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Simple Interest Calculator

Quick SI = P×R×T/100 calculations for loans and deposits.

How to use

  1. Enter the principal amount.
  2. Enter the yearly rate and time in years.
  3. Read the interest and total instantly.

Frequently asked questions

Simple vs compound interest?

Simple interest is charged only on the principal; compound interest also earns interest on accumulated interest.

Can I use months?

Convert to years - e.g. 18 months = 1.5 years.

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