Emergency Fund Calculator
Emergency fund calculator
An emergency fund is money set aside to cover essential bills if your income stops or a large unexpected cost lands. Enter your essential monthly expenses and how many months of cover you want, and this tool shows your target, how much is still to save, and a monthly amount to reach the target in a year.
What are "essential expenses"?
Your emergency fund target is based on your needs, not your income. Essential expenses are the bills you absolutely could not skip if you lost your job today:
- Housing (rent or mortgage) and utilities (electricity, water, internet)
- Basic groceries (not dining out or takeaways)
- Transportation (car payments, transport passes, basic maintenance)
- Minimum debt payments (credit cards, student loans)
- Health insurance and necessary medical costs
Wants — such as streaming subscriptions, holidays, and dining out — are excluded because you would cut them in a true emergency.
Emergency target examples (3 vs. 6 months)
The standard guideline is to save between three and six months of essential expenses. A three-month target is often sufficient for dual-income households with stable jobs. A six-month (or longer) target is usually better for single-income households, freelancers, or those in highly volatile industries.
| Essential monthly expenses | 3-month target (Stable) | 6-month target (Conservative) |
|---|---|---|
| $2,000 | $6,000 | $12,000 |
| $3,000 | $9,000 | $18,000 |
| $4,000 | $12,000 | $24,000 |
| $5,000 | $15,000 | $30,000 |
These are illustrative targets. The right size depends entirely on your own risk curve and financial obligations.
Size your fund
Emergency fund calculator
These figures are estimates for illustration only. The calculator multiplies the expenses and months you enter and spreads any remaining gap evenly over twelve months. It does not account for interest earned, changing expenses, or your wider situation. This tool is educational and is not personalized financial advice.
How this calculator works
Methodology
- Formula
- Target = essential monthly expenses × months of cover. Monthly savings = remaining gap ÷ 12.
- Assumptions
- Expenses cover only unavoidable bills; the fund is held in cash, not invested; the one-year timeline is a planning aid, not a requirement.
- Data sources
- The three-to-six-months framing and the "essential expenses" definition follow general consumer-education guidance from the CFPB and FDIC (linked below).
- Limitations
- Real expenses change month to month, interest is ignored, and individual circumstances vary widely. Treat the output as a starting estimate.
Calculations are our own and are estimates. Actual outcomes differ because of changing expenses, interest, taxes, and individual circumstances. This is general education, not personalized financial advice.
A worked example
$3,000 of essentials, four months of cover
Multiplying $3,000 by four gives a $12,000 target. If you have already saved $2,000, that leaves $10,000 to go. Spread evenly over a year, that is about $834 a month. If that is too steep, extend the timeline or start with a one-month milestone first.
Frequently asked questions
How much should I have in an emergency fund?
A common guideline is three to six months of essential expenses. Start with a smaller milestone first, such as one month of essentials or about $1,000, and build from there.
Should I size my fund from income or expenses?
Use essential expenses, not income. The fund is meant to cover the bills you could not skip if your income stopped, so those bills set the target.
Where should I keep my emergency fund?
In a separate, easy-to-reach savings account, ideally one that is FDIC-insured and pays some interest — usually a High-Yield Savings Account (HYSA). Keeping it apart from your checking account makes it less tempting to spend on everyday wants.
Should I build my emergency fund or pay off debt first?
Most experts recommend building a "starter" emergency fund of about $1,000 to $2,000, or one month of essential expenses, before aggressively paying off high-interest debt like credit cards. Without that starter fund, the next unexpected expense will just go straight back onto the credit card. Once the high-interest debt is gone, you can build up to the full 3-to-6 month target.
Is a 3-month or 6-month fund better?
It depends on your risk. A 3-month fund is generally enough if you are single with low expenses, or part of a dual-income household where one income can mostly cover essentials. A 6-month fund (or larger) is much safer if you are the sole earner for dependents, work freelance, or have unstable income.
Sources
- Consumer Financial Protection Bureau (CFPB)Consumer guidance on saving and emergency funds
- Federal Deposit Insurance Corporation (FDIC)Information on deposit accounts and keeping savings safe
- Federal ReserveResearch on household finances and unexpected expenses