Frequently Asked Questions

An amortization schedule is a detailed table that shows every loan payment over time. It breaks down each payment into principal (the amount you borrowed) and interest (the cost of borrowing). Early in the loan, most of your payment goes toward interest, but as time goes on, more goes toward principal.

The monthly payment is calculated using the loan amortization formula: M = P × [r(1+r)^n] / [(1+r)^n - 1], where M is the monthly payment, P is the principal, r is the monthly interest rate, and n is the number of payments. This formula ensures that the loan is paid off completely after the specified term.

APR stands for Annual Percentage Rate. It's the yearly cost of a loan, expressed as a percentage. For example, a 6% APR means you pay 6% of the loan amount per year in interest. Our calculator divides this by 12 to get the monthly interest rate.

Yes! You can make extra principal payments to pay off your loan faster and save money on interest. Our calculator allows you to specify a monthly extra payment amount, and it will show you how this affects your amortization schedule and total interest paid. Try our dedicated Extra Payment Calculator for a detailed breakdown of your savings.

The savings depend on how much extra you pay. Our Extra Payment Calculator shows the exact impact by adjusting the amortization schedule and calculating the new payoff date. Generally, any extra payment goes directly toward principal and reduces the total interest you'll pay over the life of the loan.

No. All calculations happen locally in your browser. We don't store, track, or send your financial information to any server. Your privacy is completely protected. This is a core principle of our service.

Yes! Our calculator works for any amortizing loan, including mortgages, auto loans, personal loans, student loans, and more. Just enter the loan amount, interest rate, and term, and we'll calculate your payments instantly.

If your loan has a variable or adjustable interest rate, you'll need to recalculate with the new rate. Our calculator assumes a fixed interest rate. For variable rate loans, you can calculate different scenarios to understand the potential impact of rate changes.

Our calculator uses industry-standard amortization formulas and is accurate to the cent. However, some lenders may use slightly different calculation methods or include additional fees. Always verify final numbers with your lender before making financial decisions.

Yes! Click the "Export to CSV" button on the calculator to download your complete amortization schedule. You can open this file in Excel, Google Sheets, or any spreadsheet application for further analysis or record-keeping.

Amortization is the process of spreading a loan into a series of fixed payments over time. Each payment covers both interest and principal. In the early payments, a larger portion goes toward interest. As you pay down the principal balance, the interest portion decreases and more of each payment reduces the amount you owe. This is how amortization works for mortgages, auto loans, personal loans, and student loans.

There are several strategies to pay off your mortgage faster. Making biweekly mortgage payments instead of monthly ones results in 26 half-payments per year, which equals 13 full payments instead of 12. You can also make extra principal payments each month, apply windfalls like tax refunds to your balance, or refinance to a shorter loan term such as 15 years instead of 30 years. Even small extra payments can save tens of thousands of dollars in interest over the life of your loan. Use our Extra Payment Calculator to see the exact impact, or our Refinance Calculator to compare new loan terms.

A 15 year mortgage has higher monthly payments but a significantly lower total interest cost compared to a 30 year mortgage. For example, on a $300,000 loan at 6.5%, a 30-year term results in about $382,000 in total interest, while a 15-year term costs only about $170,000 in interest — saving you over $212,000. However, the 30-year mortgage offers lower monthly payments, giving you more flexibility in your budget. Use our calculator to compare both scenarios side by side.

A biweekly mortgage calculator shows you the savings from making half your monthly mortgage payment every two weeks instead of one full payment per month. Because there are 52 weeks in a year, this results in 26 half-payments — equivalent to 13 full monthly payments per year instead of 12. That one extra payment per year can shave years off your mortgage and save thousands in interest. Our calculator can help you model the impact of this strategy on your specific loan.

To calculate your monthly mortgage payment, you need three numbers: the loan amount (principal), the annual interest rate, and the loan term in years. The standard formula is M = P × [r(1+r)^n] / [(1+r)^n – 1], where P is the principal, r is the monthly interest rate (annual rate divided by 12), and n is the total number of payments (years multiplied by 12). For a $250,000 mortgage at 6% for 30 years, the monthly payment would be approximately $1,499. Use our free calculator for instant, accurate results.