About the Investment Growth Calculator
Visualise investment growth year by year with increasing annual contributions (step-up) and compounding returns.
Also known as: growth of investment, portfolio growth, step up investment.
How to use this calculator
- Enter initial investment, monthly contribution, expected annual return, years and the other fields.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
FV = P(1 + r)ⁿ + PMT·((1 + r)ⁿ − 1)/r (monthly periods)
- P
- = initial amount
- PMT
- = monthly contribution
- r
- = monthly rate
- n
- = months
Worked example
Using the values pre-filled in the calculator above:
- Initial investment = 25,000
- Monthly contribution = 400
- Expected annual return = 9 %
- Years = 25
- Increase contributions each year by = 5 %
the calculator returns:
- Future value: 922,969
- Total contributed: 254,090.07
- Total growth / interest: 668,878.92
- Growth as % of contributions: 263.24%