About We Are Calculator

We Are Calculator (wearecalculator.com) exists to make serious financial math free and accessible to everyone. Complex financial decisions — buying a home, retiring early, paying off debt, valuing a business — shouldn't require expensive software, a spreadsheet degree, or handing your personal data to a lead-generation site.

What We Offer

We maintain a library of 66+ professional-grade financial calculators across seven categories: personal finance, loans & debt, mortgage & housing, retirement, investing, taxes, real estate investing, and business finance. Each tool is paired with in-depth written guidance — the formula behind the calculation, step-by-step usage instructions, worked examples, and frequently asked questions — so you understand not just what the number is, but why.

Privacy by Architecture, Not by Promise

Unlike most calculator sites, our tools run entirely in your browser using a local-first architecture. Your salary, mortgage details, portfolio balances, and business revenue never leave your device. We have no accounts, no sign-ups, and no forms asking for your phone number. There is nothing for us to sell because we never receive your numbers in the first place.

How We Keep Our Math Accurate

Our formulas follow the standards used by lenders, the IRS, and regulators — the same amortization math recommended by the Consumer Financial Protection Bureau (CFPB), IRS rules for RMDs and retirement contribution limits, and published academic research such as the Trinity Study for safe withdrawal rates. Where assumptions matter (inflation rates, expected returns, tax brackets), we state them plainly and let you change them.

Our Core Values

• Privacy: your data stays on your device — always.
• Accuracy: banking-grade formulas with sources cited.
• Transparency: every assumption is visible and editable.
• Accessibility: free forever, works on any device, no paywall.

How the Site Is Funded

We Are Calculator is supported by unobtrusive display advertising and, on some pages, affiliate links to established financial institutions (see our Affiliate Disclosure). Neither ever influences our formulas, our editorial content, or the tools we choose to build — no partner can pay to change a number on this site. Read our full Editorial & Verification Policy to see how every formula is checked against primary sources.

Have a question, spotted an error, or want a calculator we haven't built yet? Get in touch — reader suggestions have shaped much of the site.