Wealth Projection Calculator

What is Wealth Projection?

A wealth projection is a long-term simulation that models how your net worth will grow over time. Unlike simple interest calculators, an advanced wealth projection accounts for the dynamics of your professional and financial life, such as annual salary increments, monthly systematic investment plans (SIPs), and the compounding returns of your investment portfolio.

By projecting your wealth, you can visualize the direct impact of high savings rates, career growth, and market returns on your final net worth.

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The Mathematics of the Simulation

Our calculator runs a precise month-by-month compound interest loop to simulate your future wealth:

1. Annual Salary and SIP Escalation

Your salary is assumed to grow by an annual increment percentage (s). At each year y, your annual salary escalates as: Salary(y) = Salary(y-1) * (1 + s / 100)

Your starting monthly contribution is derived from your salary and savings rate (SR): Monthly Savings(y) = [ Salary(y) / 12 ] * [ SR / 100 ]

Because your salary increases annually, your monthly systematic contributions automatically step up each year, creating a powerful step-up compound effect.

2. Portfolio Compounding Loop

At each year, the calculator compounds your existing portfolio value by the expected annual rate of return (R) and adds the monthly SIP contributions. Let the monthly compounding rate be r = R / 12 / 100. The future value of that year's monthly contributions is solved as: SIP Future Value = Monthly Savings * [ ( (1 + r)^12 - 1 ) / r ] * (1 + r)

The overall portfolio value at the end of year y is updated as: Portfolio(y) = Portfolio(y-1) * (1 + R / 100) + SIP Future Value

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Compounded Wealth vs. Simple Savings

One of the most eye-opening features of this calculator is the comparison between Compounded Wealth and Simple Savings:

• Simple Savings: Represents the sum of all your cash contributions over the years (plus your starting net worth), with no interest earned.
• Compounded Wealth: Shows the final value of your portfolio when those savings are invested and compounded.

Over a 20 to 30-year horizon, the gap between simple savings and compounded wealth grows exponentially. This gap is known as the Compound Premium and represents the money that your money earned for you while you slept!

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How to Maximize Your Future Wealth

To steepen your compounding curve and reach your financial goals faster:

• Focus on Career & Salary Growth: Even a 2% increase in your annual salary growth rate (e.g., from 6% to 8%) compounds to massive differences in monthly savings over a 20-year career.
• Optimize Your Asset Allocation: Shift capital toward compounding assets like equity mutual funds, stocks, or index funds that target long-term returns of 12-15%, rather than keeping all cash in low-yielding savings accounts.
• Escalate Savings with Salary Raises: When you get a salary raise, avoid "lifestyle creep." Instead, increase your savings rate to direct a larger portion of that raise straight into your investments.