Free Retirement & Investing Tool

Investment Growth Calculator

Model long-term investment growth while seeing the estimated impact of annual fees and inflation. Compare total contributions with projected net growth.

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Calculator

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Complete every field. The calculator starts blank so the result reflects only the values you choose.

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What is the Investment Growth Calculator?

Model long-term investment growth while seeing the estimated impact of annual fees and inflation. Compare total contributions with projected net growth.

The tool compares the fee-adjusted projection with the same scenario before fees, then discounts the ending value for inflation.

Formula and calculation method

Monthly net growth = (1 + gross monthly return) ÷ (1 + monthly fee) − 1.

The result uses only the values entered on this page. It does not fetch account balances, market prices, tax returns or provider quotes.

Important limitations

Financial projections simplify real life. Returns can vary, laws and limits can change, inflation is uncertain, and taxes or fees may apply. Review the result as a scenario—not a promise.

Financial scope: Educational estimates only; not financial, investment, tax, legal or insurance advice.

Investment Growth Calculator FAQs

Sources and methodology

Source links support educational context. The arithmetic runs locally in your browser.