That Easy Toolbox

FIRE Calculator

Model your path to Financial Independence and Early Retirement. Configure contributions, withdrawal rate, pensions, and mortgage to see balances and drawdown.

Profile
Simulation end age (e.g., 95)
Drawdown (Retirement)
%
Percent of portfolio at FIRE age withdrawn each year.
$
%
Used to compute Real values
Work Pension
$
Investments
Name Taxable Current Annual Contrib Return % Fee % Access Age
Use type "Non-Taxable" for tax-advantaged accounts with access restrictions.
Assets & Debts
Name Type Balance Rate % Annual Payment
Assets grow at the given rate. Debts accrue interest and are reduced by Annual Payment. To include home equity in Net Worth, add your home as an Asset and your mortgage as a Debt.
Portfolio at FIRE $0
Portfolio at FIRE (Real) $0
End Balance (Plan End) $0
End Balance (Real) $0
Success Note —
Age Net Worth Contributions Returns Withdrawals Pension Income End Balance Taxable Balance Non-Taxable Balance Mortgage Balance
Net Worth equals total assets (investments + assets) minus debts at the start of each year.

Portfolio Balance

Withdrawals vs Pension

Risk Analysis (Monte Carlo)

Balance Fan Chart

End Balance Distribution

A FIRE (Financial Independence, Retire Early) calculator helps you project when you can retire and how sustainable your withdrawals will be, accounting for contributions, growth, pensions, and debts.

We simulate yearly balances from your current age to your chosen end age. Before FIRE, we apply contributions and investment returns. After FIRE, we apply your withdrawal rate and pension income. Mortgage is modeled separately and shown alongside.

FATFIRE: Financial independence with a higher spending target for a more luxurious lifestyle. Typically requires a larger portfolio and/or lower withdrawal rate.

LeanFIRE: Financial independence with a minimalist budget. Lower spending target and often an aggressive savings rate to reach FI faster.

CoastFIRE: You’ve saved enough early so that, even without further contributions, compound growth is expected to reach your retirement target by traditional retirement age. You can “coast” with reduced or zero savings.

BaristaFIRE: Partial financial independence where part-time work (or a passion job) covers some expenses or provides benefits like health insurance, reducing the required portfolio withdrawals.

  • FATFIRE: Increase target withdrawals (higher withdrawal rate or higher spend proxy) and consider lower return assumptions. Use Risk Analysis for probability bands.
  • LeanFIRE: Lower withdrawal rate or reduce annual spend proxy; emphasize higher savings contributions before FIRE.
  • CoastFIRE: Set contributions to zero after you hit a certain balance or age; check if end balance still meets goals without further contributions.
  • BaristaFIRE: Add a small "Asset" income proxy (negative withdrawal equivalent) or reduce withdrawal needs by adding pension-like income in earlier years.

The 4% rule is a common starting point, but consider a range (3%–5%) depending on risk tolerance, asset mix, and retirement horizon. Try different rates and run Risk Analysis.

Yes. Add debts under Assets & Debts. Debts accrue interest and are reduced by your annual payment. The table tracks your Mortgage Balance over time.

Monte Carlo simulates many return paths using your mean returns and volatility assumptions. It shows probability bands and success rate, but real outcomes vary.

Related Financial Tools:

What is a FIRE Calculator?

Our FIRE calculator helps you estimate when you can reach financial independence and how sustainable your retirement spending is. It models contributions, investment returns, fees, pension income, and withdrawals, with the flexibility to track multiple pots (Taxable and Non‑Taxable) and debts. You can also run a Monte Carlo risk analysis to understand ranges of outcomes.

FATFIRE vs LeanFIRE vs CoastFIRE vs BaristaFIRE

How to Use This FIRE Calculator

  1. Enter your age, FIRE age, withdrawal rate, and inflation.
  2. Add investments (Taxable / Non‑Taxable) with return and fee assumptions.
  3. Add assets/debts, and pension income details.
  4. Click Calculate and review balances, tables, and charts.
  5. Run Risk Analysis to see percentile outcomes and success probability.

Frequently Asked Questions

What withdrawal rate should I use? The 4% rule is a common starting point, but you can test 3%–5% and use risk analysis to gauge sustainability.

Do returns include fees and inflation? You can set fees per pot and an inflation rate. Risk Analysis lets you add volatility assumptions per pot.

Can I share my plan? Use the Copy Link button to create a permalink with all inputs.