← Back to All Calculators

FIRE Calculator (Financial Independence, Retire Early)

Model your journey to early retirement. Calculate your exact FIRE number based on annual expenses, savings rate, and the 4% safe withdrawal rule.

Your Financial Details

$
$
$
%
%
%
💡 Real investment return after inflation is simulated at 5.37% per year.

Your FIRE Milestone Summary

Full FIRE Target Number
$1,250,000
Portfolio needed to fund $50,000/yr perpetually
Projected FIRE Age
Age 48
In 16 years
Coast FIRE Target Today
$202,400
To coast to traditional 65
Lean FIRE ($37.5k/yr)
$937,500
Fat FIRE ($75k/yr)
$1,875,000

💡 Accelerate Your Path to Financial Independence

Earn up to 4.5%–5.0% APY on your emergency fund with top FDIC-insured High-Yield Savings Accounts (HYSA).

Explore Top HYSAs →

How Does FIRE (Financial Independence, Retire Early) Work?

The FIRE movement is a lifestyle and personal finance philosophy centered on aggressive savings, prudent low-cost index investing, and achieving financial independence well ahead of the traditional US retirement age of 65.

1. The 4% Rule and the Trinity Study

The cornerstone of FIRE planning is the 4% Safe Withdrawal Rate (SWR), popularized by the 1998 Trinity Study. Researchers found that an investor who withdraws 4% of their portfolio in year one of retirement, and adjusts that dollar amount for inflation every subsequent year, has a greater than 95% likelihood of never running out of money over a 30-year span when invested in a balanced stock/bond portfolio.

To calculate your FIRE number, multiply your annual living expenses by 25:
FIRE Target = Annual Living Expenses × 25 (equivalent to dividing expenses by 0.04).

2. The 4 Flavors of FIRE

  • Regular FIRE: Accumulating 25x your current standard living expenses so you can retire completely without modifying your lifestyle.
  • Lean FIRE: Living frugally, typically budgeting under $40,000/year for an individual or family.
  • Fat FIRE: Planning for an abundant, luxury retirement with living expenses exceeding $100,000 to $150,000+ per year.
  • Coast FIRE: Accumulating enough investments early in life so that compound growth will fund traditional retirement at 65 without you ever making another contribution.

3. Accessing Retirement Accounts Before Age 59½

A common myth is that you cannot access 401(k) and IRA funds before age 59½ without suffering a 10% IRS penalty. In reality, early retirees leverage three established IRS provisions:

  1. Roth IRA Contributions: You can withdraw your direct original contributions from a Roth IRA at any age, completely tax-free and penalty-free.
  2. Roth Conversion Ladder: By converting Traditional 401(k)/IRA dollars to a Roth IRA, you can withdraw the converted principal penalty-free after a 5-year seasoning period.
  3. Rule 72(t) SEPP: Substantially Equal Periodic Payments permit early withdrawals based on life expectancy calculations.