See how savings and investments grow with compound interest, including regular monthly contributions.
Savers and investors projecting how their money grows over time.
Enter your starting amount
Type the initial principal you are investing or saving.
Add rate, years and contributions
Set the annual interest rate, the number of years, and any regular monthly contribution.
Choose compounding frequency
Pick how often interest compounds, then read the final balance and total interest earned.
Compound interest is how savings and investments really grow — you earn interest on your interest, not just your original deposit. Seeing the numbers projected over years, with regular contributions, makes the long-term impact of saving clear.
Retirement planning
Project how a pension or long-term investment could grow over decades.
Savings goals
See how regular monthly deposits build toward a target amount.
Comparing accounts
Compare how different interest rates and compounding frequencies affect returns.
Simple interest is earned only on the principal; compound interest is earned on the principal plus previously earned interest, so it grows faster.
Yes. Regular monthly contributions are compounded along with your starting balance.
No. It is an estimate for illustration only and does not account for tax, fees, or inflation.