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Investment Growth Calculator

Model investment portfolio growth with recurring contributions.

Understanding This Calculator

See how a diversified investment portfolio grows over time with regular monthly contributions. Perfect for modeling long-term brokerage account growth.

Core Formula

FV = PV × (1 + r)^n + PMT × [((1+r)^n - 1) / r]

What return should I assume?

Most planners use 6-8% nominal returns for diversified equities over long horizons, with 4-5% for conservative portfolios.

Should I model inflation?

Yes. To get real purchasing power, subtract 2-3% from your nominal return to account for historical inflation.

* All calculations above are theoretical estimates. Actual returns vary based on market performance, fees, taxes, inflation, and economic factors. This tool is for educational purposes only — not financial advice.

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Ads are from third parties. CompoundFig does not endorse advertised products and is not responsible for their claims. Our calculators remain independent educational estimates.