Emergency Fund Calculator

Enter your essential monthly expenses, how many months you want covered, and what you've already saved. The calculator shows your target, the gap that remains, and how long it takes to get there at your chosen monthly saving.

$
mo
$
$
Enter your expenses and months of cover, then press Calculate target.

The emergency fund formula

Your target is simply your essential monthly spending multiplied by the number of months you want to cover. Subtract what you've already set aside to see the remaining gap:

target = monthly expenses × months gap = target − already saved months to go = gap ÷ monthly saving

Worked example

With $3,200 of essential expenses, a 6-month goal, $4,500 saved and $400 put aside each month:

Target: 3,200 × 6 = $19,200.
Gap: 19,200 − 4,500 = $14,700.
Time to fully funded: 14,700 ÷ 400 ≈ 37 months (just over 3 years).

How many months should you keep?

Your situationSuggested cover
Dual income, stable jobs, no dependents3 months
Single income or some job risk4–6 months
Variable income, self-employed, or sole earner6–12 months
Dependents or health concerns6+ months
Why it matters: the Federal Reserve's 2023 Economic Well-Being of U.S. Households report found many adults could not cover an unexpected $400 expense with cash. An emergency fund is the buffer that keeps a surprise bill from becoming high-interest debt.

Where to keep it

Keep the fund somewhere liquid and separate from day-to-day spending — a high-yield savings or money-market account at an FDIC-insured bank. You want to reach the cash within a day or two but not be tempted to spend it. Don't invest an emergency fund in stocks: markets can drop exactly when a job loss or recession forces you to draw on it.

Frequently asked questions

How much should an emergency fund be?

A common guideline is three to six months of essential living expenses. Use three months if you have stable, dual income and little debt; lean toward six months or more if your income is variable, you are a single earner, or you support dependents.

What expenses should the fund cover?

Only essentials you could not skip: rent or mortgage, utilities, groceries, insurance, minimum loan payments and transport. Leave out discretionary spending like dining out, subscriptions and holidays — the fund is for survival, not lifestyle.

Where should I keep an emergency fund?

In a separate, liquid, FDIC-insured account such as a high-yield savings account or money-market account — somewhere you can reach the cash within a day but won't spend it by accident. Avoid investing it in stocks.

Should I build it before paying off debt?

A common approach is to save a small starter fund (around one month of expenses) first, then attack high-interest debt, then return to fully fund three to six months.

MB
Mustafa Bilgic · Editor, Calcool
The three-to-six-month guideline reflects mainstream personal-finance practice; figures on household cash buffers come from the Federal Reserve's Economic Well-Being of U.S. Households. General education, not financial advice. Last updated 25 June 2026.

Related calculators

🎯 Savings Goal Calculator🧮 Net Worth Calculator📊 50/30/20 Budget Rule⚖️ Debt-to-Income Calculator💳 Credit Card Payoff Calculator🛟 Build an Emergency Fund