Investment Growth Calculator
Estimate portfolio growth from initial investment, annual contribution, return assumptions, and time horizon.
Final value
$574,143.57
Total contributions
$225,000.00
Total growth
$349,143.57
Scenario Compare
Save up to 4 investment growth scenarios.
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Portfolio Growth
Year-by-year projection
Insights
Generate a concise interpretation of your inputs and outputs. This is educational and hypothetical.
What It Is
The investment growth calculator projects future portfolio value from a starting amount, annual contributions, expected return, and timeline.
It helps investors estimate how consistent contributions and compounding can affect long-term outcomes.
How It Works
Each year, current balance is grown by annual return and then annual contribution is added.
The tool reports final value, total contributions, and growth attributable to compounding.
Formula
Yearly update: next value = current value x (1 + return) + annual contribution.
Total growth = ending value - total contributions.
Example
If you invest $25,000 initially and add $10,000 per year at 8% for 20 years, ending value can significantly exceed contributed capital.
Run conservative and optimistic return assumptions to stress-test planning outcomes.
Frequently Asked Questions
Are returns guaranteed?
No, this is a hypothetical model.
Can I use monthly contributions?
This calculator uses annual contribution input.
Does it include taxes?
No, taxes and fees are excluded unless adjusted in assumptions.