Doubling time – simple interest

Updated: Aug 20, 2021

Doubling time - simple interest

The doubling time for simple interest is simply 1 divided by the periodic rate. The formula for doubling time with simple interest is used to calculate how long it would take to double the balance on an interesting bearing account that has simple interest.

Simple interest is interest earned based solely on the principle. In contrast, compound interest is interest earned on principle along with prior interest earned.


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James Knight
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James is the Editor of Education for Invezz, where he covers topics from across the financial world, from the stock market, to cryptocurrency, to macroeconomic markets.... read more.