What does the investment growth calculator show?

It models your portfolio’s future value based on your starting balance, regular or one-off contributions, time horizon, and investment growth rate. It visualises how your wealth may grow over time.

Can I change contribution amounts or growth rate during the forecast?

Yes. You can customise one-off and monthly contributions at any point in the model, and adjust the growth rate to simulate different investment scenarios.

Is the investment calculator free to use?

Yes. All Optimly calculators are completely free to use and require no signup or personal information.

OPTIMLY Calculators | Investment Growth Forecast Advanced Calculator

Investment growth inputs

Current balance:

Start date

Time period, Years:

Regular contribution amount:

Start regular payment on month:

How often? Every:

Growth rate:

Make one-off contributions

Change regular contributions

Change interest rate