Free tool

Investment Growth Calculator

See how a lump sum and monthly contributions could grow over time, based on assumptions you choose. Illustrative only — not a guarantee or personalised advice.

Please enter a value of 0 or more.
Please enter a value of 0 or more.
Please enter a period between 1 and 50 years.
Please enter a rate between 0% and 30%.
Please enter a value between 0% and 20%.
Please enter a value between 0% and 15%.

Projected outcome

Total you'll have contributed—
Illustrative growth—
Projected future value—
In today's buying power—
Talk to Stephan about this
Assumptions and how this is calculated
  • Growth is compounded monthly using the annual rate you enter, divided by 12 — a simplification of real-world markets, which don't grow smoothly.
  • If you set an annual contribution increase, your monthly contribution steps up by that percentage on each 12-month anniversary.
  • "In today's buying power" discounts the projected future value by your assumed inflation rate, so you can compare it to what money is worth today.
  • This does not account for fees, tax, product charges, or any specific investment vehicle's rules.
Illustrative only. This calculator provides an educational projection based on the assumptions you enter — it is not a guarantee of future performance and does not constitute financial advice. Actual investment returns vary and can be negative. Any specific recommendation depends on a full needs analysis of your financial situation, income, and goals, done directly with Stephan.