Advanced Equity Growth Inputs
Example Data Table
| Input | Sample Value | Meaning |
|---|---|---|
| Initial Investment | $25,000 | Starting capital already invested. |
| Monthly Contribution | $750 | Amount added every month. |
| Annual Return | 10% | Expected yearly growth before fees. |
| Dividend Yield | 2% | Cash distribution yield from holdings. |
| Annual Fees | 1% | Expense ratio, advisory, or management costs. |
| Inflation Rate | 3% | Used to estimate real purchasing power. |
| Years | 20 | Total projection duration. |
Formula Used
The calculator projects growth with recurring contributions, dividend reinvestment, fee drag, and inflation adjustment. Monthly compounding is used to keep the contribution schedule realistic and easy to interpret.
Base monthly growth rate:
r = (1 + annual return)^(1/12) - 1
Monthly dividend reinvestment after dividend tax:
d = (dividend yield / 12) × (1 - tax rate)
Monthly fee drag:
f = annual fees / 12
Monthly balance update:
Ending Monthly Balance = (Current Balance + Monthly Contribution) × (1 + r + d - f)
Inflation-adjusted value:
Real Value = Nominal Value / (1 + inflation rate)^years
Benchmark calculations follow the same contribution pattern using separate benchmark return, dividend yield, and fee assumptions.
How to Use This Calculator
- Enter your current invested amount in the initial investment field.
- Add your expected monthly contribution and optional annual contribution growth.
- Set expected annual return, dividend yield, taxes, fees, and inflation.
- Choose your time horizon and a target portfolio value.
- Enable dividend reinvestment if you plan to compound distributions.
- Enter benchmark assumptions to compare your strategy with another path.
- Press the calculate button to view results, graphs, and yearly projections.
- Use CSV or PDF download buttons to save the output.
Frequently Asked Questions
1. What does this calculator estimate?
It estimates future portfolio value using starting capital, ongoing contributions, return assumptions, dividends, fees, taxes on dividends, inflation, and benchmark comparisons.
2. Is the growth result guaranteed?
No. It is a planning model based on your assumptions. Actual equity performance can differ because markets are volatile and returns rarely arrive smoothly.
3. Why include inflation?
Inflation shows purchasing power. A large nominal balance may be worth less in real terms after many years, so inflation-adjusted results are important.
4. What is the dividend reinvestment option?
When enabled, after-tax dividends are added back into the portfolio and compound over time. When disabled, dividends do not boost future growth.
5. Why compare with a benchmark?
A benchmark helps you judge whether your expected strategy assumptions are stronger or weaker than a reference return path with similar contributions.
6. What do the estimated range values mean?
They are rough planning bands derived from volatility inputs. They are not probability guarantees, but they help frame possible outcome dispersion.
7. Can I use this for retirement planning?
Yes. It is useful for long-term planning. The 4% withdrawal estimates can also provide a simple income reference for future withdrawals.
8. Does the calculator support exporting results?
Yes. You can export the yearly projection table as CSV and generate a PDF summary directly from the page using the download buttons.