simple interest

American  

noun

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

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simple interest British  

noun

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

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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

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Etymology

Origin of simple interest

First recorded in 1790–1800

Example Sentences

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

From Seattle Times • Aug. 1, 2022

Sean’s new car loan statement said he would pay $4,866,25 in interest from a simple interest rate of 8.5% over five years.

From Textbooks • May 6, 2020

Robin deposited $31,000 in a bank account that earned simple interest at an interest rate of 5.2%.

From Textbooks • May 6, 2020

We will use the simple interest formula to find the interest earned in the different accounts.

From Textbooks • Apr. 22, 2020

In the cheaply furnished bedroom whose paper was faded, the observant eyes of Joe Gregory had caught one detail that struck his simple interest, even in the surge of weightier tides.

From The Tempering by Buck, Charles Neville