Compound Interest Calculator
Estimate how much your initial investment and regular contributions could grow over time, thanks to the power of compounding.
Your details
Your total wealth in 10 years
$36,177
Initial investment
$1,000
Total contributions
$24,000
Investment return
$11,177
This calculator gives an estimate only, assuming a constant annual growth rate. It does not account for taxes, fees or inflation, and is not financial advice.
How to use this calculator
- 1. Enter your initial investment, the investment period, and the growth rate you expect per year.
- 2. Add how much you plan to contribute regularly, and how often: weekly, monthly or annually.
- 3. Your projected total wealth updates instantly, along with a year-by-year breakdown of your initial investment, contributions and investment return.
FAQ
What is compound interest?
Compound interest is interest calculated on both your original investment and the interest it has already earned. Over time, this compounding effect can significantly accelerate the growth of your money compared to simple interest.
How accurate is this calculator?
This tool assumes a constant annual growth rate applied every month. Real markets fluctuate, so actual results will differ. Use it to compare scenarios, not to predict an exact outcome.
Does this account for taxes, fees or inflation?
No. This calculator shows gross growth only. Taxes, investment fees and inflation will all reduce your real, spendable return, so factor them in separately when planning.
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Disclaimer
The results provided by this calculator are estimates only, based on the assumptions you enter, and are not a prediction or financial advice. Actual investment returns will vary. Consider speaking with a licensed financial adviser before making any financial decision.