Financial Independence Number Calculator (Free)
Your financial independence number is the portfolio size that makes work optional: multiply your annual spending by 25, based on the 4% safe withdrawal rate. Spend $40,000 a year and your FI number is $1,000,000. Use the free calculator below to personalize it — no signup, and every calculation runs privately in your browser.
Your data stays in your browser — nothing is stored on our servers or shared with anyone.
Adjust for Inflation
Show values in today's purchasing power
Your Custom Fields
No custom fields yet. Add your own expenses, income, or one-time costs to personalize your plan.
Your Enough Plan
Enough Number: $1,500,000
Projected: $855,707
Growth Projection
Timeline
Monthly Savings Target
$876
per month to reach your goal
Current: $500
You need $376 more per month
That's about $29 per day
What If?
+$100/mo
Add $100 per month
31 mo. sooner
$1,026,848
+$200/mo
Add $200 per month
56 mo. sooner
$1,197,990
-2% return
Bear market scenario
123 mo. later
$554,231
What If You Saved Your Next Raise?
| Scenario | Final Monthly | Total Saved (10yr) |
|---|---|---|
| Save Nothing | $500/mo | $85,526 |
| Save 50% | $640/mo | $94,512 |
| Save ALL | $814/mo | $104,693 |
Saving ALL your raises instead of nothing nets you $19,167 more over 10 years.
Life Seasons
Add upcoming life events to see how they affect your monthly budget.
Click an event above to add it to your timeline.
How You Compare
Significantly below median — but every dollar counts
Recommended: 1-2x income
Key Insights
- At your current pace, you'll reach enough by April 2069.
- You're 57% of the way to your enough number of $1,500,000.
- At this rate, you'll reach your goal 7.8 years late.
- Increasing your contribution by $400/month would put you on track to reach your goal on time.
- Increasing contributions by just $50/month could shave 16 months off your timeline.
- The 4% rule suggests you need 25x your annual spending ($1,500,000).
Coach's Corner
Pay Yourself First
Transfer savings the day you get paid, not at the end of the month. You can't spend what you've already saved. This single habit separates savers from spenders.
Export Results
What Salary Do I Need?
To reach $1,500,000 by saving 20% of your income, you'd need to earn at least $52,588/year.
Are You Retiring FROM Something or TO Something?
If you're counting down the days to retirement, maybe the problem isn't money — it's passion. A 2-minute assessment can tell you if a career change might be the real answer.
Take the Passion Assessment → MyPassionJobPrep for Your Next Role
Practice interview questions tailored to the salary you need to hit your "enough" number.
Your Enough Plan
Enough Number: $1,500,000
Projected: $855,707
Growth Projection
Timeline
Monthly Savings Target
$876
per month to reach your goal
Current: $500
You need $376 more per month
That's about $29 per day
What If?
+$100/mo
Add $100 per month
31 mo. sooner
$1,026,848
+$200/mo
Add $200 per month
56 mo. sooner
$1,197,990
-2% return
Bear market scenario
123 mo. later
$554,231
What If You Saved Your Next Raise?
| Scenario | Final Monthly | Total Saved (10yr) |
|---|---|---|
| Save Nothing | $500/mo | $85,526 |
| Save 50% | $640/mo | $94,512 |
| Save ALL | $814/mo | $104,693 |
Saving ALL your raises instead of nothing nets you $19,167 more over 10 years.
Life Seasons
Add upcoming life events to see how they affect your monthly budget.
Click an event above to add it to your timeline.
How You Compare
Significantly below median — but every dollar counts
Recommended: 1-2x income
Key Insights
- At your current pace, you'll reach enough by April 2069.
- You're 57% of the way to your enough number of $1,500,000.
- At this rate, you'll reach your goal 7.8 years late.
- Increasing your contribution by $400/month would put you on track to reach your goal on time.
- Increasing contributions by just $50/month could shave 16 months off your timeline.
- The 4% rule suggests you need 25x your annual spending ($1,500,000).
Coach's Corner
Pay Yourself First
Transfer savings the day you get paid, not at the end of the month. You can't spend what you've already saved. This single habit separates savers from spenders.
Export Results
What Salary Do I Need?
To reach $1,500,000 by saving 20% of your income, you'd need to earn at least $52,588/year.
Are You Retiring FROM Something or TO Something?
If you're counting down the days to retirement, maybe the problem isn't money — it's passion. A 2-minute assessment can tell you if a career change might be the real answer.
Take the Passion Assessment → MyPassionJobPrep for Your Next Role
Practice interview questions tailored to the salary you need to hit your "enough" number.
Enough Number
$1,500,000
Progress
57%
What Is a Financial Independence Number?
Your financial independence (FI) number is the amount of invested money that generates enough to cover your living expenses indefinitely — the point where work becomes a choice, not a necessity. The formula: FI number = annual expenses × 25, the inverse of the 4% safe withdrawal rate. Withdraw 4% of your portfolio each year, adjusted for inflation, and historically a diversified portfolio has sustained those withdrawals for 30+ years.
Worked Example
Say your household spends $48,000 a year ($4,000/month). Your FI number is 48,000 × 25 = $1,200,000. If you already have $200,000 invested and add $2,000 a month at a 6% average return, the calculator projects you cross $1.2M in roughly 21 years — and shows the exact month, your progress percentage, and what saving $100 more per month would change.
The most powerful lever isn't earning more — it's spending less. Cutting $500/month from expenses reduces your FI number by $150,000 and frees up $500/month to invest.
How This Calculator Is Different
Enough-focused. Most FI calculators implicitly push you toward "as much as possible." This one is built on the enough philosophy: define the life you actually want, price it, and stop there. A smaller, honest number is reachable years earlier than an inflated one. Not sure what your number should be? Start with how much money is enough.
Personalized beyond 25x. Adjust the withdrawal rate (3–5%), and offset your number with expected Social Security or pension income — both reduce how much your portfolio alone must cover.
No signup, fully private. There is no account and no server-side processing: every calculation runs client-side in your browser, and your inputs stay on your device.
How Long to Reach FI
Your savings rate is the key variable. At a 50% savings rate, you can reach FI in about 17 years. At 70%, it's about 8.5 years. The math is remarkably consistent regardless of income level, because a higher savings rate both grows your portfolio faster and shrinks the number you need.
Frequently Asked Questions
Related Calculators
How Much Is Enough?
Calculate your personal enough number
FIRE Calculator
Find your FIRE number — the amount that makes work optional — and the date you reach it based on your savings rate and returns.
Coast FIRE
How much is enough to stop saving and coast?
Retirement / Financial Independence
How much is enough to stop working?