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Emergency fund calculator
See how big your safety net should be and how long it takes to build.
How much to save
Use the calculator above to find your number. It multiplies your essential monthly expenses by the months of coverage you choose, subtracts what you already have saved, and divides the gap by what you can put away each month. The result is how many months it will take to reach your goal.
How many months should you pick? NerdWallet calls three to six months of living expenses “a good rule of thumb.” Northwestern Mutual adds that some households need more:
| Your situation | Suggested coverage |
|---|---|
| Renter, steady paycheck, no kids, flexible lease | Under 6 months may be enough |
| Two steady incomes, typical responsibilities | About 6 months |
| Single income, sole provider or single parent | 6 to 12 months |
| Self-employed or uneven income | 6 to 12 months |
Sources: NerdWallet, Aug 2026. Northwestern Mutual, Jun 2026.
This is general information, not financial advice. Your own job security, health and family situation matter more than any rule of thumb.
What counts as essential expenses
An emergency fund covers what you must pay to keep life running if your income stops: housing, utilities, food, transportation, insurance, health care and minimum debt payments. It does not need to cover dining out, vacations or new clothes.
For a starting point, here is what the average US household (a “consumer unit” in BLS terms) spent per month in 2024 on the biggest categories.
| Category | Per year | Per month* |
|---|---|---|
| Housing (incl. utilities) | $26,266 | $2,189 |
| Transportation | $13,318 | $1,110 |
| Food at home | $6,224 | $519 |
| Health care | $6,197 | $516 |
| Core essentials total | $52,005 | $4,334 |
| All spending | $78,535 | $6,545 |
Source: BLS Consumer Expenditure Survey, 2024 data, released Dec 2025. *Monthly figures and the essentials total are our calculation (annual divided by 12).
At $4,334 a month, three months comes to about $13,000 and six months to about $26,000 (our calculation). Your real number may be much lower or higher, so plug in your own bills. If your car costs are a big line, our true cost of owning a car guide can help you size them.
How many Americans have a cushion
Many households are not there yet. The Federal Reserve’s survey of 2025, released in May 2026, found:
| Measure (all adults, 2025) | Share |
|---|---|
| Would cover a $400 expense with cash or its equivalent | 63% |
| Would put a $400 expense on a credit card and pay over time | 15% |
| Could not pay a $400 expense by any means | 12% |
| Have savings for 3 months of expenses | 55% |
| Could not cover 3 months by any means | 30% |
Source: Federal Reserve, Economic Well-Being of U.S. Households in 2025, May 2026.
Income makes a big difference. Only 21% of adults with family income under $25,000 had three months saved, compared with 75% of those earning $100,000 or more. By age, 37% of adults 18 to 29 had a three-month fund, versus 71% of those 60 and older.
Where to keep your emergency fund
The money should be safe, easy to reach and earning something. NerdWallet recommends a savings account, ideally a high-yield one. Its fall 2026 list included savings accounts paying around 3.75% to 3.85% APY, though rates change often.
Check that the bank is FDIC insured. According to the FDIC, deposits are insured to at least $250,000 per depositor, per ownership category, at each insured bank. That covers savings, checking, money market deposit accounts and CDs. It does not cover stocks, bonds, mutual funds, annuities or crypto, which is one reason those are a poor fit for money you may need next week.
Keeping the fund at a different bank from your checking account can make it a little harder to dip into for non-emergencies.
How to build it step by step
- List your essentials. Add up rent or mortgage, utilities, groceries, transportation, insurance, health costs and minimum debt payments for one month.
- Pick your months. Choose 3 to 6, or more if you have one income or uneven pay, and enter both numbers in the calculator above.
- Set a starter goal. If the full target feels huge, aim for $500 first. NerdWallet notes that saving $10 a week would pass $500 within a year.
- Automate it. Schedule a transfer to savings on payday. A 50/30/20 budget can help you find the monthly amount.
- Add windfalls. Tax refunds, bonuses and gifts can close the gap faster.
- Refill after you use it. NerdWallet points out the fund is meant to be tapped and replenished, so using it before you hit your goal is fine.
Here is an example using the emergency fund calculator: essentials of $4,000 a month, a 6-month goal of $24,000, $3,000 already saved and $500 saved each month. That works out to 42 months to reach the goal (our calculation). Raising the monthly amount to $700 cuts it to 30 months.
What counts as an emergency
An emergency fund is for costs that are urgent, necessary and unexpected. NerdWallet’s examples include car repairs, medical bills and job loss. Other common ones are a broken furnace, an urgent home repair, or travel for a family crisis. If your water heater fails, for example, our water heater replacement cost guide shows what that bill can look like. Pet owners should plan for surprise vet bills too; our cost of owning a dog guide lists typical emergency claims.
Things you can see coming, such as holiday gifts, annual insurance premiums or a planned trip, are better handled with separate savings goals. That keeps your emergency balance intact for the surprises it is meant to cover. If you do need to use it, that is exactly what it is for. Just restart your monthly transfers until it is back to full.
Big planned costs, like a wedding, deserve their own savings goal so they do not drain your safety net.
See how we research every number on our method page, or browse more saving and investing guides.
Common questions
How much should be in an emergency fund?
Three to six months of living expenses is the usual rule of thumb, according to NerdWallet. Northwestern Mutual suggests 6 to 12 months if you are a sole provider, self-employed or have uneven income.
How many Americans could cover a $400 emergency?
In the Federal Reserve's survey of 2025, 63% of adults said they would cover a $400 expense with cash or its equivalent. 12% said they could not pay it by any means.
Is money in a high-yield savings account safe?
At an FDIC-insured bank, savings, checking, money market deposit accounts and CDs are insured to at least $250,000 per depositor, per bank, per ownership category. Stocks, bonds, mutual funds and crypto are not covered.
What if 3 months of expenses feels out of reach?
Start with a smaller first goal. NerdWallet uses $500 as an example and notes that saving $10 a week would pass $500 within a year.
Sources
Every number above comes from these pages. We list the date each page showed when we checked it.
- Federal Reserve, Economic Well-Being of U.S. Households in 2025, Savings and Investments
- U.S. Bureau of Labor Statistics, Consumer Expenditures 2024
- NerdWallet, Emergency Fund Calculator
- Northwestern Mutual, How Much Should I Save in an Emergency Fund?
- FDIC, Understanding Deposit Insurance
Estimates are for general information only. Get written quotes from licensed local pros before you decide.
- Passed Level II of the CFA® Program
- Canadian Securities Course (CSC)
- Conduct and Practices Handbook (CPH)
Sepehr Parsa is a financial planner and the founder and editor of DollarMap. He has passed Level II of the CFA Program and completed the Canadian Securities Course (CSC) and the Conduct and Practices Handbook (CPH) course. He writes and edits our guides on cars, home repairs, budgeting, saving and investing, and checks that every number has a source.
“In a slowing economy, a budget is what keeps you afloat.”
How we check every number
