Calculators

Focused tools for long-term planning.

Explore CompoundLab's live calculators for portfolio growth, retirement withdrawal planning, and financial independence.

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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.

Rent vs. Buy Calculator

Decide whether to rent and invest the difference or buy, with full opportunity cost, equity buildup, and wealth trajectory comparison.

Retirement Withdrawal Calculator

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