What is the primary advantage of compound interest?

It allows interest to earn interest.

Compound Interest Cheat Sheet

Compound interest is the eighth wonder of the world. He who understands it, earns it; he who doesn't, pays it. It's the process of earning interest on both the initial principal and the accumulated interest from previous periods.

Core Principles

Interest on Interest: Earn returns not just on your initial investment, but also on the interest already earned.
Time is Your Ally: The longer your money compounds, the more significant the growth.
Frequency Matters: More frequent compounding (daily vs. annually) leads to slightly faster growth.
Starting Early is Key: Even small amounts invested early can grow substantially over time.
Reinvestment is Crucial: Ensure your earnings are automatically reinvested to fuel further compounding.
Power of Consistency: Regular contributions amplify the effects of compound interest.

Formulas

$A = P \left(1 + \frac{r}{n}\right)^{nt}$
Where: A = the future value of the investment/loan, including interest
P = the principal investment amount (the initial deposit or loan amount)
r = the annual interest rate (as a decimal)
n = the number of times that interest is compounded per year
t = the number of years the money is invested or borrowed for

Quiz

What is the primary advantage of compound interest?: It allows interest to earn interest.
Which factor has the most significant impact on long-term compound growth?: Time
If interest is compounded annually, what does 'n' represent in the formula?: 1