Loan Calculator
Calculate monthly loan payments and total interest for any amount, rate, and term. See how much you save by adding extra payments.
Runs 100% in your browser — nothing is uploaded.
Frequently asked
Same underlying math (standard amortization), but the Mortgage tool surfaces the year-by-year schedule and property-specific caveats. The Loan tool focuses on any general loan and highlights extra-payment savings.
Adds that amount to every scheduled payment. Each dollar goes 100% to principal, shortening the term and reducing lifetime interest. The tool shows exactly how much you'd save.
The math applies to any fixed-rate installment loan. Credit cards typically use minimum-payment formulas that are more complex — this tool is best for personal loans, auto loans, and student loans.
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