Financial Clarity, Simplified.

Yes. All 147 calculators are free to use with no account, no email address, no trial period, and no usage limit. There is no premium tier holding back features, and no calculator asks you to sign up before showing your result. The site is supported by unobtrusive ads, not by selling data or gating tools.

Yes. Every calculator runs client-side in your browser, which means your inputs — salary, mortgage balance, retirement savings, tax figures — are processed on your own device and are not sent to our servers unless you download a PDF or ask us to email you a result. There is no account database that could be breached, and your inputs are kept only in your own browser (for up to a year) unless you ask for an emailed reminder.

Formulas follow standard financial conventions and are checked against primary sources: IRS publications and rate tables for tax calculators, CFPB guidance for mortgage and loan disclosures, Federal Reserve and BLS data for rate and inflation assumptions, and SSA rules for retirement tools. Each calculator page shows the formula it uses so you can verify the math yourself. Results are planning estimates, not personalised advice.

Yes. Federal and state tax brackets, standard deduction amounts, contribution limits, and RMD tables are updated when the IRS and state revenue agencies publish each year's figures, and every tax calculator carries an audit date showing when its numbers were last verified. Where a rate is scheduled to change mid-year, the calculator says so.

Start with the Advanced Mortgage Calculator if you already know the home price — it gives full PITI, PMI, and an amortization schedule. Use the Home Affordability Analyzer if you're working backwards from income to a maximum price, the Refinance Analyzer to find your break-even month on a refinance, and the Rent vs Buy Calculator if you haven't decided whether to buy at all. All four are in the Mortgage & Housing hub.

The FIRE Calculator projects when your portfolio reaches full financial independence at your chosen withdrawal rate. Coast FIRE tells you the smaller amount you'd need invested today to reach that number by traditional retirement age without contributing another dollar. Barista FIRE factors in part-time income, showing how a modest ongoing wage lowers the portfolio you need and pulls your semi-retirement date earlier.

Yes. Each calculator has a Print / Export to PDF option that produces a clean report of your inputs, results, and any schedule or chart — useful for a mortgage broker, accountant, or your own records. Because we don't keep your inputs on our servers, saving or printing is how you keep a copy.

Yes. Inputs, charts, and amortization tables are built to reflow on small screens, so full scenarios can be run on a phone without pinching or horizontal scrolling. Because calculations are local, they also keep working on a slow or intermittent connection once the page has loaded.

No account exists to create. If you want to return to a scenario, bookmark the calculator and note your inputs, or export the result to PDF. This is a deliberate trade-off: we chose not to store your financial information at all rather than store it and promise to keep it safe.

No. These are calculation tools that show you the arithmetic behind a decision, along with the assumptions and formulas used. They don't know your full financial picture, risk tolerance, or local rules, and they can't account for everything a licensed advisor, CPA, or tax attorney would. Use the output as a starting point for a conversation, not as a substitute for one.

Formulas are reviewed on a rolling schedule and whenever an underlying rule changes — a new IRS revenue procedure, a revised contribution limit, an updated conforming loan limit. Each page shows its last verification date, and new calculators are added regularly based on what people search for and request through the contact form.