Mortgage Purchase Budget Calculator

Introduction: The Mortgage Purchase Budget Calculator is a useful tool designed to help individuals estimate their affordable loan amount based on home price, down payment percentage, loan term, and interest rate. By inputting these key details, users can quickly determine a suitable budget for their home purchase.

Formula: The calculator uses the following formula to calculate the affordable loan amount: ���������� ���� ������=���� ������×����ℎ�� �������� ����1−(1+����ℎ�� �������� ����)−����� ��������Affordable Loan Amount=1−(1+Monthly Interest Rate)−Total PaymentsLoan Amount×Monthly Interest Rate​ where:

  • ���� ������=���� �����−���� �������Loan Amount=Home PriceDown Payment,
  • ����ℎ�� �������� ����=������ �������� ����12×100Monthly Interest Rate=12×100Annual Interest Rate​,
  • ����� ��������=���� ����×12Total Payments=Loan Term×12.

How to Use:

  1. Enter the home price.
  2. Input the down payment percentage.
  3. Specify the loan term in years.
  4. Enter the interest rate.
  5. Click the “Calculate” button to obtain the affordable loan amount.

Example: Suppose you have a home price of $300,000, a down payment percentage of 20%, a loan term of 30 years, and an interest rate of 4.5%. After clicking “Calculate,” the result will display the affordable loan amount.


  1. Q: What is the down payment percentage, and why is it important?
    • A: The down payment percentage is the portion of the home price paid upfront. A higher down payment reduces the loan amount.
  2. Q: How is the affordable loan amount calculated?
    • A: The calculator uses a formula that considers the loan amount, monthly interest rate, and total payments to determine the affordable loan amount.
  3. Q: Can I adjust the loan term to see its impact on affordability?
    • A: Yes, you can input different loan terms to observe how it affects the affordable loan amount.
  4. Q: Does the calculator account for property taxes and insurance?
    • A: No, this calculator focuses on the loan amount based on the specified inputs.
  5. Q: Is the result an exact loan approval amount?
    • A: No, the result provides an estimate. Consult with a mortgage professional for precise figures.

Conclusion: Our Mortgage Purchase Budget Calculator is a valuable resource for individuals planning to buy a home. It helps in determining an affordable loan amount based on key parameters. For personalized advice and accurate calculations, it is advisable to consult with a mortgage advisor.

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