Welcome to InvestToFire: Your Journey to Financial Independence Starts Here
Welcome to InvestToFire — your free resource for mastering personal finance, investing strategies, and achieving Financial Independence, Retire Early (FIRE). Whether you're paying off your first debt, opening your first brokerage account, or modeling your FIRE date, you'll find practical tools and no-fluff guides here.
What Is FIRE?
FIRE stands for Financial Independence, Retire Early. At its core, it means building enough invested wealth that your portfolio generates more income than you need to live — making work optional, not mandatory.
The math is simpler than most people think:
Your FIRE Number = Annual Expenses × 25
Example: If you spend $50,000/year, you need $1,250,000 invested. With a 4% annual withdrawal rate, that portfolio lasts indefinitely (based on the Trinity Study's historical research).
The higher your savings rate, the faster you get there:
| Savings Rate | Years to FIRE |
|---|---|
| 10% | ~43 years |
| 25% | ~32 years |
| 50% | ~17 years |
| 70% | ~8.5 years |
Use our FIRE Calculator to find your personal number and timeline.
The 4 Types of FIRE
Not everyone wants the same retirement. InvestToFire covers all four main FIRE strategies:
1. Lean FIRE
Retire with $25,000–$40,000/year in spending. Requires the most frugality but the least capital (~$625K–$1M). Best for minimalists and those with low cost-of-living locations.
2. Regular FIRE
The "classic" FIRE path: $40,000–$80,000/year spending, roughly $1M–$2M invested. Balanced approach for most people with a median household income.
3. Fat FIRE
Retire with $100,000+/year in spending without lifestyle compromise. Requires $2.5M–$4M+ and a higher-income career. More runway needed, but more freedom in retirement.
4. Coast FIRE
Save aggressively early, then stop contributing and let compound interest grow your money to your FIRE number by traditional retirement age. Use our Coast FIRE Calculator to find your "coast number."
Free Financial Calculators (18 Tools)
Our calculator suite is completely free — no account required. Here are the most popular:
Retirement & FIRE Calculators
- FIRE Calculator — Find your FIRE number and exact retirement date
- Coast FIRE Calculator — Calculate how much you need invested today to coast to retirement
- Retirement Calculator — Plan traditional retirement savings with Social Security timing
- Withdrawal Strategy Calculator — Optimize 401k/IRA/Roth withdrawal order to minimize taxes
Investment Growth Calculators
- Compound Interest Calculator — See how investments grow with realistic variable returns
- Investment Return Calculator — Calculate CAGR, real vs nominal returns, and inflation-adjusted growth
- Dividend Calculator — Project dividend income and DRIP reinvestment over time
Savings & Debt Calculators
- Emergency Fund Calculator — Find your exact emergency fund target based on your situation
- Savings Goal Calculator — Calculate how much to save monthly for any goal
- Debt Payoff Calculator — Compare the snowball vs avalanche method with real savings numbers
Account-Specific Calculators
- 401k Calculator — Model employer match, contribution limits, and long-term growth
- Roth IRA Calculator — Project tax-free retirement growth and compare vs traditional IRA
- Net Worth Calculator — Track assets, liabilities, and your financial health over time
Start Here: Learning Path by Experience Level
Complete Beginner (Never Invested Before)
- Read: Compound Interest Explained — the foundational concept behind all wealth building
- Read: How to Start Investing with $1,000 — practical first steps
- Read: Best Index Funds for Beginners in 2026 — where to actually put your money
- Read: How to Build a 3-Fund Portfolio — the simple, proven approach
Intermediate (Saving but Want to Optimize)
- Read: 401k vs Roth IRA: Which Is Better? — maximize your tax-advantaged accounts
- Read: 2026 Roth IRA Limits and Backdoor Roth Strategy — advanced tax strategies
- Read: VOO vs VTI vs SCHD: Which ETF Wins in 2026? — optimize your fund selection
- Read: Tax-Loss Harvesting Guide 2026 — keep more of your gains
FIRE-Focused (Building Your Independence Plan)
- Read: Introduction to the FIRE Movement — understand the full landscape
- Read: Coast FIRE Explained — the lower-stress path to FI
- Read: Barista FIRE in 2026 — semi-retire while keeping benefits
- Use: FIRE Budget Calculator — model your income, expenses, and savings rate
- Use: FIRE Calculator — project your exact financial independence date
Why InvestToFire?
There are thousands of personal finance sites. Here's what makes this one different:
1. Free Calculators With Real Math Our 18 calculators use realistic variable return simulations, not just average return assumptions. The compound interest calculator, for example, models market volatility rather than a flat 7% — giving you results that match what actually happens in real markets.
2. No Product Recommendations or Affiliate Bias We don't promote specific brokerage accounts, robo-advisors, or financial products based on commissions. Every recommendation is based on what we'd actually use ourselves.
3. FIRE-First Perspective Most personal finance sites are written for people working until 65. InvestToFire is written for people who want to retire at 35, 45, or 50. Every calculator, article, and guide is built with that lens.
4. Current Information We update our 2026 content for current contribution limits, tax laws, and market conditions. No outdated advice from 2019.
Most Popular Content This Month
- Best AI Personal Finance Tools for FIRE Investors (2026) — Which AI apps actually help you retire early?
- FIRE Movement Statistics 2026 — 37% of Americans, Gen Z trends, and Camp FIRE data
- How to Recession-Proof Your Portfolio in 2026 — Practical steps for tariff uncertainty and market volatility
- VOO vs VTI vs SCHD: Which ETF Wins in 2026? — Data-backed comparison
- 2026 Roth IRA Contribution Limits and Backdoor Roth — Everything you need to know
Frequently Asked Questions
What is a good savings rate for FIRE? A savings rate of 50% or higher accelerates FIRE dramatically. But even 25–30% will get you to financial independence in about 30 years — far better than the traditional 10% savings rate advice.
How much money do I need to retire early? Use the 4% rule: multiply your annual spending by 25. If you spend $60,000/year, you need $1.5M invested. Our FIRE Calculator will give you a personalized number based on your current savings, contributions, and expected return.
Is the FIRE movement realistic for average-income earners? Yes. The math works on any income — it's about the gap between income and spending, not the absolute income level. Many FIRE achievers have done it on $60K–$80K household incomes by living below their means and investing consistently.
What's the difference between FIRE and just saving for retirement? Traditional retirement planning targets age 60–67 and assumes you'll work until then. FIRE typically targets 35–55, requires a higher savings rate (40–70% vs 10–15%), and relies on a longer investment horizon (30–50+ years). The FIRE community also focuses more on optimizing expenses (geoarbitrage, LCOL areas) not just income.
Should I pay off debt or invest first? It depends on the interest rate. If your debt is above 6–7% interest (most consumer debt and student loans), pay it off first. If below that (mortgages, subsidized student loans), invest while paying minimums. See our Debt Payoff Calculator for a personalized breakdown.
Ready to start? Calculate your FIRE number or browse our full blog for guides on every aspect of the journey.
Let's invest to FIRE together.