Amortization Calculator
View loan amortization schedule. Monthly breakdown of principal vs interest over your loan term.
How to Use
Enter your values in the fields above and click Calculate to get instant results. All computations run locally in your browser. No data is ever uploaded or stored.
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Understanding Amortization Schedules
An amortization schedule breaks down each loan payment into principal and interest components. In the early months, most of your payment covers interest; as the balance decreases, a larger share goes toward principal. CalcSolver's amortization calculator generates a month-by-month breakdown for any loan.
On a $200,000 mortgage at 6.5% for 30 years ($1,264/month), the first payment includes about $1,083 in interest and only $181 toward principal. By year 20, interest drops to $543 and principal rises to $721 per payment. This front-loaded interest structure means early extra payments have the greatest impact on total cost.
Making just one extra payment per year on a 30-year mortgage can shave off 4-6 years and save tens of thousands in interest. Use our loan calculator to see how different terms affect your payments, or the mortgage calculator for home-specific calculations.
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Frequently Asked Questions
What is an amortization schedule?
An amortization schedule is a table showing each loan payment broken down into principal and interest portions. It shows how your balance decreases over time and how much total interest you pay.
Why does more interest go to early payments?
Interest is calculated on the remaining balance. When the balance is highest (early in the loan), interest is a larger portion of each payment. As the balance decreases, more of each payment reduces the principal.
How does extra payment affect amortization?
Extra payments toward principal reduce your balance faster, which means less interest accrues. This can shorten your loan term and save thousands in total interest.
What is the difference between amortization and simple interest?
Amortization spreads payments evenly over the loan term with interest calculated on the declining balance. Simple interest is calculated only on the original principal and does not compound.