Simple Mortgage Calculator Basic Guide

Simple Mortgage Calculator

A simple mortgage calculator helps you in computing mortgage payment summary with essential variables based on which mortgage agreements made. One can easily calculate the impact of changes in one or more variables on financial out-turn. A simple calculator considers only essentials variables like down-payment, interest rate, loan term, etc. but an advanced calculator can also calculate other monthly or yearly taxes and payments along with the mortgage amount e.g., local real estate tax and property insurance.

There are various software and websites which can calculate mortgage loan. Some tangible calculators are also available in the market for financial implications such as BA-II Plus by Texas Instruments and HP-12 C by Hewlett Packard.

mortgage calculator

Mortgage Loan

The load, which is raised mainly for purchasing real estate with a lien on real property in return, is known as a mortgage loan, and this legal agreement between borrower and lender is known as a mortgage.

A mortgage loan is mainly termed as a loan by banks and other financial assisting institutes. The mortgage loan is different from the conventional study loan and personal loan.

 As in mortgage loan, the interest rate is set as per the current market, but in other investments like education load, the interest rate is as per the market when you started paying back like 4-5 years after.

Mortgage Load Scenarios

There can be two scenarios for a mortgage loan;

First Scenario: Funding Raising for Purchasing Real Property

In this first scenario, the borrower wants to buy a real estate property, but he doesn’t have much money. He then goes to the bank for a mortgage loan. In the first step, the borrower has equity as per the percentage of the Amount he deposited as a down-payment.

The remaining Amount then took as debt from the bank or financial institute to equal the amount of purchase. The borrower has to pay a fixed interest rate every year. After paying off the loan for the entire amortization period, the borrower can own the whole real property alone. 

Second Scenario: Fund Raising Against Owned Property

In this scenario, the borrower needs money for other purposes like a wedding or medical emergency. To fulfill his need, he puts his constructed property such as a house or a commercial building on the lien, and then in return, bank or financial institute bears all his expenses. There is a fixed amount needed to be paid back to the bank every month or year as per agreement. 

If you miss the debt to pay back on time, the bank has full authority to take the possession of that property. This is used as collateral in the legal agreement between the borrower and the lender.

Advantages of Mortgage

  • The mortgage is the best alternative of paying your house rent to the property owner and nothing yours at the end. Every debt payment adds some equity to a borrower in the property. Less the debt, more the equity borrower own.
  • A simple mortgage calculator can help you calculate the monthly cost that you have to bear for owning a house or any other property.
  • Another significant advantage of a mortgage is that the borrower can also earn some profit by selling the home to someone else for a handsome amount. Like if Mr. X wants to buy a real estate property worth 500K dollars. He has deposited 100k dollars as a down-payment—the remaining 400k dollars paid by the bank.  After a few days, that real property has shown an increase in its worth like 600K dollars. The borrower can sell that property in 600K dollars, the profit of 100K dollars. He doesn’t have to split this profit with the bank. It is because the banks are not considered as partners in the mortgage. Borrower then returns 400K dollars of the bank at once and left with 200K dollars. A mortgage just helped him in doubling his investment.

How to Get a Mortgage

People, who want to get a mortgage, follow these steps;

1. Get the credit score where it requires

Check your credit report to ensure all the information it includes is accurate. If not, call the credit bureau to correct it. If the information is correct, find out your credit scores from the credit bureau.

2.Check the Debt to Income Ratio (DTI)

Mortgage lenders need to know how much debt you have compared to your earnings, and it is known as your DTI or debt to income ration, and the best it is, the best mortgage term you will receive.

3. Consider Your Down Payment

According to the mortgage lender, complete down payment is 20 % of the home’s purchase cost or price. By inserting 20%, you don’t have to pay (PMI) private mortgage insurance, usually between 0.5-1 percent of the loan.

4. Pick the Best Type of Mortgage

You have an option of various types of mortgage, and out of these, you select between a fixed-rate loan and adjustable-rate loan. You, mortgage lender, can also help pick the right type of mortgage.

5. Get Prequalified for a Mortgage

It is an informal process where you answer the mortgage lender’s questions. Depend on the information you give the lender, they will let you know whether you qualify for a mortgage or not.

Importance of Mortgage Calculator For People

It is beneficial for a borrower to calculate the mortgage before he collects money from the bank because it gives you a brief idea about the affordability and monthly debt payment even before you seize into it. But there are some parameters you should know before calculations. The exact information about these parameters can help you see the precise picture of what you are going to pay every month.

  • Home Price – this parameter is the first thing you must know about.
  • Downpayment – is the minimum upfront amount that is deposited by the borrower.
  • Loan Term – debt payback duration, also known as the amortization period
  • Interest rate – the additional Amount charged by the lender. Maybe fixed or variable as per borrower choice.

These are fundamental parameters that can help a borrower to estimate the mortgage roughly. Several other factors can be added to the calculator. All these additional parameters are associated with the lease, which the borrower has to pay every month. Such as;

  • Property Tax – annual payment to the governing authorities against your property
  • Home Insurance – a cost paid to the insurance company yearly for securing the property.
  • Private Mortgage Insurance – PMI has to pay if the upfront payment is quite low.
  • Homeowner Association Fee – monthly payment to the housing society for improving and maintaining the surrounding environment
  • Other Payments – there many house expenditures like house maintenance cost

All these parameters are not part of a simple mortgage calculator. However, they provide you a complete overview of the total cost that you have to pay in owning the real property. It would help if you stuck to the necessary parameters only by having the rough view of the only mortgage that you have to pay every month.

Mortgage Formulae

A simple mortgage calculator is working as per built-in formulae for calculating the fixed monthly payment and remaining loan payment. These calculators prevent you from great mathematical solutions. If you want to calculate your fixed monthly payment and remaining loan balance, their formulae are;

1. For Fixed Monthly Payment

2. For Remaining Loan Payment


P = Borrowed Amount from Bank

r = Interest rate per month

n = total number of installments or loan term

m = total paid installments


A mortgage loan can help you to buy your own house even when you don’t have that much money. The borrower may have his inside perils about the mortgage. A simple mortgage calculator helps you to calculate the month fixed Amount with the change in different parameters.

This calculator than makes it easy for you to check the feasibility for a mortgage that either it is affordable for you or not. There are several websites, software, and handheld equipment that offer easy calculations and prevent you from going for mortgage formulae manually. 

There are several factors that you can add to your calculations. Still, a simple mortgage calculator sticks you to the necessary parameters and draws an overview to check your affordability.

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