Enter values and select Calculate to see your result.
Estimate investment growth from an initial balance and regular contributions
Monthly compounding with end-of-month deposits; no fees or taxes. Returns are assumed, not guaranteed.
How to use the Investment Calculator
Estimate growth from an initial balance, monthly contributions and an assumed annual return.
- Enter starting investment and monthly contribution.
- Choose annual return and investment period.
- Calculate to compare contributions with estimated growth.
Investment Calculator formula
Future value = starting balance growth + future value of end-of-month contributions.
Worked example
Inputs: $10,000 initially, $100 monthly, 7% return for 10 years.
What to expect: The result separates amount contributed from estimated investment growth.
How to read your result
Returns are uncertain; fees, taxes and market volatility can materially change the outcome.
Frequently asked questions
Is the return guaranteed?
No. It is an assumption for the scenario, not a promise of performance.
Are fees included?
No. Reduce the return assumption or model fees separately.