About FinCalcs

What we are

FinCalcs is a free collection of financial calculators built to help people make smarter money decisions. We cover the calculations that matter most in everyday financial life — mortgages, loans, savings, investments, retirement, tax, debt payoff and more — with tools designed to be fast, accurate and genuinely easy to use. Our audience spans the United States, United Kingdom, Canada and Australia.

How our calculations work

Every calculator runs entirely in your browser using established financial formulas — the same amortization, compound interest and tax-bracket math used by banks and financial professionals. There are no external servers processing your numbers and no API calls required for the core tools, which means results appear instantly as you type and work even offline. Where relevant, we use current reference figures (such as the 2025 US federal tax brackets) and note when values are estimates.

Our accuracy commitment

We work hard to keep our formulas correct and our data current. That said, our calculators are designed for education and estimation. Real-world figures depend on factors we can't see — your exact lender terms, your full tax situation, fees, and rates that change daily. Always confirm important numbers with a qualified professional and the relevant institution before making a decision.

Your data is never stored

We don't ask for your email, we don't require an account, and we don't store the numbers you enter. Calculations happen on your device and disappear when you leave. The optional "copy result link" feature encodes your inputs into a URL only when you choose to share it.

Contact us

Have feedback, spotted an error, or want to suggest a calculator? We'd love to hear from you. Reach out at hello@getfincalcs.com.