Forecast your investment growth.
Track standard index fund growth or private equities. See how consistent monthly savings accumulate over decades.
Configure Parameters
Live Payoff Analysis
Projected Portfolio Value
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Total Invested Principal
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Total Investment Gains
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Visual Projections
Amount
Interest
Values update automatically as inputs slide. Zero server logs.
Common Questions & Guidance
Frequently asked questions regarding Investment Calculator.
What interest rate is realistic for investments?
Historically, the U.S. stock market (S&P 500) has returned an average of 10% annually before inflation. Adjusting for inflation, a realistic growth model is 7% to 8%.
What is dollar-cost averaging (DCA)?
DCA is the practice of investing a fixed amount of money at regular intervals (like monthly), regardless of market pricing, which lowers average cost per share over time.