Finance
Compound Interest Calculator
See how your savings grow with compound interest and regular monthly contributions. Includes a year-by-year chart.
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years
Plug in some numbers —
we'll crunch.
How to use
- 1Enter your initial lump-sum investment amount.
- 2Add a monthly contribution if you plan to invest regularly.
- 3Set the expected annual return rate (historically ~7% for diversified stock index funds).
- 4Choose the investment period in years.
- 5Select how often interest compounds — monthly is most common for savings accounts.
Frequently asked questions
⚠ For educational purposes only. Past returns do not guarantee future results. Consult a financial advisor before investing.
About this calculator
See how your savings grow with compound interest and regular monthly contributions. Includes a year-by-year chart.