FIRE Number by Age: How Much You Need to Retire Early
Estimate FIRE targets by age and learn why the right number changes with retirement length, spending, healthcare, and withdrawal rate.
Your FIRE number at 35 should not be the same as your number at 60. Earlier retirement means more years of withdrawals, more sequence risk, and a larger healthcare and inflation buffer.
Start with expenses and withdrawal rate, then stress-test the result by retirement age.
Calculate Your FIRE Number →A practical age-based framework
- Retiring in your 30s: consider 33x+ annual expenses because the withdrawal period is very long.
- Retiring in your 40s: 30x-33x is a more resilient range than the basic 25x rule.
- Retiring in your 50s: 28x-30x may work if healthcare and housing are controlled.
- Traditional retirement age: 25x can be reasonable if Social Security, pension, or annuity income helps.
Why age changes the target
A longer retirement magnifies every assumption. Inflation, medical costs, bear markets, and lifestyle changes have more time to compound. That is why early retirees often use a lower withdrawal rate than traditional retirement plans.
Use Coast FIRE as a checkpoint
If full FIRE feels far away, check whether your current investments can coast to a traditional retirement target. The Coast FIRE Calculator is useful for this midpoint.
Do not compare corpus without comparing expenses
Key Takeaways
- Earlier retirement usually needs a larger expense multiple.
- Age changes the safe withdrawal rate more than people expect.
- Housing and healthcare are the biggest FIRE-number swing factors.
- Coast FIRE is a useful checkpoint before full FIRE.