Lean FIRE Calculator

Achieve Freedom Through Frugality

Calculate your path to early retirement with minimalist living, typically requiring $1M or less for financial independence.

What is Lean FIRE? Complete Minimalist Strategy

Lean FIRE is achieving financial independence with minimal annual expenses, typically $40,000 or less per year. This approach requires a smaller portfolio (usually $750K-$1M) compared to traditional FIRE, making early retirement accessible faster through frugal living, geographic arbitrage, and focusing on experiences over material possessions.

1. Minimize Expenses

Live on $30K-40K/year through mindful consumption

2. Smaller Portfolio

Target $750K-$1M vs $1.5M+ for traditional FIRE

3. Intentional Living

Prioritize value, relationships, and experiences

Geographic Arbitrage: Many Lean FIRE achievers relocate to lower cost-of-living areas or countries. Popular destinations include Southeast Asia, Central America, and rural U.S. regions where $40K goes much further.

Lean FIRE Calculator Assumptions

Annual Spending: $30,000-40,000 max

FIRE Number: $750,000-1,000,000

Housing: Often rent-free or low-cost

Withdrawal Rate: 4% (Trinity Study)

Returns: 7% annual (S&P 500 historical)

Healthcare: ACA subsidies or travel insurance

💡 Lean FIRE typically means retiring 5-10 years earlier than traditional FIRE. Learn strategies in our Complete Lean FIRE Guide.

Lean FIRE Planning

Your age today

When to achieve Lean FIRE

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Total invested assets

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Gross monthly income

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Current spending

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Amount saved monthly

Target Lean Spending

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Max $3333/mo for Lean FIRE

Annual Target:$30,000

Budget Breakdown

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Monthly housing costs

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Monthly food spending

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Car/transit costs

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Insurance & medical

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Everything else

Total Budget:$2,500/mo

Geographic Arbitrage

Risk Management

months

Months of expenses covered

Real Lean FIRE Examples

Alex, 32 - Remote Developer

Current Savings:$650,000
Annual Expenses:$32,000
Lean FIRE Number:$800,000
Years to Lean FIRE:1.5 years

💡 Alex lives in rural Tennessee, grows food, and plans to travel internationally in retirement where USD goes further.

Maya, 29 - Teacher

Current Savings:$380,000
Annual Expenses:$28,000
Lean FIRE Number:$700,000
Years to Lean FIRE:3.8 years

💡 Maya house hacks (rents rooms), bikes everywhere, and plans to teach English abroad part-time after FIRE.

Common Lean FIRE Strategies

House Hacking: Eliminate housing costs

Car-Free Living: Bike/walk/public transit

Meal Prep: $200-300/month food budget

Travel Rewards: Free flights via churning

DIY Everything: Repairs, haircuts, etc.

Free Entertainment: Libraries, nature, community

🌿 Master Lean FIRE Living - Essential Resources

Lean FIRE proves that financial freedom doesn't require millions. Learn how to maximize happiness while minimizing expenses.

Prefer a more comfortable retirement?

Try our Fat FIRE Calculator for luxury retirement planning

Lean FIRE is achieving financial independence with minimal expenses, typically living on $40,000 or less per year, requiring around $1 million or less in invested assets.

Core Principles:

  • Minimalism: Focus on needs vs wants, intentional consumption
  • Frugality: Maximize value from every dollar spent
  • Simplicity: Reduce complexity and overhead in life
  • Sustainability: Live below means indefinitely

The Numbers:

Lean FIRE Number = Annual Expenses × 25
$40,000/year × 25 = $1,000,000

With the 4% rule, $1M provides $40K annual income indefinitely, adjusted for inflation.