The Power of Interest - How Long Will it take My Money to Double?

Have you ever heard of the Rule of 72? How about the Rule of 114? The Rule of 72 is a shortcut to estimate the number of years it takes for an investment to double, while 114 estimates how long it takes to triple. Better still, use this calculator to get more exact numbers.

Interest Rate

Enter your expected annual interest rate to see how long it will take your investment to grow.

This is an example value. Update it to reflect your expected rate of return.

%

Why do you want your investment to double or triple? Does that fit into your overall strategy, or is it just a fun math problem to solve? With saving and growing your money, sometimes hitting singles is a better approach than swinging for a home run.

See How Your Money Grows

Why do you want your investment to double or triple? Does that fit into your overall strategy, or is it just a fun math problem to solve? With saving and growing your money, sometimes hitting singles is a better approach than swinging for a home run.

Compounded
Growth Target Annually Monthly Weekly Daily
Double 2× your investment 0.0000 years 0.0000 years 0.0000 years 0.0000 years
Triple 3× your investment 0.0000 years 0.0000 years 0.0000 years 0.0000 years
10× Growth 10× your investment 0.0000 years 0.0000 years 0.0000 years 0.0000 years

What's Your Time Horizon?

Have A Question About This Topic?

Thank you! Oops!

Related Content

The Anatomy of an Index

The Anatomy of an Index

The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding.

What's So Great About a Rollover?

What's So Great About a Rollover?

Making a career move requires tough decisions, not the least of which is what to do with the funds in your retirement plan.

Roth 401(k) vs. Traditional 401(k)

Roth 401(k) vs. Traditional 401(k)

This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k).