FIRE Calculator
Free · no sign-up · reviewed July 2026
FIRE means Financial Independence, Retire Early: saving enough that work becomes optional. This calculator turns that into a date. Enter what you earn, spend, and have invested, and it shows your FIRE number and how many years until you hit it.
The big lever is your savings rate. Watch how much sooner FIRE arrives when the gap between income and spending grows.
Drag to adjust
You could reach FIRE in
23 years
A $1,125,000 nest egg, around age 53
💡 Saving $25,000 a year (36% of your take-home) puts you on track for your $1,125,000 number in about 23 years, around age 53. At $45,000 a year of spending, that's regular FIRE territory. Raising your savings rate is the single fastest way to pull that date closer.
$1,125,000
Your FIRE number
4% rule
36%
Savings rate
of take-home
53
FIRE age
in 23 yrs
- Net worth$1,127,908
- FIRE number$1,125,000
- Annual savings
- $25,000
- Savings rate
- 36%
- Your FIRE number
- $1,125,000
- Years to FIRE
- 23
- Age at FIRE
- 53
The 2-minute guide
Your number is 25x your spending
At the 4% rule, you're financially independent once your investments reach about 25 times your annual spending. Spend $45,000 a year and that's roughly $1.1 million. Notice it's driven by spending, not income: cut what you spend and the target drops.
Savings rate is everything
The share of your take-home pay you invest matters far more than your salary. A higher rate builds the nest egg faster and shrinks the lifestyle you have to fund, so it moves the finish line from both ends. Try nudging spending down and watch the years fall.
Returns are after inflation
This uses a return net of inflation (a 'real' return), so your FIRE number is in today's dollars. Many long-term plans assume about 5% real for a stock-heavy portfolio, but returns are never guaranteed and vary year to year.
Plan for the early years
Retiring decades early means covering health insurance before Medicare and surviving market dips without a paycheck. A cash buffer and a slightly lower withdrawal rate (closer to 3.5%) add a margin of safety.
Frequently asked questions
How is my FIRE number calculated?
It's your annual spending divided by your withdrawal rate. At the classic 4% rule that's spending times 25. Spend $50,000 a year and your FIRE number is about $1.25 million.
What is a good savings rate for FIRE?
Higher is faster. Saving 25% of take-home pay points to roughly 32 working years, 50% to about 17, and 65% to around a decade, starting from zero. Most FIRE plans push the savings rate as high as comfortably possible.
What return rate should I use?
This calculator uses a return after inflation, so results are in today's dollars. Around 5% real is a common long-run assumption for a stock-heavy portfolio, though actual returns vary and aren't guaranteed.
What are the types of FIRE?
They mostly differ by budget: Lean FIRE (frugal, smaller number), regular FIRE, Chubby FIRE (comfortable), and Fat FIRE (high spending). Coast and Barista FIRE describe paths there. See the FIRE guide for a full breakdown.
Related calculators
Related guides
Embed this calculator
Free to use on your own site. Paste this where you want it to appear:
<iframe id="calcwise-fire-calculator" src="https://calcwisehq.com/embed/fire-calculator" title="FIRE Calculator by CalcWise" width="100%" height="640" style="border:0;max-width:600px;width:100%" loading="lazy"></iframe>
<script>window.addEventListener("message",function(e){if(e&&e.data&&e.data.type==="cw-embed-height"&&e.data.slug==="fire-calculator"){var f=document.getElementById("calcwise-fire-calculator");if(f){f.style.height=e.data.height+"px"}}});</script>
<p style="font:13px/1.4 system-ui,sans-serif;text-align:center;margin:6px 0">Powered by <a href="https://calcwisehq.com/calculators/fire-calculator" target="_blank" rel="noopener">CalcWise</a></p>The little “Powered by CalcWise” link keeps it free. Thanks for the credit!