to our servers by the calculator.
  • Formulas in plain sightEvery calculator page shows its formula, a worked example and the assumptions behind the result.
  • Tax years are labeledTax calculators state the tax year they use, and the figures are kept in editable site settings.

Frequently Asked Questions

Are these calculators free to use?

Yes. Every calculator on this site is free to use, and you do not need to create an account.

Are the results exact?

Results are estimates based on the inputs and assumptions you provide. Real loan terms, taxes and investment returns will differ, so use the numbers for planning and confirm details with a lender, employer or professional.

Is the information I enter stored?

The calculators run entirely in your browser and do not send the values you type to our servers. Our privacy policy explains what the site itself may collect, such as contact-form messages or advertising and analytics cookies if enabled.

Which tax year do the tax calculators use?

Each tax calculator lets you select the tax year and labels it in the results. The figures behind them are maintained in the site’s tax settings.

Is this financial advice?

No. The calculators and guides are educational tools and are not financial, tax or legal advice.