Investment Calculator

Estimate your future investment value with regular contributions and compound growth.

Initial Investment Enter the amount you plan to invest initially.

Monthly Contribution Enter the amount you plan to add at the end of each month.

Expected Annual Return (%) Enter an assumed annual rate of return for the investment scenario.

Investment Period (Years) Enter how long you expect to keep the investment.

Compounding Frequency Select how frequently the assumed return is compounded.

Investment Results

Initial Investment

Monthly Contribution

Expected Annual Return

Investment Period

Total Contributions

Investment Growth

Future Investment Value

What Is an Investment Calculator?

An investment calculator estimates how an initial investment and regular contributions could grow over time when an assumed annual rate of return is compounded.

It can help you understand the potential effect of compound growth, regular investing, and time on the future value of an investment.

Investment Growth Formula

A = P(1 + r/n)^nt

Where A is the future value, P is the initial investment, r is the annual rate of return as a decimal, n is the number of compounding periods per year, and t is the investment period in years.

Regular monthly contributions are also included in the calculation. The calculator assumes contributions are made at the end of each month.

Example Investment Calculation

Suppose you invest $10,000 initially, add $300 each month, and assume an annual return of 7% for 20 years.

The calculator estimates the future value by combining the initial investment, monthly contributions, and assumed compound growth.

How Compound Growth Affects Investments

Compound growth means that investment returns can generate additional returns over time. When returns are reinvested, the amount available to grow can become larger as the investment period increases.

Regular contributions can further increase the amount invested and may have a significant effect over longer periods.

Investment Calculator Assumptions

This calculator uses the annual return and compounding frequency entered by the user. Monthly contributions are assumed to be made at the end of each month and are included using an equivalent monthly growth rate based on the selected compounding frequency.

Important: This calculator provides a mathematical estimate for general informational and educational purposes. Investment returns are not guaranteed. Actual results may differ because of market performance, fees, taxes, inflation, contribution timing, and other factors. Investments can lose value.

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Investment Calculator FAQs

What does an investment calculator calculate?

It estimates the future value of an investment using the initial investment, regular contributions, expected annual return, compounding frequency, and investment period.

Can I include monthly investments?

Yes. Enter your planned monthly contribution to include regular investments in the estimated future value.

What annual return should I enter?

Enter an assumed annual rate of return appropriate for the investment scenario you are evaluating. Actual investment returns can be higher or lower.

Does the calculator guarantee investment returns?

No. This calculator provides a mathematical estimate based on the values you enter. Actual investment performance is uncertain and investments can lose value.

Does this calculator account for investment fees and taxes?

No. The calculator does not automatically account for investment fees, taxes, inflation, or other costs unless they are reflected in the return rate you enter.

Is this Investment Calculator free?

Yes. The Investment Calculator on Easy Online Tool is free to use and does not require registration.