Comparing only principal and interest
Borrowers often ignore taxes, insurance, HOA fees, and PMI, which can materially change the true monthly housing payment.
Mortgage Payment Calculator
Calculate monthly mortgage payments for home loans with various amounts, rates, and terms.
Popular Mortgage Scenarios
$200,000.00
5% 路 30 years
$200,000.00
6% 路 30 years
$200,000.00
7% 路 30 years
$250,000.00
5% 路 30 years
$250,000.00
6% 路 30 years
$250,000.00
7% 路 30 years
$300,000.00
5% 路 30 years
$300,000.00
6% 路 30 years
$300,000.00
7% 路 30 years
$350,000.00
5% 路 30 years
$350,000.00
6% 路 30 years
$350,000.00
7% 路 30 years
$400,000.00
5% 路 30 years
$400,000.00
6% 路 30 years
$400,000.00
7% 路 30 years
$500,000.00
5% 路 30 years
$500,000.00
6% 路 30 years
$500,000.00
7% 路 30 years
$600,000.00
5% 路 30 years
$600,000.00
6% 路 30 years
$600,000.00
7% 路 30 years
$200,000.00
4.5% 路 30 years
$200,000.00
5.5% 路 30 years
$200,000.00
6.5% 路 30 years
About Mortgage Payments
Your monthly mortgage payment depends on three key factors: the loan amount, interest rate, and loan term. Most mortgages use a fixed-rate amortization schedule where you pay the same amount each month, although what portion goes to principal versus interest shifts over time.
Each payment is split between principal (reducing your loan balance) and interest (the cost of borrowing). In the early years, the majority of each payment goes toward interest. As your balance decreases, the principal portion grows. This is why building equity in a home is slow at first but accelerates toward the end of the loan.
Common mortgage terms are 15 and 30 years. A 15-year mortgage has significantly higher monthly payments but saves tens of thousands in interest over the life of the loan. A 30-year mortgage keeps monthly costs manageable but results in more total interest paid. The right choice depends on your monthly budget, financial goals, and how long you plan to stay in the home.
Key Factors That Affect Your Mortgage
Loan Amount
The total principal borrowed. A larger loan means higher monthly payments and more total interest paid over the life of the mortgage.
Interest Rate
Even a 0.5% difference in rate can mean tens of thousands of dollars over 30 years. Your rate depends on credit score, market conditions, and loan type.
Loan Term
The length of the loan in years. Shorter terms have higher monthly payments but dramatically lower total interest costs.
Down Payment
A larger down payment reduces the loan amount and may eliminate the need for private mortgage insurance (PMI), lowering your monthly costs.
Frequently Asked Questions
Mortgage payments are calculated using the standard amortization formula that factors in the loan principal, annual interest rate divided by 12 for the monthly rate, and the total number of monthly payments. This produces a fixed monthly amount that gradually shifts from mostly interest to mostly principal over the loan term.
Decision Checklist Before You Apply
- Compare offers using the same loan amount and term before changing assumptions.
- Review estimated taxes, insurance, HOA, and PMI separately from principal and interest.
- Check whether the rate is locked and how long the lock remains valid.
- Stress-test payment at a slightly higher rate if your closing is weeks away.
Common Mistakes To Avoid
Optimizing for the lowest payment only
A lower monthly payment can hide a much higher lifetime cost if the term is extended too far.
Questions To Ask Before You Borrow
- What are the estimated taxes, insurance, and PMI (if applicable)?
- How long is the quoted rate lock valid, and what are lock extension costs?
- What fees are included in APR versus charged separately?
- Is there any prepayment penalty or restriction on extra principal payments?
- What assumptions could change the final payment before closing/funding?
Sources & Consumer Resources
CFPB: Owning a Home
Mortgage shopping, closing, and payment guidance.
HUD: Homebuying resources
Government resources for buyers and housing counseling.
CFPB: Consumer finance guidance
General borrower education and consumer protections.
Our methodology and editorial standards
Explains assumptions, scope, and review process for these calculators.
Editorial Review
Reviewed by: PayCalc Editorial Team
Last reviewed: 2026-02-20
Review cadence: Quarterly review or when assumptions change
About This Calculator
Our mortgage payment calculator uses the standard amortization formula to compute fixed monthly payments. Enter any loan amount, interest rate, and term to see your estimated payment, total interest, and a full month-by-month amortization schedule.
Results are for informational purposes only and do not include property taxes, homeowner's insurance, HOA fees, or PMI. Always consult a qualified lender for actual loan terms.