Mortgage Loan Calculator: Free Monthly Payment

This free mortgage loan calculator turns a loan amount, interest rate, loan term and optional down payment into your monthly payment, total interest and total cost. It also shows a 24-month amortization schedule. Home buyers, car shoppers and anyone comparing a fixed-rate loan can use it to test numbers before talking to a lender.

What Is a Mortgage Loan Payment and How Is It Calculated?

A mortgage loan payment is the fixed amount you pay each month to repay borrowed money plus interest over a set number of years. Early payments are mostly interest, and later payments are mostly principal. That gradual shift is called amortization.

The calculator uses the standard fixed-rate formula: payment = P × r × (1 + r)^n / ((1 + r)^n - 1). P is the amount you borrow, r is the monthly rate (the annual rate divided by 12), and n is the number of monthly payments (years times 12). If you enter a 0% rate, the loan is simply divided by the number of months.

How does this relate to home loan EMI?

EMI stands for equated monthly installment, the term many borrowers in India and other countries use for the same fixed monthly payment. If you have wondered how to calculate home loan EMI, the formula above is the answer, and the Monthly Payment result gives you the figure without any manual math.

How to Use the Mortgage & Loan Calculator

You need four numbers, and only the first three are required. Follow these steps:

1. Type the price or total amount in Loan Amount ($). For a home purchase, enter the full price, before your down payment.
2. Enter the rate in Annual Interest Rate (%). Type 6.5 for 6.5%, not 0.065.
3. Enter the length of the loan in Loan Term (years). The field accepts 1 to 50 years.
4. If you are paying cash upfront, add it to Down Payment ($, optional). Leave it empty for no down payment.
5. Click Calculate Payment.
6. Read the four result boxes, then open Amortization Schedule (first 24 months) to see how each payment splits between principal and interest.

If you change any field after calculating, the old result is hidden so you never read stale numbers. Click Calculate Payment again to refresh it.

Worked Example: A $300,000 Home With 20% Down

Suppose a home costs $300,000, you put $60,000 down, and the lender offers 6.5% on a 30-year loan. Enter 300000, 6.5, 30 and 60000, then click Calculate Payment. The results look like this:

• Loan Amount: $240,000.00 (price minus down payment)
• Monthly Payment: about $1,516.96
• Total Cost: about $546,107 (360 payments added together)
• Total Interest: about $306,107

Open the schedule and check month 1. Interest is $240,000 × (0.065 ÷ 12) = $1,300.00, so only $216.96 of the first payment reduces the balance, which drops to $239,783.04. Roughly 14% of the first payment goes to principal.

Two quick comparisons

Remove the down payment and the monthly payment rises to about $1,896.20, which is $379.24 more each month. Go back to $60,000 down but change the term to 15 years and the payment becomes about $2,090.66. That is about $573.70 more per month, but total interest falls to roughly $136,300, saving close to $170,000.

How Do You Read and Act on the Results?

Each result box answers a different question, and together they show whether a loan fits your budget and your long-term plan.

Total Cost does not include your down payment, so add it back if you want the full amount spent on the purchase.

What does a good result look like?

A common rule of thumb is to keep total housing costs near 28% of gross monthly income, though lenders apply their own limits. If your Monthly Payment alone eats most of that, try a larger down payment, a longer term or a lower price. If Total Interest is higher than the Loan Amount, as in the example above, the term is doing a lot of the damage. Test a shorter term to see the trade-off.

What does the amortization schedule show?

The schedule lists month, payment, principal, interest and remaining balance for the first 24 months. Use it to see how slowly the balance falls early on. That is why extra principal payments made early save more interest than the same payments made late.

Who Is This Calculator For?

Anyone who needs a quick estimate for a fixed-rate loan with equal monthly payments can use it. Typical situations include:

• First-time buyers testing how a bigger down payment changes the payment.
• Refinancers entering the remaining balance, a new rate and the remaining years to compare against today's payment.
• Car and personal loan shoppers checking a dealer or bank offer against the numbers.
• Agents and advisors giving clients a fast, shareable estimate during a conversation.
• Anyone with a 0% promotional loan, since entering a rate of 0 splits the loan evenly across all months.

If you collect several lender quotes, the average calculator helps you find the typical rate or payment. You can also use the age calculator to see how old you will be when your final payment is due. For more everyday math, browse the Online Calculators & Utilities hub.

Best Practices, Common Mistakes and Troubleshooting

Most surprising results come from one of a few input slips, and each has a quick fix.

• Subtracting the down payment twice. The Loan Amount field should hold the full price. The calculator subtracts the down payment for you.
• Typing the rate as a decimal. Enter 6.5, not 0.065. A rate that is too small gives a payment that looks too good to be true.
• Entering months as years. A 30-year loan is 30, not 360.
• Seeing the message "Please fill in loan amount, rate, and term." One of the three required fields is empty or zero. Enter 0 in the rate field for an interest-free loan.
• Seeing "Down payment must be less than the loan amount." The down payment equals or exceeds the amount you entered, so nothing is left to borrow. Check for an extra zero.
• Comparing too many changes at once. Change one input at a time, such as the rate or the term, so you can see which one moves the payment most.

Your lender's figure may differ from yours by a few cents because of rounding conventions. Larger gaps usually mean the lender included extra costs, covered in the next section.

What Are the Limitations of This Estimate?

The calculator shows principal and interest only, so treat the result as a starting point rather than a loan offer.

• It does not include property tax, homeowners insurance, private mortgage insurance, HOA dues or closing costs.
• It assumes a fixed rate for the full term, so it does not model adjustable-rate loans.
• There is no extra-payment field. To approximate paying extra, rerun the numbers with a shorter term.
• The schedule displays the first 24 months, not the full payoff table.
• Results are formatted with a dollar sign. If your loan is in another currency, the numbers still work, so just ignore the symbol.

You now have what you need to compare loan scenarios in a few seconds. Enter your own loan amount, rate, term and down payment in the calculator on this page, click Calculate Payment, and use the results to decide what monthly payment you can comfortably carry.