The Flagship Financial Projection Suite
A mathematically verified roadmap for wealth generation, emergency security, and retirement planning.
Which Calculator Should You Start With? A Decision Table
Not all calculators are equally relevant to every stage of your financial life. Use this as a starting point:
| Your Situation | Best First Calculator | Why |
|---|---|---|
| Just starting to invest | Compound Interest | Shows how time horizon dwarfs contribution size |
| Already investing, want a target | FIRE Number | Translates lifestyle expenses into a portfolio target |
| Receiving stock dividends | DRIP Calculator | Quantifies the reinvestment premium over decades |
| Evaluating savings accounts | APR vs. APY | Exposes the gap between advertised and real rates |
| Building an emergency buffer | Emergency Fund | Calculates coverage in months, not vague rules of thumb |
| Planning early retirement | Retirement Planner | Models withdrawal sustainability across time horizons |
| Worried about inflation | Inflation Calculator | Shows purchasing power decay on any future balance |
| Recently sold stock | Stock Profit / ROI | Calculates net return after commissions and taxes |
Start with the calculator that maps to your most pressing financial question. The answers each tool gives are most powerful when you combine them — for example, running the Compound Interest calculator first, then using that projected balance as the input for the Inflation Calculator to see what it's worth in real terms.
The Compounding Hierarchy: Why Order of Operations Matters
Most people think of investing as a single activity. In practice, it's a sequence of decisions that stack on each other. Here's how the tools in this suite relate to each other mathematically:
| Step | Decision | Calculator | Output Used In |
|---|---|---|---|
| 1 | Set an emergency baseline | Emergency Fund | Frees up investable capital |
| 2 | Define your FIRE target | FIRE Number | Sets your portfolio goal |
| 3 | Model growth to that target | Investment Growth | Projects timeline |
| 4 | Account for dividend reinvestment | DRIP | Adds yield-on-yield layer |
| 5 | Adjust for inflation | Inflation Calculator | Converts nominal to real target |
| 6 | Verify withdrawal rate safety | Retirement Planner | Stress-tests the drawdown phase |
What "Mathematically Verified" Actually Means
Every calculator in this suite produces results grounded in standard financial formulas — no approximations, no simplified shortcuts that distort long-term projections.
13 Calculators, One Goal: Closing the Financial Literacy Gap
Most financial advice exists at two extremes: oversimplified rules of thumb ("save 20% of your income") or inaccessible academic research. Neither gives you a number you can act on.