Cairn

The free FIRE calculator

How far are you from financial independence?

Hikers stack cairns so the next person can find the trail. Enter five numbers and see yours: your FI date, your coast point, and every marker between here and the summit. No signup, no email.

30

Retirement accounts, brokerage, cash you invest

$
$
$
5.0%

Real (after inflation). The long-run stock market average is ~5–7% real.

4.00%

4% is the classic rule; 3.5% is more conservative.

Financial independence
May 2048
21 yr 9 mo from now, at age 51
FI number
$1,375,000
Savings rate
35%
Invested / yr
$30,000

Projected net worth · today's dollars

$500k$1M$1.5M3035404550ageFI target $1.38M

Your cairn — the markers ahead

  1. Financial independenceMay 2048 · $1.38M
  2. Halfway stoneSeptember 2039 · $688k
  3. Coast point (retire at 65)July 2033 · $349k
  4. A quarter of the wayJune 2033 · $344k
  5. First 10% savedJune 2028 · $138k

Want the full trail map, not just the summit date?

Your personal FIRE roadmap: year-by-year plan, what moves your date, and a drawdown schedule to age 95.

Build my roadmap · $9

Coast FIRE calculator

The number where you can stop saving entirely and still retire on time — growth does the rest of the climb.

Drawdown calculator

How long will your savings actually last at your spending? The honest answer, month by month.

How the math works

Your FI number

Annual spending ÷ withdrawal rate. At the classic 4% rule that's 25× your spending — the pot that sustains you indefinitely.

Real returns

Everything is in today's dollars with inflation-adjusted returns, so the results mean what they say. No nominal-dollar illusions.

Monthly compounding

Contributions land monthly and compound monthly — the way saving actually happens, not a once-a-year approximation.