FIRE Calculator

Calculate when you can achieve financial independence. See how your savings rate, returns, and expenses shape your path to early retirement.

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Enter your income and expenses, then click Calculate.

FIRE Number --
Years to FIRE --
Savings Rate --
Monthly Investment --
Current Progress --
Annual Passive Income at FIRE --
Inflation-Adjusted FIRE Number --
Inflation-Adjusted Years to FIRE --
0% FIRE

Path to Financial Independence

Year-by-Year Breakdown

Year Invested Profit Balance Progress

Tips

The 4% Rule Explained

Based on the Trinity Study, the 4% rule suggests that withdrawing 4% of your portfolio in the first year of retirement, then adjusting for inflation, gives a high probability your savings will last 30+ years.

Savings Rate Drives FIRE Speed

Your savings rate matters more than your income. A 50% savings rate leads to FIRE in roughly 17 years, while 70% can cut it to about 8 years — regardless of how much you earn.

Coast FIRE: A Flexible Milestone

Coast FIRE means you have saved enough that compound growth alone will reach your target by traditional retirement age — no more contributions needed. This opens the door to lower-stress work.

Don't Ignore Inflation

The value of money decreases over time. A FIRE target calculated today may not be enough in 20 years. Always check your plan with inflation adjustment enabled for a realistic picture.

Common Use Cases

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Early Retirement Planning

Determine how many years until you can retire based on your current income, expenses, and investment returns.

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Savings Rate Optimization

Simulate how reducing expenses accelerates your path to financial independence.

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Career Change Impact

Visualize how a salary increase or decrease affects your FIRE timeline.

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FIRE Target Calculation

Calculate the exact portfolio size needed to sustain your desired annual spending indefinitely.

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Semi-Retirement Analysis

Explore partial FIRE scenarios where part-time income supplements your portfolio withdrawals.

Frequently Asked Questions

What is FIRE?
FIRE stands for Financial Independence, Retire Early. It means accumulating enough investments so that passive income covers all your living expenses, giving you the freedom to stop working for money.
What is the 4% rule?
The 4% rule comes from the Trinity Study. It suggests that if you withdraw 4% of your portfolio in the first year of retirement and adjust for inflation each year after, your money has a high probability of lasting at least 30 years.
How is the FIRE number calculated?
Your FIRE number equals your annual expenses divided by your withdrawal rate. For example, if you spend $40,000 per year and use a 4% withdrawal rate, your FIRE number is $1,000,000.
How does savings rate affect FIRE?
A higher savings rate has a double effect: it increases the amount you invest AND reduces the expenses your portfolio needs to cover. This makes savings rate the single most powerful lever for reaching FIRE faster.
Is this calculator accurate for real financial planning?
This tool provides estimates for educational and planning purposes. Real markets are volatile and returns vary year to year. For important financial decisions, consult a qualified financial advisor.
What is the difference from the Investment Return Calculator?
The Investment Return Calculator shows how your money grows over time. The FIRE Calculator focuses specifically on when you can achieve financial independence — it calculates your target number and the years needed to reach it.
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