Investment Calculator

Investment Growth by Year

The table below shows how the estimated investment value could develop over time based on the assumptions entered into the investment calculator.

Each year's estimate includes your accumulated contributions and estimated investment growth after fees. These figures are mathematical projections based on the assumptions entered and are not guaranteed investment returns.

How Does an Investment Calculator Work?

An investment calculator estimates how an investment could grow over time based on an initial amount, regular contributions and an assumed annual rate of return.

Enter your starting investment, monthly contribution, expected annual return and investment period. The calculator compounds the assumed return monthly and adds your regular contributions throughout the investment period.

You can also enter estimated annual investment fees and inflation. This makes it possible to compare the potential effect of investment costs and changes in purchasing power on long-term investment projections.

The results are mathematical projections based on the assumptions you enter. They should not be interpreted as a prediction of actual market performance.

Investment Calculator With Monthly Contributions

Regular monthly contributions can have a significant effect on long-term investment growth. Instead of investing only an initial amount, you can use this calculator to model an investment strategy that adds money every month.

Each monthly contribution becomes part of the invested balance and can potentially generate future returns. The longer the investment period, the more opportunities those contributions have to participate in compound growth.

This is useful when estimating scenarios such as investing a fixed amount every month into a diversified portfolio, retirement account, index fund or other long-term investment.

How to Interpret Investment Growth Scenarios

The scenario chart helps you explore how sensitive a long-term investment projection is to the expected annual return. Instead of relying on one estimate, you can compare a lower-return scenario, your selected return and a higher-return scenario.

Start by entering your initial investment, monthly contribution, expected annual return, investment period, estimated annual fees and inflation rate. Review the estimated final value and the inflation-adjusted value before comparing the three lines in the chart.

The gap between the scenario lines illustrates how different return assumptions can lead to different projected outcomes. Over longer periods, even a modest difference in the assumed return can have a substantial effect because growth compounds over time.

What the Scenario Chart Does Not Show

The chart uses constant return assumptions to calculate hypothetical outcomes. It does not simulate actual market fluctuations, changing annual returns or the risk of losses in individual years. The scenarios are comparisons of mathematical assumptions, not predictions or probability ranges for future performance.

Use the results to understand how the assumptions affect the projection, rather than treating the highest-return scenario as the most likely outcome. Actual investment performance, fees, inflation and taxes may differ from the inputs used.

Investment Calculator With Fees and Inflation

Investment fees can reduce the amount of money that remains invested and available to generate future returns. Even relatively small annual fees can have an effect when an investment is held for many years.

For example, if an investment has an expected annual return of 7% and annual investment fees of 0.2%, the estimated effective annual return after fees is approximately 6.79% under the assumptions used by this calculator.

Actual investment costs vary depending on the investment product and provider. They may include fund expenses, management fees, platform fees, trading costs, taxes or other charges that are not necessarily included in this calculator.

Why Inflation Matters for Investments

Inflation reduces the purchasing power of money over time. As a result, an investment balance that looks large in the future may have less purchasing power than the same amount of money today.

This calculator provides an estimated inflation-adjusted value to illustrate how inflation could affect the future purchasing power of your investment.

The inflation assumption is not a prediction. Actual inflation can vary over time and can be higher or lower than the percentage entered into the calculator.

Example Investment Scenario

Suppose you invest $5,000 initially and contribute $200 every month. If you assume a 7% annual return, 0.2% annual investment fees and 2% annual inflation over 20 years, the calculator estimates a final investment value of approximately $117,666.

You would contribute a total of $53,000 during the 20-year period. Under these assumptions, the estimated investment growth would be approximately $64,666.

The estimated inflation-adjusted value would be approximately $79,186 in today's purchasing power based on the 2% annual inflation assumption.

This example is purely hypothetical. Investment returns can vary significantly from year to year, and actual results may be higher or lower than the estimate.

Frequently Asked Questions

How does this investment calculator estimate future value?

The calculator starts with your initial investment and adds monthly contributions over the selected period. Each month, the balance grows according to the assumed annual return converted into a monthly rate. The estimated monthly fee is then deducted before the next contribution is added. The final value is a mathematical projection based on these assumptions, not a prediction of actual market performance.

How should I interpret the three investment scenarios?

The chart compares a lower return assumption, the annual return you selected and a higher return assumption. The lower scenario uses a rate two percentage points below your selected rate, with a minimum of 0%. The higher scenario uses a rate two percentage points above your selection. These scenarios help illustrate how different return assumptions can affect the projected outcome.

Do all three scenarios use the same contributions and fees?

Yes. The scenarios keep the initial investment, monthly contributions, annual fee assumption, inflation assumption and investment period unchanged. The assumed annual return is the factor that varies between scenarios, allowing you to compare the results more consistently.

What is the difference between final value and value after inflation?

Final value is the estimated account balance at the end of the investment period after the modelled fees. Value after inflation adjusts that future balance for the assumed cumulative inflation rate, giving an estimate of its purchasing power in today's terms. It is still an estimate and depends on the inflation assumption entered.

How do investment fees affect the projection?

The calculator estimates a monthly fee from the annual fee percentage you enter and deducts it from the balance during the simulation. Even relatively small recurring fees can reduce the amount left invested and therefore affect the projected final value. Actual fee structures may differ from this simplified calculation.

Does investment growth include money I contribute?

No. Total money contributed includes your initial investment and all monthly contributions. Investment growth is the difference between the projected final balance and the total money contributed. The growth shown is estimated after the fees modelled by this calculator.

Can I use this calculator for stocks or ETFs?

You can use this calculator to explore hypothetical scenarios for stocks, exchange-traded funds (ETFs) and diversified portfolios. However, it does not model actual market prices, volatility or the specific performance of any security. The expected annual return field accepts values of 0% or higher, so you cannot directly enter a negative annual return assumption. Because fees are deducted during the simulation, the final balance may still fall below your total contributions. Actual investments can lose value, and the results are estimates rather than guaranteed outcomes.

Are the results guaranteed?

No. The calculations assume a constant annual return and inflation rate throughout the selected period, together with the fee method described above. Actual market returns, fees and inflation can vary, so the results should be used to compare hypothetical scenarios rather than predict future performance.

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