Interest Calculator
See how your money grows under simple interest versus compound interest.
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Simple / Compound
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How to use the Interest Calculator
- Enter your starting capital.
- Enter the annual interest rate.
- Enter the number of years.
- Compare simple and compound results.
Frequently asked questions
What's the difference between simple and compound interest?
Simple interest is earned only on the original amount. Compound interest is earned on the original amount plus previously earned interest, so it grows faster over time.