About CalcVault

Free financial tools for everyone — no sign-up, no fees, no nonsense.

What Is CalcVault?

CalcVault is a free, browser-based platform of 35 professional-grade financial calculators covering mortgages, auto loans, investments, retirement planning, taxes, budgeting, and business finance. Every calculation runs entirely in your browser — nothing is sent to a server, and no account is required.

We built CalcVault because most financial calculators online are scattered across dozens of sites, riddled with confusing ads, or locked behind paywalls and sign-up forms. CalcVault puts 35 tools in one place, loads instantly, and always shows its work.

Our 35 Tools

Loans & Debt

10 tools · Mortgage, auto loans, credit card payoff, debt strategies

Investment & Savings

8 tools · Compound interest, retirement, ROI, dollar-cost averaging

Budget & Personal Finance

7 tools · 50/30/20 rule, net worth, take-home pay, rent vs buy

Tax

5 tools · Federal income tax, capital gains, freelancer, sales tax

Business Finance

5 tools · Profit margin, break-even, burn rate, business loans

How It Works

✓All calculations run 100% in your browser using proven financial formulas
✓No data is collected, stored, or shared — not even your inputs
✓No account or email address is required to use any tool
✓Results are instant — there is no server round-trip
✓Works on any device — mobile, tablet, or desktop

A Note on Our Content

CalcVault is a tool for mathematical estimation — not a licensed financial advisor. All results are based on the inputs you provide and standard financial formulas. They are intended for educational and planning purposes only.

For advice specific to your financial situation, please consult a qualified financial advisor, accountant, or tax professional. See our Disclaimer for full details.