What a FIRE calculator is really telling you
A FIRE calculator can estimate your FIRE number and retirement age, but the real value is seeing which assumptions matter most before you build around them.
Insights
The math behind the decisions.
Most financial tools give you a number. CompoundLab Insights explains what that number is actually saying - and where it can mislead you. Each article is written to support a specific calculator, unpacking the assumptions, tradeoffs, and real-world context that the inputs can't capture on their own.
Should you pay off your mortgage early or invest instead?
Should you pay off your mortgage or invest instead? Learn how to compare the tradeoffs and test your own numbers with this calculator.
Choosing a reasonable long-term return assumption
A practical framework for setting return expectations that are useful for planning instead of optimized for optimism.
Nominal vs. real growth in portfolio planning
Why compound growth can look impressive on paper but still miss the purchasing-power question investors actually care about.
How recurring contributions reshape long-horizon outcomes
A guide to seeing how smaller monthly deposits can influence the final balance as much as headline return assumptions.