Amortization Calculator

Estimate a fixed-rate loan payment while focusing on the month-by-month amortization breakdown.

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Input

Enter the loan details and optional extra payment to build a schedule that shows how each installment is split between principal and interest. This tool shows the result instantly without step-by-step output.

Input summary

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How to use Amortization Calculator

Provide the borrowing terms, and the calculator will show not only the payment amount but also how the balance declines over the life of the loan.

What this calculator is for

This calculator is for borrowers who want to inspect the repayment structure in detail instead of seeing only one headline payment. It is especially useful when you want to understand why interest is front-loaded early in a fixed-rate loan.

Tips

Look at the early rows of the schedule to see how much of the first payments go to interest before principal picks up speed.
If you add extra payments, review the revised schedule rather than only the new payoff date because the interest savings pattern matters too.