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Not a member yet?

Listerhill Credit Union is a nonprofit financial cooperative improving lives in our community.

If you live in Alabama, Georgia, Mississippi, Florida, or Tennessee, you are eligible to become a member. Depending on your individual eligibility, we may require membership into an approved association at no cost to you.

You can also qualify for membership by being a family member of a current or potential Listerhill member.

With only $5, you can join Listerhill today and start taking advantage of a lifetime membership.

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Rule of 72 Calculator by Interest Rate

How It Works

The Rule of 72 predicts how long an investment will take to double based on a fixed annual interest rate. The rule is this: 72 divided by the interest rate number equals the number of years for the investment to double in size.

For example, if the interest rate is 12%, you would divide 72 by 12 to get 6. This means that the investment will take about 6 years to double with a 12% fixed annual interest rate. 

Enter a fixed annual interest rate into the calculator to see how long it will take for the investment to double in size.

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Frequently Asked Questions

  • Do I have to be a Listerhill member to apply?

    You can apply as a current member or become a member during the application process if you meet eligibility and credit requirements.

  • What does 0% APR for 12 months mean?

    It means you won't be charged interest on qualifying purchases for the first 12 months after opening your new Listerhill Visa Signature® Rewards, Keystone Signature® Rewards, Visa Platinum®, or Keystone Platinum® credit card.

  • How long does the 0% APR last?

    This introductory 0% APR offer applies for 12 months from account opening.

  • Do current Listerhill credit cardholders qualify?

    No; current Listerhill Visa Signature® Rewards, Keystone Signature® Rewards, Visa Platinum®, and Keystone Platinum® credit cardholders are not eligible for this offer, but other promotions may be available.

  • Who qualifies for the 0% APR for 12 months offer?

    This offer is available to new Listerhill Visa Signature® Rewards, Keystone Signature® Rewards, Visa Platinum®, and Keystone Platinum® credit cardholders and is subject to credit approval.