Emergency fund calculator
An emergency fund is the money that covers your normal expenses while you have no income. It is calculated from spending, not salary: take what you spend in a month and multiply it by the number of months you want covered. Three to six months is the usual target.
Short version
- The fund is a multiple of monthly expenses, so the number starts with knowing what you spend.
- Three months is the floor, six months is the working target, twelve if your income is irregular.
- Keep it reachable within a day and stable in value, otherwise it fails at the moment you need it.
- If the full amount looks impossible, build it in steps: one repair, then one month, then the rest.
Target amount
$18,000
How many months should the fund cover?
The honest way to pick the number is to look at how long people are actually out of work. In July 2026 the median duration of unemployment in the United States was 10.5 weeks and the average was 24.9 weeks, according to the Bureau of Labor Statistics Current Population Survey. That gap between median and average is the whole argument: three months of expenses covers the typical case, and six months covers the long tail that drags the average up to nearly six months.
| Months covered | Who it fits |
|---|---|
| 3 | Salaried job in a field where hiring is steady, two incomes in the household, no dependents. |
| 6 | The default. Covers the average job search with room to spare, and most single-income households. |
| 12 | Self-employed, commission or seasonal income, a niche role with few employers, or a sole earner supporting a family. |
What counts as an emergency
A fund that gets spent on a sale is not a fund. The test is simple: the expense must be unexpected, necessary and urgent at once. A broken furnace in winter passes. A dental bill passes. A flight to a family emergency passes. A phone upgrade fails the test, and so does a holiday, no matter how much it is deserved. Planned but irregular costs, such as annual insurance or car registration, belong in a separate savings line, not in the emergency fund: they are known in advance, so they can be budgeted.
Where to keep it
Two requirements decide this, and they are not about yield. The money has to be available within a day, because emergencies do not wait for a settlement period. And the amount has to be stable, because a fund that drops fifteen percent in a bad month stops being insurance. That rules out anything locked for a term and anything priced by a market, however attractive the return looks. A separate savings account at a different bank from your everyday one works well: reachable, stable, and far enough away that you do not spend it by accident.
If you cannot save it all at once
Six months of expenses is a large number, and seeing it whole is what stops most people from starting. Break it into steps. The first step is one ordinary repair, roughly one month of a single spending category: a fridge dies, a tooth needs work. The second step is one month of expenses, after which you stop borrowing to reach payday. From there the fund grows by a month at a time, and every month you close removes a real risk. Move the money on the day you get paid rather than from whatever remains at the end of the month, because usually nothing remains.
Frequently asked questions
How much should be in an emergency fund?
Three to six months of your expenses in a typical situation, and up to twelve months if your income is irregular. If you spend $3,000 a month, that is $9,000 to $18,000. The calculator above works out the exact number from your own spending.
Is an emergency fund based on income or expenses?
On expenses. The fund exists to cover your obligations while income is paused, so the size is set by what you spend. Basing it on salary overstates the target for people who save a lot and understates it for people who spend more than they earn.
Where should I keep an emergency fund?
Somewhere you can reach within a day and where the amount does not move with the market. A high-yield savings account fits. Anything locked for a term or exposed to price swings does not, even at a higher return: this money is insurance, not an investment.
Emergency fund or paying off debt first?
Usually a small fund of one or two months first, then aggressive debt payoff. Without any buffer, the next repair or late paycheck sends you straight back to borrowing, which cancels the payoff.
Does rent count in the calculation?
Yes, if you pay it. Include every payment you would still owe with no income: rent or mortgage, utilities, groceries, insurance, minimum debt payments, transport. Leave out what you would cut immediately, such as travel and dining out.
The fund is built from expenses, so you need to know them
The calculator gave you a number, but it rests on one figure: what you actually spend in a month. From memory that figure is usually understated by about half. BudgetOK shows real spending by category, and category limits help you find the money the fund is built from.
More tools
Budget calculator
Income against spending, and what is left
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Source: U.S. Bureau of Labor Statistics, Current Population Survey, duration of unemployment, seasonally adjusted, July 2026 (series LNS13008276 median and LNS13008275 average). This material is general information and not individual financial advice.