Amortization Calculator

Estimate monthly payment, total interest, total repayment, payoff time, and view an amortization schedule showing how each payment is split between principal and interest.

Calculate Amortization

Each payment is split into interest and principal. Early payments usually contain more interest, while later payments usually contain more principal.
Your result will appear here.

How the amortization calculator works

Monthly payment:
The payment is estimated from loan amount, interest rate, and term using a standard amortization formula.

Interest portion:
Each month’s interest is based on the current remaining balance.

Principal portion:
The rest of the payment reduces the loan balance.

Schedule output:
The table shows payment number, payment amount, principal paid, interest paid, and remaining balance.

Why amortization matters

Amortization makes it easier to understand how borrowing costs build up over time. It is especially useful for comparing loan terms, checking payoff timing, and seeing the effect of extra payments.

This is a planning estimate based on a standard monthly payment model.

What your result means

Your result shows monthly payment, total interest, total repayment, payoff time, and an amortization schedule that breaks each payment into principal and interest.

Amortization calculator tips

Frequently asked questions

What is an amortization schedule?

An amortization schedule is a payment-by-payment table showing how much of each payment goes to interest, how much goes to principal, and what balance remains.

Why do early payments include more interest?

Because interest is calculated on the outstanding balance, and the balance is highest at the beginning of the loan.

Do extra payments change the schedule?

Yes. Extra payments reduce principal faster, which usually shortens payoff time and reduces total interest.

Can I use this for mortgages or other loans?

Yes. It works well for many installment-style loans that use standard monthly amortization.