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Mortgage Calculator

Calculate your monthly mortgage payment, total interest paid, and see a full amortization breakdown. Supports any currency, loan term, and interest rate.

Currency
Home Price$400,000
$
$50k$2M
Down Payment20%
%
0%50%
Annual Interest Rate6.5%
%
1%15%
Loan Term
monthly payment
Home price
Down payment
Loan amount
Monthly payment
Total payments
Total interest
Interest to loan ratio
Amortization Summary
Principal Interest
Frequently Asked Questions
How is a mortgage payment calculated?

Monthly payment = Loan × (r × (1+r)^n) / ((1+r)^n - 1), where r is the monthly interest rate and n is the number of payments. This calculator does it automatically for any loan size and term.

How much house can I afford?

A common rule is your mortgage payment should not exceed 28% of gross monthly income. For a $6,000/month income, the maximum payment is $1,680. Lenders also look at total debt-to-income ratio below 43%.

What is the difference between a 15-year and 30-year mortgage?

A 15-year mortgage has higher monthly payments but pays roughly half the total interest of a 30-year. A 30-year has lower monthly payments but costs significantly more over the life of the loan.

What is amortization?

Amortization is the process of paying off debt through regular payments. Early payments are mostly interest. As the loan ages, more of each payment goes to principal. This calculator shows the principal-to-interest ratio.

How does down payment affect my mortgage?

A larger down payment reduces your loan amount, lowers monthly payments, reduces total interest paid, and eliminates Private Mortgage Insurance (PMI) if you put down 20% or more.

What is a good mortgage interest rate?

Rates vary by country and economic conditions. In the US, 6-7% was typical in 2024-2025. In India, home loan rates were 8.5-9.5%. Use this calculator to compare different rate scenarios.

How much interest will I pay over 30 years?

On a $300,000 loan at 7% for 30 years: monthly payment = $1,996. Total paid = $718,560. Total interest = $418,560 — more than the original loan amount.

What is the effect of making extra mortgage payments?

Each extra payment reduces principal, which reduces future interest charges. Even one extra payment per year can cut years off a 30-year mortgage and save tens of thousands in interest.