Loan Calculator

Calculate amortized loan payments, deferred lump-sum payoffs, or bond proceeds with compound and payback frequency options.

The Loan Calculator estimates payments and interest for a fixed installment loan from amount, rate, and term. Use it for personal loans, auto loans, or any fixed-rate amortizing debt before you sign. What this calculator does Enter how much you borrow, the annual interest rate, and how long you will repay. Simple Calculators estimates the regular payment and how much interest you pay over time. Comparing two terms side by side (for example 36 vs 60 months) is often the fastest way to see the payment vs interest tradeoff. How the math works Like a mortgage, a standard fixed installment loan uses an amortization formula: monthly rate and number of payments determine a level payment that clears principal and interest by the end of the term. Extra principal payments (if your lender allows) shorten the schedule; this page shows the base schedule unless you model prepayments separately.