Doubling time

Updated: Aug 20, 2021

Doubling time

The doubling time is the period of time required for a quantity to double in size or value.

Doubling time is a concept used for quantities that grow exponentially. Interest rates and the growth of a population are the most common examples used. If the growth rate is less than about 0.15 per time interval, we can use this fast method for a good estimate.


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James Knight
Editor of Education
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.