Investments
Investment calculator
Project portfolio growth with contributions, fees, and inflation.
Your inputs
$
$
%
%
%
Results
Future value (nominal)
$557,063
In today's dollars
$308,432
Total contributed
$205,000
Growth
$352,063
Breakdown
Total: $557,063
Future value composition
0%25%50%75%100%
- Initial$25,0004.5%
- Contributions$180,00032.3%
- Growth$352,06363.2%
Decision Engine
Should you go for this?
Compounding will meaningfully build wealth.
Strong Growth
Financial fit score100/100
Return rate
8.00%
≥ 7% ideal
Horizon
20 yrs
≥ 20 ideal
Final value
$0
Working in your favor
- 8.00% matches historical stock market returns.
- Long horizon lets compounding do the heavy lifting.
AI Insight
Personalized analysis from your numbers
Tap Generate for an AI-written breakdown of what your numbers mean, plus tailored next steps.
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About this calculator
What the Investment calculator does
Investment Calculator helps you project portfolio growth with contributions, fees, and inflation. It runs entirely in your browser — your inputs are never sent to a server.
How to use it
- Enter your details: Initial investment, Monthly contribution, Annual return, Annual fees (expense ratio), Years invested, Inflation.
- Results update instantly as you type — no submit button needed.
- Tap an info icon next to any field for guidance on what to enter.
- Use the Share button to save a permalink that restores your exact inputs.
- Tap Generate on the AI Insight card for a personalized written breakdown.
Tips & context
- Try a few scenarios — adjust one input at a time to see its impact.
- Save useful scenarios to your dashboard for later comparison.
- Pair this with other Investments calculators for a fuller picture.
FAQ
Frequently asked
Is this calculator free?+
Yes — every CortexCalculator tool is free, requires no signup, and runs locally in your browser.
Is my data private?+
Absolutely. Inputs stay on your device. Only anonymous AI Insight requests (when you tap Generate) leave the page.
How accurate are the results?+
We use standard financial formulas and refresh tax rates annually. Treat outputs as planning estimates, not professional advice.