Calculate The Best Financial Choices For Your Future

Get a little help with the math behind your financial choices. Our easy-to-use calculators will help you make the best financial decisions regarding mortgages, debts, and more.

  • Interest Only Calculator
  • Mortgage Payment Calculator
  • Additional Payment Calculator
  • Buy vs. Rent Calculator
  • Refinance Calculator
  • FDIC Insurance Calculator
Interest Only Calculator
Interest Only Calculator icon
Interest Only Calculator

Figure out if taking advantage of an interest-only mortgage is your best financial decision.

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Mortgage Payment Calculator
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Mortgage Payment Calculator

See what your monthly mortgage payment will be based on the loan amount, interest rate, and term.

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Additional Payment Calculator
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Additional Payment Calculator

Figure out how much making additional payments each month will save you in interest.

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Buy vs. Rent Calculator
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Buy vs. Rent Calculator

Settle the debate once and for all by seeing the numbers, plain and simple, right in front of you.

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Refinance Calculator
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Refinance Calculator

See how much you can save by refinancing your loan. Plus, see what your principal balance would look like in years with and without refinancing.

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FDIC Insurance Calculator
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FDIC Insurance Calculator

See how an FDIC-insured bank can help your finances.

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Need Help Choosing an Account?

Answer some simple questions and our Product Selector Tool will quickly find your best option.

Discover More with GSB

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lending Rates
Find a loan with competitive lending rates and flexible financing options.
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Mortgages
Make the dream home a reality by getting a personalized mortgage at a great rate.
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Self Service Center
Open an account, pay a bill, transfer money, and deposit a check quickly and simply—without leaving the comfort of your home.
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