What PayoffCalc is
PayoffCalc is a free library of financial calculators built for people in the United States who want straight answers about debt, loans, taxes, and saving. Every calculator on this site does three things:
- Gives you a real answer — your debt-free date, your monthly payment, your projected balance — computed instantly in your browser.
- Shows its math — the formula, a breakdown table, and the assumptions behind the number. No black boxes.
- Asks for nothing — no account, no email signup, no download. Your numbers never leave your device because every calculation runs locally in your browser.
Why we built it
Most online calculators give you a single number and hide how they got there — or they exist mainly to capture your contact information for a sales funnel. We think a calculator should be a tool, not a trap. So we publish the formulas, explain the edge cases (like when a minimum payment never pays off a balance), and write long-form guides that teach the concepts behind the numbers.
Editorial independence
PayoffCalc does not sell financial products, and our calculators do not recommend specific lenders, brokers, or funds. When we name a product (for example, an ETF in an educational projection), it is to make the math concrete — not an endorsement. See our Editorial Standards and Methodology for how content and calculators are produced and checked.
What we are not
We are not financial advisors, tax professionals, or attorneys. Everything on this site is educational information, not personalized advice. See the Financial Disclaimer for the full statement.
Contact
Questions, corrections, or calculator requests? Reach us through the Contact page — we read every message.