Compound Interest & Investment Calculator

Project how much your savings and stock portfolio will grow over time with periodic recurring contributions.

🔒 100% Client-Side Calculation
Responsive Leaderboard Ad Slot (728x90)

Investment Details

Estimated Future Balance
$343,923.70
Total Starting Principal: $10,000.00
Total Deposits Added: $120,000.00
Compound Interest Earned: $213,923.70

The Exponential Power of Compound Interest

Compound interest has famously been called the eighth wonder of the world. Because interest generates its own interest, your money compounds exponentially over extended time horizons. A regular monthly investment of $500 growing at an 8% annual stock index return accumulates over $340,000 in 20 years, with interest accounting for over 60% of the balance.

Frequently asked questions

What does Compound Interest Calculator do?

Calculate investment growth with compound interest. Add monthly deposits, set annual returns, and calculate future wealth accurately. 100% free online.

How does Compound Interest Calculator work?

Compound interest has famously been called the eighth wonder of the world. Because interest generates its own interest, your money compounds exponentially over extended time horizons. A regular monthly investment of $500 growing at an 8% annual stock index return accumulates...

Where can I find tools related to Compound Interest Calculator?

Use the related tools below to explore more Calculators & Math tools.

About the author

WebToolsHub Editorial Team

We maintain this calculators & math tool and its usage guide.