Calculate Your FIRE Number
2-4 hoursDetermine the portfolio size needed to sustain your desired lifestyle using the 4% rule or your personalized withdrawal rate.
Field context
This workflow is part of 2 niche fields
Early retirement planning guide covering FIRE calculations, withdrawal strategies, healthcare before Medicare, tax-efficient account access, and lifestyle budgeting.
Determine the portfolio size needed to sustain your desired lifestyle using the 4% rule or your personalized withdrawal rate.
Calculate your savings rate, current net worth, and projected timeline to FIRE based on current trajectory.
Maximize tax-advantaged accounts, minimize fees, and choose an asset allocation aligned with your FIRE timeline.
Budget for health insurance between early retirement and Medicare eligibility at 65 — often the largest FIRE expense gap.
Plan the sequence of withdrawals from taxable, tax-deferred, and tax-free accounts to minimize taxes and avoid penalties.
Track progress annually, adjust savings rate or target date, and stress-test plan against market downturns and sequence-of-returns risk.
Calculate FIRE number and years to financial independence. · Model withdrawal strategy sustainability. · Annual FIRE progress check and timeline adjustment.
Project portfolio growth to FIRE target date.
Determine annual spending target for FIRE calculation.
Track total investable assets toward FIRE goal.
Calculate and optimize savings rate percentage.
Maximize tax-advantaged contribution strategy.
Plan Roth contributions and conversion ladder.
Maximize HSA as stealth retirement account.
Estimate pre-Medicare healthcare costs in FIRE budget.
Optimize taxable account withdrawal tax impact.
Common FIRE approaches and their financial requirements.
| Variant | Description | Typical FIRE Number | Timeline |
|---|---|---|---|
| Lean FIRE | Minimalist lifestyle ($25-40K/yr) | $625K-$1M | Fastest |
| Regular FIRE | Standard lifestyle ($40-70K/yr) | $1M-$1.75M | Moderate |
| Fat FIRE | Comfortable lifestyle ($100K+/yr) | $2.5M+ | Longer |
| Barista FIRE | Part-time covers healthcare/gap | $500K-$800K | Flexible |
| Coast FIRE | Stop saving, let compound grow | Varies by age | Early start required |
Increasing savings rate from 20% to 40% cuts FIRE timeline in half — more impactful than chasing higher investment returns.
Pre-Medicare health insurance is the largest unexpected FIRE cost. Budget $12,000-$18,000/year for a couple until age 65.
Moving from high-COL to low-COL area can cut FIRE number by 30-50% — Portugal, Mexico, and US heartland cities are popular FIRE destinations.
Hold 2-3 years of expenses in bonds/cash before retiring to avoid selling stocks during early-retirement market crashes.