Mortgage Payment Calculator
Calculate monthly mortgage payment, total interest paid, and full amortization summary using your loan details.
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How to use this calculator
P is the loan principal, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of monthly payments. This is the standard amortizing loan formula.
- 1
Enter the home price and your planned down payment percentage to calculate the loan amount.
- 2
Input the annual interest rate offered by your lender and select your preferred loan term.
- 3
The calculator instantly shows your monthly payment, total cost, and how much goes to interest vs principal in the first month.
Frequently asked questions
Does this include property taxes and insurance?
No. This calculator covers principal and interest (P&I) only. Your actual monthly payment to a lender often includes property taxes and homeowners insurance held in escrow, which can add $300–$600 or more per month depending on your location and home value.
How does a larger down payment affect my payment?
A larger down payment reduces your loan principal, which lowers both your monthly payment and total interest paid over the life of the loan. Putting 20% down also eliminates the need for private mortgage insurance (PMI), saving an additional $50–$200 per month.
What is amortization?
Amortization is the process of paying off a loan through scheduled, fixed payments. In the early years, most of each payment goes toward interest. Over time, more goes toward reducing the principal. This calculator shows you the first month breakdown as a starting point.
Calculate Your Mortgage Payment Before You Buy
How to use the mortgage payment
Use this mortgage payment to onthly mortgage payment, total interest paid, and full amortization summary using your loan details. Enter your values above and get your result in seconds. The tool is free, works on all devices, and keeps your data private — nothing is stored or shared.
How the mortgage payment works
The mortgage payment calculator uses standard formulas used in property investment analysis, mortgage planning, and real estate decisions. Enter your inputs, and the tool calculates the result instantly in your browser. No server-side processing means your data stays on your device. Results update in real time as you change inputs.
Understanding Your Monthly Mortgage Payment
Your monthly mortgage payment depends on four key factors: the loan amount (home price minus down payment), the interest rate, and the loan term. The standard amortization formula spreads your payments evenly so you always pay the same amount each month, though the split between interest and principal changes every payment. Early in the loan, the majority goes to interest — this shifts gradually toward principal over time.
Choosing the Right Loan Term
A 30-year mortgage offers the lowest monthly payment but results in paying significantly more interest over the life of the loan. A 15-year mortgage cuts your repayment period in half and saves tens of thousands in interest, but requires a higher monthly payment. Many borrowers choose 20 or 25-year terms as a middle ground. Use this calculator to compare terms and find the balance that fits your budget and financial goals.
Mortgage payment: how it works
This free tool saves time and reduces the chance of manual errors. Enter your values, get an instant result, and use it as a starting point for further analysis or professional consultation.
Who uses this tool?
Anyone who needs a fast, reliable answer uses this tool as a first step. It is designed to be accessible to non-specialists while accurate enough to trust for most everyday purposes.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →