Mortgage Snowball is a small collection of free financial calculators built around one idea: show the real, month-by-month math instead of rough estimates. Every tool on this site computes full amortization or growth schedules in your browser — you can inspect every payment, export the numbers, and check them yourself.
All computation happens locally in your browser. Nothing you type is sent to a server. The mortgage and student-loan tools build two complete payment schedules (with and without your extra payments) and report the difference; the compound interest tool iterates month by month using your account's compounding frequency; the refinance tool compares both loans' full remaining cost including closing costs.
This site is independently made and is not affiliated with any bank, lender, or government agency (including Lånekassen, referenced by our Norwegian student-loan calculator). The site is supported by advertising. Calculators are for education only and are not financial advice — talk to a qualified professional about your situation.
Questions, corrections, or calculator requests: contact@mortgagesnowball.com. Corrections are especially welcome — if you find a number that looks wrong, we want to know.