Emergency Fund Calculator
An emergency fund turns a financial crisis into a minor inconvenience. Use this free emergency savings calculator to find out how big yours should be, and exactly when you'll get there.
This free calculator is from The Budget Ledger, practical money guidance for everyday budgets and real-life planning.
How to calculate your emergency fund
The formula is simple: add up your essential monthly expenses (housing, utilities, food, transport, insurance, and minimum debt payments), then multiply by the number of months you want to cover. If your essentials come to $2,500 a month and you want a six-month cushion, your target is $15,000. The calculator above does this math for you and shows how long it will take at your current savings rate.
How many months should you save? The 3-6-9 rule
A common guideline is three to six months of essential expenses, and the 3-6-9 rule fine-tunes it to your situation:
- 3 months if your income is stable and you have a safety net.
- 6 months for most people, especially with children or a mortgage.
- 9 months or more if you are self-employed, have variable income, or are the sole earner.
New to saving? Start with a $1,000 starter fund first. Our guides on how to build a $1,000 emergency fund and how to build a 6-month emergency fund in a year walk through the exact steps.
Where to keep your emergency fund
Your emergency fund should be safe, separate, and accessible. The right home for almost everyone is a high-yield savings account (HYSA). It is FDIC insured, you can withdraw freely, and the better accounts pay meaningfully more interest than a standard big-bank account. Never invest your emergency fund in stocks or anything that can drop in value; the whole point is that it is there and whole on your worst day.
Frequently asked questions
How much should I have in my emergency fund?
Most people should aim for three to six months of essential expenses. Add up your must-pay costs (housing, utilities, food, transport, insurance, and minimum debt payments) and multiply by the number of months you want covered. If your essentials are $2,500 a month, a six-month fund is $15,000. If you're just starting, a $1,000 starter fund comes first.
What is the difference between a 3-month and 6-month emergency fund?
Three months of essential expenses is enough if your income is stable and you have other safety nets. Six months is the standard target for most households, especially with kids, a mortgage, or a single income. If you are self-employed or have variable income, lean toward nine months or more.
Where should I keep my emergency fund?
In a high-yield savings account (HYSA) that is FDIC-insured, separate from your everyday checking, and easy to withdraw from within a day or two. Never invest an emergency fund in stocks; the whole point is that it holds its value on your worst day, not that it grows.
Should I build an emergency fund or pay off debt first?
Do a little of both. Build a small $1,000 starter fund so a surprise does not put you deeper in debt, then throw everything at high-interest debt like credit cards. Once that debt is gone, come back and build the full three-to-six-month fund.
How long will it take to save my emergency fund?
Divide your target by how much you can save each month. A $9,000 fund at $500 a month takes 18 months; at $750 a month it takes 12. The calculator above shows your exact timeline based on your target and monthly savings amount.
Is $1,000 enough for an emergency fund?
$1,000 is a solid starter fund and a great first milestone; it covers most everyday emergencies like a car repair or a medical copay. But it is not a full emergency fund. Once your high-interest debt is handled, keep going until you have three to six months of essential expenses saved.