FIRE Calculator

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Current Status

Current Age Your age today

Target FIRE Age Age you want to retire

Current Savings ($) Total invested so far

Annual Expenses ($) Money you need per year

Annual Savings ($) How much you can save yearly

FIRE Number Needed

Investment Growth

Annual Investment Return (%) Expected annual growth rate

Inflation Rate (%) Expected annual inflation

Safe Withdrawal Rate (%) Percentage you can safely withdraw yearly

Life Expectancy How long your money needs to last

FIRE Analysis Results

Projected Portfolio at Target Age

Annual Income (4% Rule)

FIRE Progress Tracker

How close you are to your FIRE number:

Years to FIRE

FIRE at Age

FIRE Number

Savings Rate %

Target Portfolio at Retirement:

Current Progress:

Annual Expenses (inflation-adjusted):

FIRE Status:

Key Recommendation:

Year-by-Year FIRE Progress

Track how your investments grow toward your FIRE goal:

Age	Year	Annual Savings	Portfolio Value	% to FIRE Goal	Status
Click Calculate to generate projections

FIRE Strategies & Approaches

Lean FIRE (30% Less Spending)

Goal: Retire on 70% of current spending. Example: If spending $50K/year, retire on $35K/year. Advantage: Achievable faster - 15-20 years typical. Trade-off: Requires significant lifestyle changes. Best for: Those willing to embrace minimalism.

Regular FIRE (Current Lifestyle)

Goal: Retire with same spending level as today. Example: If spending $50K/year, retire on $50K/year. Advantage: No lifestyle compromise in retirement. Time: 20-30 years typical. Best for: Balanced approach - maintain lifestyle in retirement.

Fat FIRE (Luxury Retirement)

Goal: Retire with MORE spending than today (travel, hobbies). Example: If spending $50K/year, retire on $75K+/year. Advantage: Enjoy retirement fully, more cushion. Time: 30-40+ years typical. Best for: Those with high income who want retirement flexibility.

Barista FIRE (Semi-Retirement)

Goal: Work part-time for health insurance + extra income, live off investments. Example: Work 20 hrs/week as consultant earning $25K/year, live on $25K from portfolio. Advantage: Retire earlier (10-15 years), stay engaged. Hybrid: Best of both worlds. Best for: Those wanting work-life balance in early retirement.

Coast FIRE (Stop Saving, Let Money Grow)

Goal: Stop saving at age 40-45, let invested money grow until 65+. Example: Invest aggressively until 45, then stop adding. $500K becomes $1.5M+ by 65. Advantage: Catch your breath, pursue passion projects. Path: 10-15 years aggressive saving, then coast. Best for: Those wanting break from saving hustle.

FIRE Calculation Methods

The 4% Rule (Most Popular)

Formula: FIRE Number = Annual Expenses ÷ 0.04 (or × 25). Example: $50K expenses → $1.25M needed ($50K ÷ 0.04). How it Works: Withdraw 4% year 1, adjust for inflation yearly after. Safety: ~95% success rate over 30-year retirements historically. Conservative: Some use 3% for more safety.

The 25x Rule (Same as 4%)

Formula: Save 25x your annual expenses. Example: $50K expenses → $1.25M (25 × $50K). Benefit: Easy mental math - multiply expenses by 25. Same as: The 4% rule (inverse relationship: 1 ÷ 0.04 = 25). Popular with: FIRE community for simplicity.

The Savings Rate Method

Formula: Years to FIRE = 1 ÷ (Savings Rate). Example: Save 50% of income → 2 years to FIRE (1 ÷ 0.5). Key Insight: Savings rate matters more than income. 30% savings rate: ~32 years. 70% savings rate: ~3.3 years. Best for: Understanding impact of lifestyle choices.

Increasing Savings Rate (Most Important Factor)

Savings Rate	Example (Income/Savings/Expenses)	Years to FIRE	FIRE Age (from 30)
10% Savings	$100K income, $10K save, $90K spend	~51 years	Age 81
25% Savings	$100K income, $25K save, $75K spend	~32 years	Age 62
50% Savings	$100K income, $50K save, $50K spend	~17 years	Age 47
70% Savings	$100K income, $70K save, $30K spend	~3 years	Age 33
80% Savings	$100K income, $80K save, $20K spend	~1.25 years	Age 31

Common Paths to FIRE

High Earner, High Saver Path

Income: $150K+ (high-earning career)
Spending: $50-70K/year (modest lifestyle despite high income)
Savings Rate: 60-70% ($90K-100K/year)
Years to FIRE: 10-15 years
FIRE Number: $1.25M-1.75M
Strategy: Maximize income, keep spending low, invest aggressively

Moderate Earner, Disciplined Saver Path

Income: $70-100K (solid middle-class career)
Spending: $40-50K/year (responsible budgeting)
Savings Rate: 40-50% ($30-40K/year)
Years to FIRE: 20-25 years
FIRE Number: $1M-1.25M
Strategy: Consistent saving, max retirement accounts, passive income

Entrepreneurial / Side Hustler Path

Income: $100K+ (primary job + side income)
Spending: $40K/year (reinvest income into business)
Savings Rate: 50-70%+ (unpredictable but high)
Years to FIRE: 5-15 years (variable)
FIRE Number: $1-2M (depends on goals)
Strategy: Build business, scale income, sell eventually

Slow & Steady Path (No Lifestyle Inflation)

Income: $60-80K (average career)
Spending: $40K/year (same as today for 30+ years)
Savings Rate: 25-35% ($15-25K/year)
Years to FIRE: 30-40 years
FIRE Number: $1M
Strategy: Avoid lifestyle inflation, max 401(k), time your side

                    Critical Insight: Your savings rate matters far more than investment returns. Saving 50% of income → 17 years to FIRE. Investment returns help but can't replace discipline. Focus on: (1) Increase income, (2) Decrease expenses, (3) Invest the gap.
                

Frequently Asked Questions

How much do I need for FIRE?

Use the 25x rule: FIRE Number = Annual Expenses × 25. If you spend $50K/year, need $1.25M. This supports 4% withdrawals = $50K/year forever.

How long does FIRE take?

Depends on savings rate. 50% savings rate = ~17 years. 70% = ~3 years. 25% = ~32 years. Savings rate is THE key variable, not just how much you earn.

Is 4% rule safe?

Historically yes (~95% success over 30 years). But it depends on: (1) Diversification, (2) Flexibility to cut spending, (3) Not retiring at market peak. 3% is more conservative.

What about healthcare before 65?

Big challenge. Options: (1) Barista FIRE (part-time job for insurance), (2) ACA marketplace (subsidies if low income), (3) Spouse's coverage, (4) Budget $5-10K/year.

Can I really retire at 40?

Yes - but requires 60%+ savings rate + high income. Or spend very little ($30K/year = $750K needed). Most FIRE people retire 45-50 with $100K+ income.

What if market crashes?

Risk: Portfolio down 40% just as you retire. Mitigation: (1) Keep 2-3 years cash, (2) Flexible spending, (3) Portfolio allocation (80/20 not 100% stocks), (4) Work part-time if needed.

Shouldn't I just keep working?

It's a choice. FIRE gives you freedom and optionality - you can still work, volunteer, or pursue passion projects. But you're not forced to. Worth the effort for most.

How do I actually retire?

When portfolio reaches FIRE number: (1) Reduce lifestyle to match 4% withdrawal, (2) Have plan for healthcare, (3) Keep emergency fund, (4) Diversify income (SS, pension if available).

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