Best Home Mortgage Loan Calculator

Home mortgage loan calculators are essential tools for anyone who is considering buying a home. These calculators can help you estimate your monthly mortgage payments, compare different loan options, and determine how much you can afford to borrow.

By using a home mortgage loan calculator, you can make informed decisions about your home purchase.

What is a home mortgage loan calculator?

A home mortgage calculator is an online tool that allows you to estimate your monthly mortgage payments under different home loan scenarios. It factors in purchase price, down payment, interest rate, loan term, taxes, insurance, and other variables.

Why is it important to use a home mortgage loan calculator?

Calculators are critical planning tools to determine affordability, compare loans, and estimate the home price and down payment you can manage. Trying different scenarios prevents taking on excessive debt and guides smart borrowing.

What are the features to look for in a home mortgage loan calculator?

The best calculators are easy to use, allow adjusting multiple variables, explain the math, provide detailed cost breakdowns, and have an intuitive interface. Advanced tools include graphs, amortization schedules, PMI estimates, and customizable reports.

List of the best home mortgage loan calculators

This guide explores the top-rated mortgage calculators available online based on accuracy, versatility, ease of use, and unique capabilities. The right calculator tailored to your needs helps demystify home financing.

Review of the best home mortgage loan calculators:

NerdWallet Mortgage Calculator

NerdWallet’s calculator allows inputting property taxes, homeowners insurance, HOA fees, mortgage term, credit score, and property location to return monthly payments and total interest estimates. It includes helpful explanations about rate tiers based on credit.

An expandable amortization schedule shows the mortgage balance declining over time. Results can be downloaded as PDF reports. The tool is easy to use with a simple interface.

Bankrate Mortgage Calculator

Bankrate has an intuitive option that calculates monthly payments, total interest costs, and amortization schedule based on loan amount, down payment, rate, zip code, and years. It compares 15-year and 30-year loans side-by-side.

Users can experiment with different down payment percentages and rates. The tool lacks Breakdown charts but has useful tips for rate optimization and down payment savings.

Zillow Mortgage Calculator

Zillow’s calculator allows inputting credit score, loan term, taxes, PMI, HOA dues, down payment percentage, and more. It shows monthly costs, principal vs. interest split, and total payments. Charts visually compare loans over time. However, it lacks amortization schedules or downloadable reports. Still a solid option for high-level estimates and payment experiments.

HSH Mortgage Calculator

HSH provides a basic but customizable tool showing monthly payments, loan balance, interest costs, and amortization tables. Users can adjust nearly all variables like loan type, points, taxes, PMI, fees, appreciation rate, etc. Results export easily to Excel. Helpful tutorials explain mortgage concepts. The many modifiable fields make it powerful but slightly advanced.

This calculator has a simple interface showing monthly and total costs based on minimal inputs like price, down payment, rate and zip code. It summarizes loan options like 15-year or 30-year fixed or adjustable rate mortgages side-by-side for easy comparison. No advanced options are available, but the clean simplicity helps beginners.

Factors to consider when choosing a home mortgage loan calculator:


The calculations should precisely estimate payments and costs based on the inputs entered. Formulas should align to industry standards without errors. Improper estimates could distort home buying decisions. Verify a calculator’s math by comparing to manual calculations or rate checker tools.

Ease of Use

An intuitive, clean interface allows buyers to easily enter details and adjust variables without confusion. Calculations should update automatically when inputs are changed. Descriptive tooltips and formatting make the process smooth for beginners. Avoid tools with complex interfaces that seem targeted only at experts.


Useful features expand a calculator’s capabilities. Amortization schedules showing the declining loan balance over time provide helpful visuals. Downloadable PDF reports allow saving and sending estimates. Advanced options like graphs, prepayment modeling, and comparison charts offer added versatility not found in basic tools.


Many robust calculators are available free online. Some advanced tools do charge modest monthly fees but may be worthwhile for frequent users. Ensure paid tools provide enhanced utility like customizable templates, client sharing, and spreadsheet integration to justify costs. Most borrowers can find suitable free tools.


Look for calculators that allow adjusting multiple variables based on your exact scenario, like interest rate, loan term, taxes, PMI, etc. More modifiable fields allow modeling different situations to find the optimal mortgage specifics before applying.

Platform Access

The ability to use mortgage calculators seamlessly on desktop and mobile devices offers convenience. Most tools are accessible via any web browser. Native iOS and Android apps may also be available for prolific users who prefer the app experience.

How to use a home mortgage loan calculator

Step 1: Enter the loan amount

The loan amount is the portion of the home’s purchase price that you will need to borrow with a mortgage loan. This is calculated by taking the purchase price of the home and subtracting your down payment amount.

Be sure to think through your desired down payment based on savings, lender requirements, and loan options. Often a 20% down payment is ideal but a lower amount may be possible.

Step 2: Enter the interest rate

Mortgage interest rates vary daily based on broader market conditions. When using a calculator, input the current average rates being offered based on your credit score and loan program.

Rates for top-tier borrowers today generally range from 3-4% for a 30-year fixed loan. Add 0.5-1% if your credit score is lower. Avoid inputting a hypothetical rate unless doing general estimates.

Step 3: Enter the loan term

The loan term is the length of the mortgage, typically 15 or 30 years. Longer terms mean lower payments but higher overall interest paid over time. Carefully consider your budget, long-term home plans, and savings goals when choosing between term options.

Step 4: Enter additional information

To get more accurate estimates, also include details like your estimated down payment amount, projected property tax rate based on the area, estimated homeowners insurance costs, and whether you must pay PMI. These additional costs get incorporated into your monthly mortgage payment calculation.

Step 5: Click “Calculate”

After inputting all the key variables, click the calculate or estimate button to have the mortgage calculator run the numbers and output your projected monthly principal and interest costs, total payment estimates, and other results.

Benefits of using a home mortgage loan calculator

Estimate Your Monthly Mortgage Payments

The top benefit of mortgage calculators is estimating the monthly principal, interest, taxes, and insurance payments you would owe based on your scenario. This helps determine if potential homes are affordable monthly over 15 or 30 years before even applying for pre-approval. You can adjust details like down payment and interest rate to find a comfortable range.

Compare Different Loan Options

By inputting the same home price and loan details but changing the rate type, term length, or down payment percentage, you can compare personalized monthly costs and total interest paid over time across multiple loan programs side-by-side. This allows identifying the ideal mortgage structure for your budget.

Determine How Much You Can Afford to Borrow

Mortgage calculators help home buyers establish their maximum affordable purchase price based on income, debts, and desired monthly housing payments. By slowly increasing the mortgage amount and taxes until monthly costs exceed your target, you can back into the optimal loan and home price you can comfortably manage.

Make Informed Home Buying Decisions

The overall benefit is using estimates from mortgage calculators to guide prudent home buying decisions. You can assess affordability, find homes in your range, and make sound financing choices using the calculator’s personalized data illustrating costs. This prevents overborrowing beyond your means.


In summary, applying mortgage calculators early in your home shopping process is crucial. Having accurate estimates of potential monthly payments, total interest costs, and amortization empowers you to find a home priced within your budget.

Comparing mortgage structures also allows identifying the ideal loan terms and strategy. By inputting different down payments and interest rates, you can observe the savings and cost impact of improving your credit score and down payment amount before applying.

Using these powerful estimation tools prevents unpleasant surprises and provides peace of mind that your home purchase is financially sound. We recommend trying several trusted mortgage calculators to become familiar with the process and leverage the customized insights they provide.