Doubling Time Calculator

Updated: Jun 2, 2018

Doubling Time Calculator is used to calculate the period of time required for an investment to double in size or value
What does Doubling Time mean?
Doubling time is the period of time it takes for a value to double itself at a consistent rate of growth. This term is applied to any value that increases at a consistent rate.

Td = log(2) / log(1 + r)


  • Td = doubling time
  • r = a constant growth rate

Mr. Jacques earns 6% per year, compounded monthly. His monthly rate will be; r in the doubling time formula would be .005 (.06/12).

According to the formula,

Mr. Jacques would double his money within 138.98 months, or 11.58 years.

Created: May 20, 2018
Online Tool Designed For: Windows, OS X, Android, iOS, Linux