Progress to Lean FIRE

6.9%

Lean FIRE Calculator

Retire early on a lean budget

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7.0%
3.0%12.0%
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3.0%
1.0%8.0%
4.0%
2.0%6.0%

Your Lean FIRE Number

$189,759

Lean Age

40

Time Left

10 years

FIRE Goal

$720,000

You'll reach Lean FIRE at age 40. After that, compound growth alone gets you to $720,000.

Progress6.9%

Portfolio Projection

Portfolio BalanceCoast FIRE TargetFIRE Number

Year-by-Year Breakdown

AgeContributionsGrowthWithdrawalsBalanceFIRE %Phase
30$18,000$1,942--$69,9426.9%Saving
31$18,000$2,716--$90,6589.7%Saving
32$18,000$3,521--$112,17912.6%Saving
33$18,000$4,356--$134,53515.6%Saving
34$18,000$5,225--$157,76018.7%Saving
35$18,000$6,127--$181,88721.9%Saving
36$18,000$7,064--$206,95125.3%Saving
37$18,000$8,037--$232,98828.7%Saving
38$18,000$9,048--$260,03632.4%Saving
39$18,000$10,098--$288,13436.1%Saving

What is Lean FIRE?

The minimalist approach to financial independence -- building a portfolio to support a frugal lifestyle indefinitely, targeting around 60% of average household spending.

For someone who normally spends $48,000/year, Lean FIRE would target about $28,800/year in retirement. The advantage is speed: with a lower target, you can reach financial independence years or even decades sooner than traditional FIRE. The tradeoff is living on a tight budget with limited room for luxury or unexpected expenses.

Is Lean FIRE Right for You?

Lean FIRE works best if you:

01

Naturally frugal

You enjoy a minimalist lifestyle and don't feel deprived by it.

02

Flexible on location

You live in or are willing to move to a low cost-of-living area.

03

Low healthcare costs

Good health or will qualify for ACA subsidies.

04

Free or low-cost hobbies

Your passions don't require big spending.

05

Comfortable with some risk

A tighter budget means less margin for error.

If you want more financial cushion, consider Coast FIRE (stop saving but keep working) or Fat FIRE (retire with a generous budget).

Frequently Asked Questions

What is Lean FIRE?
Lean FIRE is achieving financial independence on a frugal budget, typically spending around 60% or less of average American household expenses. It's the fastest path to early retirement because it requires the smallest portfolio, but it demands a disciplined, minimalist lifestyle.
How much do I need for Lean FIRE?
Lean FIRE typically targets annual spending of $25,000-$40,000 for an individual. At a 4% withdrawal rate, that means a portfolio of $625,000 to $1,000,000. Use our calculator with your actual frugal spending number to get your exact target.
Is Lean FIRE sustainable long-term?
It can be, but it requires careful planning. Key risks include unexpected medical expenses, inflation eroding purchasing power, and lifestyle creep. Many Lean FIRE practitioners maintain some part-time income as a safety buffer, or they relocate to lower cost-of-living areas.
What's the difference between Lean FIRE and Barista FIRE?
Lean FIRE means full retirement on a frugal budget with no earned income required. Barista FIRE means working part-time to supplement portfolio withdrawals. You could combine both strategies by being Lean FIRE but working occasionally for extra security.
Where do Lean FIRE retirees live?
Many Lean FIRE retirees reduce costs by living in low cost-of-living areas, either domestically (rural areas, smaller cities) or internationally (Southeast Asia, Central America, Eastern Europe). Geographic arbitrage is a key strategy for Lean FIRE.

More FIRE Calculators

Coast FIRE Calculator

When can you stop saving and coast to retirement?

Barista FIRE Calculator

Work part-time while your portfolio covers the rest.

Fat FIRE Calculator

Retire comfortably with a generous budget.