About WorthAxis

WorthAxis is a free collection of finance calculators that help you make clearer money decisions. Each tool turns the numbers you already know — a loan amount, a home price, an interest rate, a monthly budget — into a straight answer: what a payment really costs, how long a debt will take to clear, how much your savings could grow, or how much coverage your family may need.

It is built for everyday borrowers, homeowners, and savers in the United States and other English-speaking markets who want to run their own scenario rather than read a generic article. Every calculator works entirely in your browser, so you can change inputs freely and see the result update instantly — no sign-up, no spreadsheet required.

Our methodology commitment

Money math is only useful if it is correct, so we hold every tool to the same standard:

• Standard, published formulas. Our calculators use the same established methods lenders, planners, and textbooks use — amortization for loans, the 28/36 rule for affordability, combined loan-to-value for home equity, the DIME method for life insurance, and compound growth for investing.
• Full-precision math. Calculations run in full precision internally and are only rounded for display, so the figures you see add up the way they should.
• Transparency about estimates. Every result is an estimate for education and planning, not a quote or professional advice. We show how each number is derived and call out the assumptions and limits, so you know exactly what a result does — and does not — tell you.

For the limits of these tools, see our disclaimer. To get in touch, visit our contact page.