Investment Growth Calculator

The Investment Growth Calculator projects how your portfolio might grow with compound returns. Enter your initial investment, monthly contributions, expected annual return, and years. The calculator applies monthly compounding and shows a year-by-year breakdown.

Use it to plan for retirement, education savings, or other long-term goals. Compare conservative (5%), moderate (8%), and aggressive (12%) scenarios to see a range of outcomes. Remember: projections are estimates, not guarantees.

Conservative (5%) might reflect a bond-heavy or low-risk portfolio. Moderate (8%) approximates a balanced mix. Aggressive (12%) suggests a stock-heavy portfolio with higher expected return and volatility. Running all three shows how asset allocation affects long-term growth.

For example, $10,000 initial + $500/month for 25 years: Conservative ≈ $290,000, Moderate ≈ $475,000, Aggressive ≈ $780,000. The difference illustrates the impact of expected return on wealth building.

Starting 5 years earlier can add hundreds of thousands to your final balance. Compound growth is exponential: each extra year of contributions and returns builds on the previous. The calculator includes a comparison showing the effect of starting 5 years earlier or later.

If you're 25, starting now vs. at 30 can mean a difference of 30–50% in your retirement balance. Even small monthly amounts, invested early, grow substantially over decades.