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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 a lead content editor for Invezz. He's an avid trader and golfer, who spends an inordinate amount of time watching Leicester City and the… read more.