FIRE Calculator: Financial Independence Retire Early
Find your FIRE number, the portfolio that covers your annual expenses at your chosen safe withdrawal rate, and see how many years of saving stand between you and it. Compare LeanFIRE, Traditional FIRE, FatFIRE, BaristaFIRE, and CoastFIRE targets side by side.
FIRE Calculator
Calculate your path to Financial Independence and Early Retirement with comprehensive parameters
Choose Your FIRE Type
Click on a FIRE type below to select it and see your personalized calculations
Your FIRE Results
Based on your inputs, here's your path to Financial Independence
You reach financial independence in 25.8 years, at age 56.
Change any input above and this updates instantly.
Traditional FIRE
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FIRE Journey Projection
Projected portfolio growth against the LeanFIRE, Traditional FIRE, and FatFIRE targets, based on your inputs.
What is FIRE? Financial Independence Retire Early Explained
by Alan Brilliant
Understanding the FIRE movement and how to calculate your path to financial independence
The FIRE Movement
FIRE (Financial Independence Retire Early) is a lifestyle movement focused on extreme savings and investment that allows participants to retire far earlier than traditional retirement plans would allow. The key principle is to save and invest 50-70% of income to accumulate 25-30 times your annual expenses, enabling you to live off investment returns using the 4% withdrawal rule.
FIRE Variations
LeanFIRE
Living on $40,000 or less per year. Requires roughly 25x your lean annual spending—about $1 million at a 4% withdrawal rate, more once healthcare costs are added. Focuses on extreme frugality and minimalist lifestyle.
Traditional FIRE
Maintaining your current lifestyle in retirement. Requires 25x your annual expenses. Most common FIRE approach using the 4% withdrawal rule.
FatFIRE
Living luxuriously in retirement on about 1.5x your current annual expenses. Requires roughly 37.5x your current annual expenses invested at a 4% withdrawal rate.
BaristaFIRE
Partial financial independence with part-time work covering some expenses. Allows earlier "retirement" with reduced investment requirements.
CoastFIRE
Having enough invested that compound growth will reach FIRE by normal retirement age. Allows you to "coast" without additional retirement savings.
The 4% Rule
The cornerstone of FIRE planning is the 4% withdrawal rule, based on the Trinity Study. This rule suggests that you can safely withdraw 4% of your investment portfolio annually in retirement without running out of money over a 30-year period.
FIRE Number Formula:
FIRE Number = Annual Expenses × 25
Or: FIRE Number = Annual Expenses ÷ 0.04
Example: $60,000 annual expenses × 25 = $1,500,000 FIRE number
Key FIRE Principles
- High Savings Rate: Save 50-70% of income (vs. traditional 10-15%)
- Aggressive Investing: Invest in low-cost index funds for long-term growth
- Expense Optimization: Reduce unnecessary expenses without sacrificing happiness
- Income Maximization: Increase earning potential through career advancement or side hustles
- Geographic Arbitrage: Consider lower-cost living areas to stretch your FIRE number
- Tax Optimization: Use tax-advantaged accounts and strategies
Is FIRE Right for You?
FIRE Might Work If:
- You have a high income relative to expenses
- You're willing to live frugally for years
- You have clear post-retirement goals
- You're comfortable with investment risk
- You want flexibility and time freedom
Consider Carefully If:
- You have high healthcare needs
- You support dependents financially
- You already plan on working for a long time
- You prefer guaranteed income sources
- You're risk-averse with investments
What's changed on this page
- August 7, 2026 CoastFIRE and BaristaFIRE results no longer claim you reach financial independence. Coast now says you can stop contributing at that point and still retire at 65, barista says part-time income covers the rest, and the coast card reports the income its traditional FIRE number supports from 65 instead of applying the withdrawal rate to a discounted present value.
- August 6, 2026 Every projection now uses a real, inflation-adjusted return, so the FIRE number, the timeline and the chart are all in today's dollars, and the emergency fund is held out of investable assets. Healthcare costs and geographic arbitrage adjust the FIRE target itself rather than the income figure, and the success-rate table was reset to Trinity study values: 98% at a 4% withdrawal rate, 90% at 4.5%. Twelve inputs were removed, eleven of which fed no calculation at all: net worth, stock and bond allocation, income and expense growth, the two tax rates, Social Security and the part-time start and end ages.
- September 27, 2025 Published.
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