About FinanceCalc

Updated: October 13, 2026

FinanceCalc is a free collection of 49 financial calculators covering mortgages, loans, savings, investments, retirement, budgeting and taxes.

Why we built it

Most financial calculator sites bury the tool under ads, require signups, or hide what formula they use. We do the opposite:

• Everything runs in your browser — your numbers never leave your device, nothing is stored, no account needed.
• Transparent methodology — every calculator page explains the formula it uses and shows a worked example.
• Honest framing — results are estimates for planning, clearly labelled as not financial advice.

Who it's for

Anyone comparing a mortgage offer, planning a payoff, checking what a monthly saving becomes in 20 years, or learning how a financial concept works — students, homeowners, freelancers and curious planners.

How the calculators work

Each tool implements standard published formulas (amortization, compound interest, present/future value, tax brackets). You enter your numbers; JavaScript computes the result instantly on your device. Nothing is uploaded.

Get in touch

Found an error or want a calculator added? Contact us — suggestions genuinely shape the roadmap.