Mortgage & real estate

Simple Mortgage Calculator

Enter the loan amount, interest rate and term to see your monthly principal and interest payment.

  • Free
  • No sign-up
  • Updated for 2026

Loan amount, rate & term

$
%
yr
Add extra payments
$

per month

Enter the loan amount, rate and term to see the monthly payment.

Worked example

With these example inputs:

  • Loan amount$300,000
  • Interest rate6.5%
  • Loan term30 yr

Monthly payment: $1,896

  • Loan amount$300,000
  • Total interest$382,633
  • Total of payments$682,633
  • Payoff time30 yr

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What this simple mortgage calculator does

This calculator finds your monthly mortgage payment. You enter the loan amount, rate, and term. The tool shows the payment in the currency you choose. It can also factor in an extra payment. This is a simple, no-frills tool. You can plug in other values. The result helps you plan a home loan.

What a mortgage payment is

A mortgage payment is your fixed monthly cost to repay the loan. It covers principal and interest over the term. The same amount is due each month. By the end the loan is fully repaid. It is a core part of any budget. It is paid monthly. It appears in the currency you choose.

How it is calculated

The tool takes your loan amount. It spreads it over the term in equal payments. It adds interest at your rate each month. The payment is set so the loan ends at zero. An extra payment shortens the term. The calculator does this for you.

What the result tells you

The result shows your monthly payment. Take three hundred thousand at six and a half percent. Over thirty years it costs about nineteen hundred a month. A higher rate or amount raises it. A longer term lowers each payment. So it shows what you must pay. It is a clear monthly figure.

Principal and interest

Each payment splits into principal and interest. Principal pays down what you borrowed. Interest is the cost of the loan. Early payments are mostly interest. Later ones are mostly principal. So the split shifts over time. This is how a loan amortizes.

The effect of the rate

The rate drives the cost of a loan. A higher rate lifts every payment. It also adds to the total interest. Even a small rate change adds up. So shopping for a low rate pays off. A lower rate frees up cash. Compare a few rates before you sign.

Making extra payments

An extra payment goes straight to principal. So it shrinks the balance faster. That cuts the interest you pay. It can also end the loan early. Even a small extra helps over time. So pay more when you can. It is a simple way to save.

How to use it

Enter the loan amount first. Add the rate and term. Read your monthly payment in your currency. Add an extra payment to see the effect. Then change an input and retry. Compare a few terms. Use it to plan a home loan.

The limits of this calculator

This tool comes with limits. It assumes a fixed rate for the term. It does not include taxes or insurance. Some loans carry fees or points. A variable rate can change the payment. So treat it as a guide here. So use it thoughtfully.

Common mistakes to avoid

A common mistake is ignoring the total interest. A low payment can still cost a lot. Another is leaving out taxes and insurance. Those add to the real monthly cost. Some pick the longest term by default. Others forget about fees. A clear view avoids these traps.

A final tip

Use this to plan your home loan. Remember the payment covers principal and interest. Watch how the rate and term move it. Budget for taxes and insurance too. Pay a little extra when you can. Do not pick a term too long. A careful check guides your view.

Frequently asked questions

How is a mortgage payment calculated?

The loan amount, monthly interest rate and number of payments feed a standard amortization formula. A $300,000 loan at 6.5% over 30 years costs about $1,896 a month in principal and interest.

Does this include taxes and insurance?

No, it covers only principal and interest. Property tax, homeowners insurance and any HOA dues are added on top in your actual monthly housing cost.