Who runs this site
Hi — I'm Raphaël, and I build and maintain ClearLoanMath from Quebec, Canada. It's an independent project, not a company: one person who writes the code, checks the math, and answers the email.
I made this because most loan calculators get in the way. They lead with the monthly payment and bury what the loan actually costs, ask for an email address before showing results, or leave out the things that really decide your bill each month — property tax, insurance, PMI. So I built the version I wanted to use: every number visible at once, updating as you type, with no sign-up and nothing collected.
I'm not a licensed financial advisor, and nothing here is financial advice. This is a calculator, built carefully, by someone who thinks you should be able to see the real numbers before you sign anything.
What this site is
ClearLoanMath is a set of free, fast loan calculators: a general loan calculator, a mortgage calculator with taxes, insurance and PMI, an auto loan calculator with trade-in and sales tax, and a full amortization schedule generator with CSV export. There is no sign-up, no paywall, and no "unlock full results" upsell — every feature works for everyone, instantly.
How the math works
All calculators use the standard amortization formula that banks and lenders use for fixed-rate loans, applied month by month: each month interest accrues on the remaining balance, the rest of the payment reduces principal, and the process repeats until the balance reaches zero. Extra payments are applied directly to principal. Zero-percent loans are handled exactly (payment = amount ÷ months). The schedules the tools produce are the same tables a lender's servicing system would generate for the same inputs.
Your privacy
Every calculation runs entirely in your browser using JavaScript. The numbers you type — loan amounts, rates, payments — are never sent to a server, stored, or shared. There are no accounts and no databases. See the privacy policy for details, including how advertising cookies work on this site.
Accuracy and limitations
I check results against known reference values and lender-published examples. That said, these tools are estimators: real loans involve exact day-count conventions, escrow adjustments, rate changes, and fees that vary by lender and location. Always confirm final numbers with your lender before making decisions, and treat these calculators as what they are — a fast, honest way to understand and compare offers. Nothing on this site is financial advice.
Contact
Found a bug, a confusing result, or a calculator you wish existed? See the contact page — feedback genuinely shapes what gets built next.