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Free amortization calculator. Generate detailed loan amortization schedules showing principal, interest, and balance.
The amortization calculator generates a month-by-month schedule for any fixed-rate loan, breaking each payment into principal, interest, and remaining balance. It works for mortgages, auto loans, student loans, and personal loans.
Borrowers who want to see exactly how their loan pays down, accountants checking interest deductions, and investors evaluating how extra payments would change a payoff date. Mortgage brokers also use one to walk clients through their schedules.
It demystifies how early payments are mostly interest and how that ratio shifts over time. It also reveals how much an extra principal payment each month can shave off the total interest and the loan term.
It answers questions like "How much of my month-12 payment is interest?", "When does the principal portion finally exceed the interest portion?", and "What if I add $100 to every monthly payment — how much sooner is the loan paid off?"