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simple interest

American  

noun

  1. interest payable only on the principal; interest that is not compounded.


simple interest British  

noun

  1. interest calculated or paid on the principal alone Compare compound interest

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

simple interest Scientific  
  1. Interest computed only on the original principal and not on the sum of the principal plus accrued interest. The amount of simple interest remains constant.

  2. Compare compound interest


Etymology

Origin of simple interest

First recorded in 1790–1800

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

To understand how compound interest works, let’s look at another kind of interest: simple interest.

From Seattle Times • Aug. 1, 2022

Areli invested a principal of $950 in her bank account that earned simple interest at an interest rate of 3%.

From Textbooks • May 6, 2020

We can also use the mixture model to solve investment problems using simple interest.

From Textbooks • Apr. 22, 2020

To find the interest we use the simple interest formula, I = Prt.

From Textbooks • Apr. 22, 2020

His neighbor's youthful ardor and the affectionate and simple interest which he took in his doings, his sometimes indiscreet questions, did him a great deal of good.

From Jean Christophe: in Paris The Market-Place, Antoinette, the House by Cannan, Gilbert