Investment Return Calculator

Investment Details

Required Inputs

Initial Investment

Investment Period (Years)

Expected Annual Return (%)

Optional Inputs

Additional Annual Contribution

Annual Fees (%)

📊 Monte Carlo Simulation

Enable probabilistic modeling (10,000 scenarios) Model market volatility to see range of possible outcomes

Investment Results

Final Portfolio Value

Total Invested

Total Returns

Total Fees Paid

Net Return (%)

Average Annual Return

🎲 Monte Carlo Simulation Results 10,000 Scenarios Based on Market Volatility

What is This? Monte Carlo simulation runs 10,000 different scenarios using historical market volatility. This shows the range of possible outcomes - from worst-case to best-case - giving you a realistic view of investment risk and reward.

Worst 10% of Scenarios

10th percentile outcome

Median Outcome (50th %ile)

Most likely outcome

Best 10% of Scenarios

90th percentile outcome

Confidence Range

80% of outcomes fall within this range

📈 Probability Cone Visualization

The shaded area shows the range where 80% of outcomes fall (10th to 90th percentile)

📊 Distribution of Final Outcomes

Histogram showing frequency of different final balance outcomes across 10,000 scenarios

💡 How to Use This: The median (50th percentile) is your most likely outcome, but the full range shows you what could happen in different market conditions. Use this to assess if your investment plan has acceptable risk for your goals.