Compound Interest Calculator

Financial Planning Tool

Watch your money
grow over time

See the real power of compound interest — how a starting balance and regular contributions snowball into wealth over time.

Starting amount

$

Monthly contribution

$

Annual interest rate

%

Compounding

Daily Monthly Quarterly Semi-annually Annually

Time horizon

20 years

Final balance

—

—

Total contributed

—

principal + deposits

Interest earned

—

—

Effective APY

—

—

Total balance Amount contributed

Balance growth over time.

Where your money comes from

Interest vs contributed.

Interest earned Contributed

Summary

Year	Balance	Contributed	Interest earned	Interest %

For illustrative purposes only. Results are estimates based on constant rate assumptions and do not account for taxes, inflation, or variable returns. Consult a qualified financial advisor before making investment decisions.