Investment Formula:
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This calculator estimates the future value of an investment considering both compound growth and regular monthly withdrawals. It helps investors plan for retirement or other long-term financial goals while accounting for regular income needs.
The calculator uses the investment formula:
Where:
Explanation: The formula calculates compound growth of the principal investment, then subtracts the total withdrawals over the investment period.
Details: Proper investment planning helps ensure financial security in retirement or other long-term goals. Accounting for withdrawals is crucial to avoid depleting funds prematurely.
Tips: Enter initial investment in USD, annual interest rate as a decimal (e.g., 0.05 for 5%), investment period in years, and monthly withdrawal amount. All values must be valid (positive numbers).
Q1: Does this account for taxes on withdrawals?
A: No, this is a simplified calculation that doesn't account for taxes, fees, or inflation.
Q2: What if I don't make monthly withdrawals?
A: Simply enter 0 for the monthly withdrawal to calculate pure compound growth.
Q3: How accurate is this calculation?
A: It provides a basic estimate. Real-world returns may vary due to market fluctuations and compounding frequency.
Q4: Can I use this for retirement planning?
A: Yes, but consult a financial advisor for comprehensive retirement planning that considers all factors.
Q5: What's a reasonable withdrawal rate?
A: The "4% rule" is often cited, but optimal rates depend on individual circumstances and market conditions.