Online Banking Update:  We’re excited to announce a new look and updated features and functionality for Online Banking. As part of this update, Online Banking will be unavailable beginning at approximately 11:00 pm, on Monday, March 4, and will resume availability on Tuesday, March 5 at approximately 4:00 am. Click here for details, or call Customer Service at 800-531-1401 for assistance.


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Home Financing Calculators

Calculate your finances with our friendly calculators.


Financial calculators to help you make important financial decisions

Our user-friendly calculators are tools that will help you make informed financial decisions including credit card or loan repayment, saving for retirement, mortgage payments, and many other financial calculations.

Should I refinance?

How much will my fixed rate mortgage payment be?

How much will my adjustable rate mortgage payments be?

How much will my payments be for a balloon mortgage?

Should I rent or buy?

Which mortgage is better for me?

How much will I save by increasing my mortgage payment?

How much mortgage can I qualify for?

How much home can I afford?

Should I consolidate my loans?


Our calculators are for informational and hypothetical purposes and are not intended to provide financial advice. You should enter figures that are appropriate to your individual situation. The results provided by these calculators (Home, Investment, Personal, Retirement) are also intended for illustrative purposes only and accuracy is not guaranteed. Prosperity Bank and its affiliates are not tax or legal advisers. These calculators are not intended to offer any tax, legal, financial, or investment advice and do not assure the availability of or your eligibility for any specific product offered by Prosperity Bank, its affiliates, or any other institution, nor does this calculator predict or guarantee the actual results of any investment product. The terms and conditions of products offered by institutions will differ and may affect the calculator's results. Please consult with qualified professionals to discuss your situation. The final APR may differ from the APR in the above results due to additional fees that may be applicable.

Investment products offered through Prosperity Bank: Are Not FDIC Insured, Are Not Bank Guaranteed, May Lose Value, Are Not Deposits, Are Not Insured by Any Federal Government Agency, Are Not a Condition to Any Banking Service or Activity

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