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Simple Interest Calculator

Enter a principal, interest rate, and time period to calculate simple interest.

How to use this tool

  1. 1Enter the principal amount.
  2. 2Enter the annual interest rate and years.
  3. 3See the interest earned and total.

Frequently asked questions

How is simple interest different from compound interest?+

Simple interest is calculated only on the original principal; compound interest is calculated on principal plus previously earned interest, so it grows faster over time.

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