Financial

Investment Calculator

Use OmniCalc's investment calculator to estimate how an initial investment, recurring monthly contributions, expected return, and annual fees shape long-term portfolio value.

Investment calculator

Project portfolio growth and see how fees change the outcome.

Estimate how an initial investment, recurring monthly contributions, expected return, and annual investment fees shape long-term portfolio value.

The projection compounds your initial investment and monthly contributions using the expected net annual return after fees.
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Why this result matters

What this calculator helps you answer

A practical investment growth tool that shows how contributions and fee drag compound over time. Use the tool above to enter a few clear inputs and get a practical answer you can use right away.

This investment calculator helps users project portfolio growth without relying on vague averages. By combining an initial investment, monthly contributions, expected return, annual fees, and a time horizon, it shows not just the projected ending balance but also how much of that outcome comes from contributions, how much comes from growth, and how much long-term value fees may quietly consume.

Formula and method

How the calculation works

The calculator compounds the starting investment and recurring monthly contributions over the selected time horizon. It applies a net annual return equal to expected annual return minus annual fee rate, then compares that outcome with an equivalent no-fee projection to estimate fee drag.

Example

Example investment projection

If you invest 25,000 up front, add 500 each month, expect an 8% annual return, pay 0.8% in annual fees, and stay invested for 15 years, the calculator estimates both your projected ending value and the amount fees reduce that outcome.

FAQ

Common questions about this calculator.

Short answers to the questions people often ask before or after using the tool.

Question

Why include annual fees in an investment calculator?

Because even small annual fees compound over time and can meaningfully reduce long-run portfolio value compared with a similar no-fee scenario.

Question

Is this calculator modeling taxes or market volatility?

No. It is a simplified growth estimate built for fast scenario planning. Taxes, inflation, and real-world return swings are not modeled directly here.

Question

What is fee drag?

Fee drag is the gap between a no-fee projection and the same investment path after applying annual investment fees. It helps show how much value fees may erode over time.

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