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Retirement calculator

Estimate your retirement number, the gap against your current trajectory, and the monthly contribution needed to close it.

Create a free account to save your results, track progress over time, and unlock guide-connected features.

Retirement assumptions

$1,500,000
Your retirement number
$1,135,191
Gap vs current trajectory
$1,638
Required monthly contribution
25
Years to retirement
$1,500,000
FIRE number at 4%
$1,216
Monthly income from current savings

FIRE target scenarios

Lean FIRE

$1,050,000

Essential spending only at a 4% withdrawal rate.

Base FIRE

$1,500,000

Current desired income at the classic 4% rule.

Buffered FIRE

$1,971,429

15% spending buffer and 3.5% withdrawal rate.

Risk flags

Inflation-adjusted conservative trajectory misses the base FIRE number.

Withdrawal rate is above your selected safe-withdrawal assumption.

Action plan

  1. 1. Build current savings toward $349,498 to reach Coast FIRE without new contributions.
  2. 2. Separate income needs into $42,000 essentials and $18,000 lifestyle spending before finalizing the target.
  3. 3. Buffered FIRE needs either more savings, a later retirement age, or lower spending by about $1,389,308.

FIRE date estimator

282
Estimated months to FIRE
23.5
Estimated years to FIRE
Nov 2049
Projected FIRE date
Progress to FIRE target5.7%

Coast FIRE and state pension

$1,200,000
Retirement number with benefit
20.0%
Benefit coverage
Not yet
Coast FIRE milestone

Withdrawal phase modelling

$5,000
Monthly retirement income
Lasts
Portfolio runout age
Higher
Lasting probability estimate

Savings rate impact table

Savings rateYears to FIRERetirement age
10%36.171.1
15%32.667.6
20%29.964.9
25%27.762.7
30%25.860.8
35%24.359.3
40%22.857.8
45%21.756.7
50%20.655.6

How to use the retirement calculator

Enter your age, target retirement age, desired annual income, current savings, and expected return. The calculator estimates a FIRE-style retirement number using a 4% withdrawal assumption and compares it with your projected savings trajectory.

The monthly contribution estimate is a pure maths output. It does not reference any country-specific accounts, public pension systems, tax rules, or benefits. That keeps the tool useful across the US, EU, and other markets.