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Finance

Investment Growth Calculator: Long-Term Wealth Projector

Calculate exactly how your investment portfolio grows over time with monthly contributions and compound interest. Perfect for planning retirement, college funds, or general wealth building.

100% Free
Privacy First
Instant Results

Setup Portfolio

Future Value
$40,491
Estimated portfolio size
Total Earnings
$18,491
Growth from returns
Total Invested
$22,000
Principal + Contributions
Total Return (%)
84.1%
Yield over investment
Pro Tip: Consistency is key. Even small increases in monthly contributions can lead to massive differences over long periods due to compounding.

Growth Milestones

Year-by-year projections of your total portfolio value.

YearROI ProgressCapital GainsPortfolio Value
1
7.8% Gain
+$875$12,075
5
39% Gain
+$6,246$22,246
10
84.1% Gain
+$18,491$40,491

How It Works

Investment growth is not just about picking the right stocks; it is about the system of regular contributions. By adding to your portfolio every month, you are buying during both market highs and lows, a strategy known as dollar-cost averaging.

What You'll Get

Case 1: The Lump Sum Hybrid

Starting with $10,000 and adding $200 every month for 20 years at a 7% return. Your portfolio grows to $143,158.

Case 2: The Aggressive Saver

Starting with the same $10,000 but adding $1,000 every month for 20 years. The portfolio hits $561,154, showing the immense power of regular funding.

Accuracy & Limitations

Using an investment growth calculator helps you visualize the impact of inflation and fees. Even a 1% difference in annual fees can cost you tens of thousands of dollars over a 30-year investment horizon.