Emergency Fund Calculator
Find out how big your emergency fund should be — and how long it'll take to get there at your current savings rate.
How to use this emergency fund calculator
Enter your essential monthly expenses — the things you'd still have to pay if your income stopped: rent or mortgage, utilities, groceries, insurance, minimum debt payments, transport. Leave out the nice-to-haves. Choose how many months of cushion you want, add what you've already set aside, and tell us what you can save each month. The calculator shows your target fund, the gap, and how long to close it.
How this is calculated
Target fund = essential monthly expenses × number of months. The gap is your target minus what you've already saved. Time to fully fund = gap ÷ your monthly saving. Most experts suggest 3 months if you have stable income and few dependents, 6 months for most people, and up to 12 months if your income is variable or you're self-employed.
These are estimates for education, not advice. See our methodology and disclaimer.
How big should your emergency fund be?
A good emergency fund is measured in months of essential expenses, not your full paycheck. Essentials usually mean rent or mortgage, utilities, groceries, insurance, transportation, and minimum debt payments. The right target depends on how steady your income is.
- If you have a stable, salaried job with predictable pay, three months of essential expenses is often a reasonable goal.
- If your income is variable (commission, freelance, seasonal) or you are self-employed, six months or more typically gives a safer cushion.
- If you are a single earner supporting a household, leaning toward the higher end is usually wise, since one job loss affects everyone.
An emergency fund example
Suppose your essential monthly expenses are $3,000 and you have steady income, so you choose a three-month target. That puts your goal at $3,000 x 3 = $9,000. If you already have $2,400 set aside, you still need $6,600. Contributing $550 each month, you would reach your target in about 12 months. Bump the contribution to $825 and you would get there in roughly eight months instead. Small increases in your monthly amount can meaningfully shorten the timeline.
Where to keep your emergency fund
The job of this money is to be available the moment you need it, so prioritize safety and access over returns. A high-yield savings account is a common fit: your balance does not fluctuate, you can usually transfer funds within a day or two, and the account stays separate from your everyday checking so you are less tempted to spend it. Keeping it apart also makes it obvious whether the fund is intact.
It is usually best not to invest your emergency fund in stocks or other volatile assets. The market can fall exactly when you lose a job or face a surprise bill, forcing you to sell at a loss right when you need cash. Growth is the goal for long-term money, not for the cushion you may need next week.
Starter fund vs full fund
Building several months of expenses at once can feel overwhelming, so many people split it into stages. First, save a small starter fund of around $1,000 (or one month of essentials) to handle minor surprises without reaching for a credit card. Next, focus extra cash on paying down high-interest debt, since those rates often outrun any savings yield. Once that debt is cleared, return to building the full fund up to your three-to-six-month target. A simple budget calculator can help you find the monthly amount to put toward each stage.
Common mistakes to avoid
- Keeping it in checking. Mixed in with daily spending, it tends to quietly disappear.
- Investing it for higher returns. The value can drop just when you need to withdraw.
- Including non-essentials in the target. Sizing the fund around dining out or subscriptions inflates the goal and slows you down.
- Not replenishing after use. If you tap the fund, treat rebuilding it as a priority before other goals.
Once your emergency fund is solid, you can point your saving momentum at the next milestone. Our savings goal calculator can help you plan how long it takes to reach a specific target.