Calculators

Focused tools for long-term planning.

Explore CompoundLab's live calculators for portfolio growth, retirement withdrawal planning, and financial independence, with upcoming tools already mapped out.

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Advanced Investment Growth Calculator

Model long-term portfolio growth with recurring contributions, fees, inflation, taxes, and side-by-side investment scenarios.

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FIRE Calculator

Estimate your FIRE number, earliest retirement age, or the monthly contribution needed to retire by a target age.

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Mortgage Payoff vs. Invest Calculator

Decide whether to pay off your mortgage early or keep it and invest the same cash instead.

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Retirement Withdrawal Calculator

Estimate how long a portfolio could support retirement withdrawals under different spending assumptions.

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On The Roadmap

Planned calculators

Inflation Adjusted Return Calculator

Compare nominal returns with inflation-adjusted returns to understand real portfolio growth.

Dividend Reinvestment Calculator

Calculate how reinvested dividends can compound alongside price growth over time.

Monthly Investment Needed Calculator

Estimate the monthly investment needed to reach a target balance by a future date.

Lump Sum vs. Monthly Investing

Compare lump sum investing with monthly contributions over the same time horizon.

Portfolio Fee Impact Calculator

Estimate how fund fees and advisor costs reduce long-term investment returns.

Inflation-Adjusted Goal Planner

Project what a future spending or savings goal will cost after inflation.

Retirement Income Replacement Calculator

Estimate the portfolio needed to replace a portion of current income in retirement.

Coast FIRE Calculator

Estimate when current savings can coast to a future independence target without new contributions.

Safe Withdrawal Rate Calculator

Explore how different withdrawal-rate assumptions affect sustainable retirement spending.