The Power of Compound Interest Learn how to harness the power of compound interest for your investments. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content The Cost of Procrastination Procrastination can be costly. When you get a late start, it may be difficult to make up for lost time. Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Doubling Your Money This calculator demonstrates the power of compound interest.