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Mortgage Calculator

Use our free home loan mortgage calculator to estimate your mortgage payment, with taxes and insurance. Enter the price of the home, your down payment and details about the home loan to calculate your mortgage payment, schedule and other details!

Whether you are a first-time home buyer, refinancing a home or purchasing your next home, your Lafayette, Louisiana mortgage broker at Castille Mortgage will take the worry and hassle out of getting a home loan.

When you feel the keys of your new house in your hand after buying your home, it’s a true moment!

***PMI – Only Conventional loans with 20% down and VA loans will not have PMI. Contact us today at 337.534.4415 to help figure out what your PMI rate will be.

using the free mortgage calculator & understanding home loans

Buying a home allows you to build equity when you make your mortgage payments, giving you access to wealth while also having something tangible to show for it, as well as tax breaks each year. Equity is the difference between what you owe on your home and the market value.

Figuring out how much you can afford can be simplified by knowing your budget and utilizing the Castille Mortgage home mortgage calculator. But remember, there are several parts of a home mortgage.


A lender can only quote a home loan based on principal and interest, based on the four major credit score factors that you are providing them as accurate. Eventually they will be verified by a qualified loan advisor. Those factors are:

  • Debt to Income Ratio
  • Credit Score
  • Down Payment Size
  • Work History

The Principal is the base amount of your loan.  A part of your principal is usually paid off with each mortgage payment, reducing the principal balance owed and increasing your equity. This is the part of your home that you own.

Your principal payment is typically small in the first few months and increases over the life of your mortgage as the balance decreases. Interest-only mortgages, as well as some other types of loans, do not include monthly principal repayment.

Interest is the amount a lender charges you for borrowing money to buy your home. It includes a percentage of the principal that is outstanding. When you start out, most of your mortgage payment is applied toward paying off the interest.


As you begin paying off your mortgage, more of your monthly payment goes toward paying off the principal and less toward the interest. If you have an adjustable-rate mortgage, your mortgage can change during the loan.

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