Doubling Time Calculator

Doubling Time Calculator

This Doubling Time Calculator calculates the time it takes for an investment to double in value given a constant growth rate.

 

How to calculate doubling time?

Formula: Doubling Time = log(2) / log(1+r)

r = interest rate

Example: If an investment pays 8% interest, how long will it take to double the investment?

Step 1: Plug into formula and solve

log(2) / log(1 + 0.08) = 9.01 years

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