FIRE: Retirement Calculator app iconFIRE

FIRE guides

Plain-English explainers on financial independence and early retirement, each with the FIRE calculator built in.

Buyer's guide

FIRE calculator app

What to look for in a FIRE calculator app for iPhone, and how this one is built.

Explainer

Retirement countdown app

A countdown to your computed financial-independence date, not one you type in.

The FIRE app

Retirement countdown widget

A home-screen widget that counts down to your computed FIRE date and tracks your progress.

Explainer

What is FIRE?

The movement, the math, and the number you're aiming for.

Calculator

When can I retire?

Find the year your investments reach your FIRE number.

Calculator

What's my FIRE number?

The formula, an example, and a calculator.

Calculator

How much to retire early?

The number you need at 50, 55, or 60, and what age changes.

Explainer

The 4% rule

Where the safe-withdrawal rule of thumb comes from, and its limits.

FIRE variant

Coast FIRE

The point you can stop saving and still retire on time.

FIRE variant

Barista FIRE

Part-time income bridges the gap, so you need less invested.

FIRE variant

Lean FIRE

Early retirement on a deliberately frugal budget.

FIRE variant

Chubby FIRE

The comfortable middle: more than standard, short of Fat.

FIRE variant

Fat FIRE

Retire early without cutting back. The largest target.

Calculator

Monte Carlo simulation

Will your money last? The odds across thousands of market paths.

Calculator

Social Security & pensions

How later income lowers your number and moves your date.

Accounts & access

Accessing money before 59½

The penalty-free bridges from your retirement date to 59½.

Accounts & access

72(t) SEPP

Penalty-free withdrawals before 59½: the rules and the risks.

Accounts & access

The Rule of 55

Tap your 401(k) penalty-free if you leave work at 55 or later.

Accounts & access

Rule of 55 vs 72(t)

Two ways to reach retirement money early, side by side.

Accounts & access

457(b) & early retirement

The plan with no early-withdrawal penalty after you separate.

Accounts & access

Roth vs Traditional IRA

Which to choose, and the Roth conversion ladder for FIRE.

Accounts & access

Roth conversion ladder

The signature FIRE move: convert, wait five years, withdraw penalty-free.

Accounts & access

Backdoor Roth IRA

How high earners fund a Roth above the income limits, and the pro-rata trap.

Accounts & access

RMDs explained

Forced withdrawals at 73, and why Roth conversions come first.

Before Medicare

Health insurance before 65

Covering the gap between an early retirement and Medicare.

Put your plan on your home screen. FIRE: Retirement Calculator finds your FIRE number free and counts down to your financial-independence date on your iPhone. No account, no subscription. Download on the App Store.