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Mortgage Calculator - Calculate Monthly Payments & Interest | Bryxo

Calculate your monthly mortgage payment, total interest, and complete amortization schedule. Free calculator for FHA, VA, and conventional home loans.

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Reference rates: 3%–13% annual according to loan type, term, and credit profile.

Enter a rate between 0 and 100.

Months

Enter a term between 12 and 360 months.

You will be able to download your result in PDF or share it easily.

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Loan Type—
Loan Amount—
Annual Rate (APR)—
Loan Term—
Total to Pay—
Total Interest—

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This result recalculates instantly if you change any data in the form.

Try different loan amounts, rates, or terms to compare your monthly payment in various scenarios.

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What Is a Mortgage Calculator?

A mortgage calculator is a financial tool that helps you estimate your monthly home loan payments, total interest, and complete amortization schedule before purchasing a property. Whether you're a first-time homebuyer or looking to refinance, this calculator shows you exactly how much you'll pay each month and over the life of your mortgage.

In the United States, understanding your mortgage options is crucial before making one of the largest financial decisions of your life. Lenders consider your credit score, income, debt-to-income ratio, and down payment amount to determine your eligibility and interest rate. This calculator helps you prepare by showing you different scenarios based on loan amount, interest rate (APR), and loan term.

How Does a Mortgage Calculator Work?

This mortgage calculator uses the standard amortization formula to calculate fixed monthly payments. The formula considers three main factors: the principal (home loan amount), the annual interest rate (APR), and the loan term in months.

The Amortization Formula

The monthly mortgage payment is calculated using the amortization formula: M = P × [i(1+i)^n] / [(1+i)^n - 1], where M is the monthly payment, P is the principal (home loan amount), i is the monthly interest rate (annual rate divided by 12), and n is the total number of payments (loan term in months).

How the Results Are Calculated

Each monthly mortgage payment consists of two parts: interest and principal. At the beginning of the loan, a larger portion of your payment goes toward interest. As you pay down the principal, more of each payment goes toward reducing the loan balance. This is called an amortization schedule, and our calculator shows you the complete breakdown month by month.

Types of Mortgages in the United States

Conventional Loans

Conventional mortgages are the most common type of home loan in the US. They typically require a 20% down payment to avoid private mortgage insurance (PMI). Credit score requirements usually start at 620, though 740+ gets the best rates. Loan limits vary by county, with conforming loan limits set by Fannie Mae and Freddie Mac. Standard terms are 15, 20, or 30 years.

FHA Loans

FHA (Federal Housing Administration) loans are government-backed mortgages designed to help first-time homebuyers and those with lower credit scores. They require as little as 3.5% down payment and accept credit scores as low as 580 (or 500 with 10% down). FHA loans require mortgage insurance premiums (MIP) for the life of some loans. These are ideal for buyers with limited savings or less-than-perfect credit.

VA Loans

VA (Veterans Affairs) loans are available to eligible veterans, active-duty service members, and surviving spouses. They offer 0% down payment, no PMI requirement, and competitive interest rates. Credit score requirements are more flexible than conventional loans. These are one of the best mortgage options available for those who qualify.

Jumbo Loans

Jumbo loans are for home purchases that exceed conforming loan limits (typically $726,200 in most US counties, higher in high-cost areas). They require larger down payments (usually 10-20%), higher credit scores (700+), and more stringent documentation. Interest rates may be slightly higher than conforming loans.

Factors That Affect Your Mortgage Payment

Home Price and Down Payment

The home price and down payment directly impact your loan amount. A larger down payment reduces the financed amount, lowering both your monthly payment and total interest. In the US, putting 20% down on a conventional mortgage avoids PMI, which can save you hundreds per month.

Interest Rate (APR)

The Annual Percentage Rate (APR) represents the total cost of borrowing, including interest and certain fees. Even small differences in APR can significantly affect your total cost over 30 years. In the US, your credit score is a major factor - scores of 740+ typically get the best rates, while scores below 620 may face higher rates or require FHA/VA loans.

Loan Term

The loan term is the period over which you repay the mortgage. A 30-year mortgage has lower monthly payments but costs more in total interest. A 15-year mortgage has higher payments but saves thousands in interest and builds equity faster. Choose based on your budget and long-term financial goals.

Property Taxes and Insurance

Your total monthly housing payment (PITI) includes principal, interest, property taxes, and homeowners insurance. Lenders often collect taxes and insurance as part of your monthly payment through an escrow account. Property taxes vary by location and can add $1,000-$5,000+ annually to your housing costs.

How to Use This Mortgage Calculator

  1. Enter Home Loan Amount: Input the total amount you need to borrow (home price minus down payment)
  2. Set Interest Rate: Use the APR provided by lenders or reference rates shown
  3. Choose Loan Term: Select 15 or 30 years (or enter custom term in months)
  4. Calculate: Click "Calculate Mortgage Payment" to see your monthly payment, total interest, and complete amortization schedule
  5. Analyze Results: Review the monthly payment, total cost, and download or share your results

Understanding Your Mortgage Results

After calculating, you'll see a detailed breakdown including your monthly mortgage payment amount, total amount to be paid over the loan term, and total interest paid. The amortization table shows how each payment is split between interest and principal, and how your remaining balance decreases over time.

Total Cost of Homeownership

The total cost of your mortgage includes the principal plus all interest payments. For example, a $300,000 home loan at 6.5% APR for 30 years has a monthly payment of approximately $1,896 and a total cost of about $682,000, meaning you pay $382,000 in interest over 30 years. This doesn't include property taxes, insurance, or HOA fees.

Tips for Getting Better Mortgage Terms

  • Improve your credit score before applying - even a 20-point increase can save you thousands over the loan term
  • Save for a larger down payment - 20% down on conventional loans avoids PMI
  • Shop around - compare rates from at least 3-5 lenders (banks, credit unions, online mortgage companies)
  • Consider FHA or VA loans if you qualify - they offer lower down payment requirements
  • Get pre-approved before house hunting to understand your budget and show sellers you're serious
  • Factor in closing costs - typically 2-5% of the loan amount, due at closing

Important Disclaimers

This mortgage calculator provides estimates for educational and planning purposes only. Actual mortgage terms, interest rates, and approval decisions depend on each lender's underwriting criteria, your complete financial profile, property appraisal, and current market conditions. This tool does not constitute financial advice, a loan offer, or a guarantee of approval. Always verify terms directly with your chosen financial institution before signing any mortgage agreement.

Last updated: August 2026

Frequently Asked Questions About Mortgage Calculators

How accurate is this mortgage calculator?

This mortgage calculator provides highly accurate estimates based on the standard amortization formula used by US lenders. The monthly payment, total interest, and amortization schedule calculations are precise. However, actual mortgage terms may vary slightly due to lender-specific fees, property taxes, insurance, and exact day-count conventions. Always confirm final terms with your lender.

What credit score do I need to buy a house?

Credit score requirements vary by loan type. For conventional mortgages, you typically need a score of 620 or higher, though 740+ gets the best rates. FHA loans accept scores as low as 580 (or 500 with 10% down). VA loans have more flexible requirements for eligible veterans. Improving your score by even 20-30 points can significantly reduce your mortgage rate and save thousands over the loan term.

How much down payment do I need for a house?

Down payment requirements vary by loan type. Conventional mortgages typically require 20% down to avoid PMI, though some programs allow as low as 3-5%. FHA loans require as little as 3.5% down. VA loans for eligible veterans require 0% down. USDA loans for rural properties also offer 0% down. Larger down payments reduce your loan amount, monthly payment, and total interest paid.

What is PMI and when do I need it?

PMI (Private Mortgage Insurance) is required when you put less than 20% down on a conventional mortgage. It protects the lender if you default on the loan. PMI typically costs 0.5% to 1% of the loan amount annually, added to your monthly payment. You can cancel PMI once you reach 20% equity in your home. FHA loans have different mortgage insurance requirements (MIP) that may last for the life of the loan.

Should I choose a 15-year or 30-year mortgage?

Choose based on your financial situation. A 15-year mortgage has higher monthly payments but saves thousands in interest and builds equity faster. A 30-year mortgage provides lower monthly payments, making them more affordable month-to-month, but costs more in total interest. Consider your budget, retirement timeline, and financial goals. Many financial advisors recommend the shortest term you can comfortably afford.

What are the differences between FHA, VA, and conventional loans?

Conventional loans are traditional mortgages not backed by the government, typically requiring 20% down and 620+ credit score. FHA loans are government-backed, requiring only 3.5% down and accepting scores as low as 580, but require mortgage insurance. VA loans are for eligible veterans, offering 0% down, no PMI, and flexible credit requirements. Each has different eligibility requirements, down payment minimums, and credit score requirements.

What are closing costs and how much are they?

Closing costs are fees paid at the end of a real estate transaction, typically 2-5% of the loan amount. They include loan origination fees, appraisal fees, title insurance, attorney fees, property taxes, homeowners insurance, and recording fees. For a $300,000 mortgage, expect to pay $6,000-$15,000 in closing costs. Some costs can be rolled into the loan, but this increases your monthly payment and total interest.

Can I pay off my mortgage early?

Most mortgages allow early payoff, but check for prepayment penalties in your contract. Federal law prohibits prepayment penalties on mortgages after 2014. Even without penalties, contact your lender to ensure extra payments are applied to principal, not future payments. Making bi-weekly payments or paying extra toward principal can shave years off your mortgage and save tens of thousands in interest.

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