FIRE number vs emergency fund: which cash first?
The emergency fund is months of expenses in cash. The FIRE number is 25× annual spending in investments. Fill the cash sleeve first.
At $40,000 annual spending, FIRE at 4% is $1,000,000. The emergency fund at 6 months is still only $20,000 — fund that first.
The number you need before you pay
The fire number vs emergency fund is for this decision, not a definition. At $40,000 annual spending, FIRE at 4% is $1,000,000. The emergency fund at 6 months is still only $20,000 — fund that first.
Enter Annual Expenses, Safe Withdrawal Rate, Current Savings, Annual Savings. The page returns FIRE Number, Years to FIRE, Goal Achieved. Nothing is stored unless you copy it.
What to enter
Use the real quote, bill, or salary — not a round number you wish were true. If a field is a rate, use the one on the offer, not last month’s headline average.
The next check
After this number, run best emergency fund calculator, how long to save for a purchase. The cluster page is best emergency fund calculator.
Frequently asked questions
Should I invest before I have an emergency fund?
Usually no. FIRE math assumes you can hold through a job loss. Cash covers the first months.
What is the 4% rule in a FIRE calculator?
A planning shortcut: year-one withdrawal ≈ 4% of the portfolio. It is not a guarantee.
FIRE number vs emergency fund: which cash first? is part of the Finance cluster on Qalculators. Use the related tools below to run the numbers instead of estimating by hand.
Results depend on the values you enter. Treat them as planning estimates and confirm important decisions with a professional when needed.