Investment Calculator
Project how an investment grows with regular contributions and compound returns.
Enter your values to see the result.
Results are estimates for planning only. Actual figures depend on your lender or bank, fees, rounding and the exact dates used, so confirm the numbers before you sign anything.
Continue your work
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Clear instructions
Find steps, examples and limitations below.
Use online
Open the tool in a supported web browser.
Free to use
No sign-up required. Tool-specific limits may apply.
How to use the Investment Calculator
Project how an investment grows with regular contributions and compound returns.
- 1 Enter the starting amount and monthly contribution.
- 2 Enter the expected return, years, compounding and optional inflation.
- 3 Read the final value and the yearly growth table.
Example and practical tips
10,000 plus 500 a month at 7% for 20 years grows to about 300,000, of which 130,000 is your money and the rest is growth.
Frequently asked questions
What return should I use?
Use a cautious long-run average for your mix of investments; past returns do not guarantee future ones.
Why add inflation?
It shows what the future amount is worth in today’s money.
Report an issue
Something broken or not quite right? Tell us and we will look into it.