Mortgage Interest Calculator - Monthly Payment & Total Interest Calculator

Mortgage Interest Calculator

Calculate monthly payments, total interest & loan amortization

Enter Loan Details
Loan Amount ($)
Interest Rate (%)
Loan Term (Years)
Monthly payment calculated using standard mortgage formula. Rate is annual percentage (APR).
Your Mortgage Breakdown
Monthly Payment
$1,610.46
Total Payment
$579,767.04
Total Interest
$279,767.04
Loan Amount $300,000.00
Interest Rate 5.00%
Loan Term 30 years
Number of Payments 360
Monthly Payment $1,610.46
Total Payment $579,767.04
Total Interest $279,767.04
First Year Summary
Common Loan Scenarios
Mortgage Formula
Uses standard amortization formula for accurate monthly payments and interest calculations.
Visual Breakdown
See loan amount vs total interest with interactive pie chart visualization.
Total Cost Analysis
Know exactly how much you'll pay in interest over the life of your loan.

Frequently Asked Questions

How is monthly mortgage payment calculated?
Monthly payment = P * (r(1+r)^n) / ((1+r)^n - 1) where P = loan amount, r = monthly interest rate, n = total months.
What is included in total interest?
Total interest is the sum of all interest payments over the life of the loan. It's the difference between total payments and loan amount.
Does this include property tax and insurance?
No, this calculator focuses on principal and interest only. Property tax and insurance would be additional monthly costs.
What's a good interest rate?
Rates vary based on market conditions, credit score, and loan type. Current rates typically range from 3% to 7% for mortgages.
How can I reduce total interest?
Make extra principal payments, choose a shorter loan term, or secure a lower interest rate to reduce total interest paid.
Is this calculator free?
Yes! 100% free. No registration, no hidden costs. Use it for all your mortgage calculations.
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Mortgage Interest Calculator - Know Your True Loan Cost

Our Mortgage Interest Calculator PRO helps you understand the true cost of your home loan. Calculate monthly payments, see total interest paid over the life of the loan, and visualize the breakdown between principal and interest.

How it works: Enter your loan amount, interest rate, and loan term in years. The calculator instantly shows your monthly payment, total payment, and total interest. The pie chart shows the proportion of loan amount vs interest.

Perfect for: Home buyers, real estate investors, financial planners, refinancing decisions, and anyone wanting to understand mortgage costs before signing.