15 Year Mortgage Loan Calculator

Use this 15-year mortgage loan calculator to estimate your monthly payments, total interest, and loan amortization schedule. A 15-year mortgage offers lower monthly payments compared to a 30-year mortgage, but requires higher payments upfront.

How to Use This Calculator

Enter your loan amount, interest rate, and down payment to calculate your monthly payments. The calculator shows your estimated monthly payment, total interest paid, and total cost of the loan.

Formula Used

The monthly payment is calculated using the standard mortgage formula:

M = P [i(1 + i)^n] / [(1 + i)^n - 1]

Where:

M = Monthly payment
P = Principal loan amount (Loan Amount - Down Payment)
i = Monthly interest rate (Annual Rate / 12)
n = Number of payments (15 years × 12 = 180)

Example Calculation

For a $200,000 loan at 4.5% interest with a $40,000 down payment:

Principal = $200,000 - $40,000 = $160,000
Monthly rate = 4.5% / 12 = 0.375%
Number of payments = 15 × 12 = 180
Monthly payment = $1,234.56
Total interest = $108,678.08
Total cost = $268,678.08

How a 15-Year Mortgage Works

A 15-year mortgage is a home loan that is repaid over 15 years instead of the more common 30-year term. This shorter repayment period results in lower monthly payments but requires higher payments upfront.

Advantages of a 15-Year Mortgage

Lower monthly payments compared to a 30-year mortgage
Potential tax benefits from interest deductions
Faster payoff of the loan
Opportunity to build equity more quickly

Disadvantages of a 15-Year Mortgage

Higher total interest paid over the life of the loan
More sensitive to interest rate changes
May require larger down payment
Less time to build equity if you plan to sell or refinance

Note: A 15-year mortgage may not be suitable for everyone. Consider your financial situation and long-term goals before choosing this option.

15-Year vs. 30-Year Mortgages

Compare the key differences between a 15-year and 30-year mortgage to help you decide which option is right for you.

Feature	15-Year Mortgage	30-Year Mortgage
Term Length	15 years	30 years
Monthly Payments	Lower	Higher
Total Interest Paid	Higher	Lower
Equity Build-Up	Faster	Slower
Refinancing Options	Less flexible	More flexible

Frequently Asked Questions

What is a 15-year mortgage?: A 15-year mortgage is a home loan that is repaid over 15 years instead of the more common 30-year term. It offers lower monthly payments but requires higher payments upfront.
How do I qualify for a 15-year mortgage?: Qualifying for a 15-year mortgage is similar to qualifying for a 30-year mortgage. Lenders will consider your credit score, income, debt-to-income ratio, and down payment amount.
What are the benefits of a 15-year mortgage?: The benefits of a 15-year mortgage include lower monthly payments, potential tax benefits from interest deductions, faster payoff of the loan, and opportunity to build equity more quickly.
What are the drawbacks of a 15-year mortgage?: The drawbacks of a 15-year mortgage include higher total interest paid over the life of the loan, more sensitivity to interest rate changes, and less time to build equity if you plan to sell or refinance.
Can I refinance a 15-year mortgage?: Yes, you can refinance a 15-year mortgage, but it may be more difficult and expensive than refinancing a 30-year mortgage. You may need to meet stricter eligibility requirements and pay higher closing costs.