Find out how much your emergency fund should be. This calculator sets a target from your essential monthly expenses and months of cover, then shows your progress and how long it will take to fully fund it.
Results update automatically as you type. Base your target on essential expenses, not total spending.
How Much Should My Emergency Fund Be?
Multiply your essential monthly expenses by the months of cover you want. With $3,000 of essential costs, a 3-month fund is $9,000, a 6-month fund is $18,000 and a 12-month fund is $36,000. Pick more months the less secure your income is.
| Essential monthly expenses | 3 months | 6 months | 12 months |
|---|---|---|---|
| $2,000 | $6,000 | $12,000 | $24,000 |
| $3,000 | $9,000 | $18,000 | $36,000 |
| $4,000 | $12,000 | $24,000 | $48,000 |
| $5,000 | $15,000 | $30,000 | $60,000 |
How to Calculate Emergency Fund Amount and Time to Goal
Target = essential monthly expenses × months of cover; the time to goal is what’s left divided by your monthly saving.
Formula: Emergency Fund Target = Essential Monthly Expenses × Months of Cover. Still to Save = Target − Already Saved (or $0 if you’ve already met the target). Time to Goal = Still to Save ÷ Monthly Saving, rounded up to the next whole month.
- Add up essential monthly costs: say $3,000.
- Pick your months of cover: 6.
- Target: $3,000 × 6 = $18,000.
- Subtract what you have, $5,000, leaving $13,000. At $500 a month that takes 26 months.
- Essential monthly expenses: your must-pay monthly costs, such as housing, food, utilities, insurance and minimum debt payments
- Months of cover: how many months of expenses you want saved: 3, 6, 9 or 12
- Already saved: money you currently have set aside specifically for emergencies
- Monthly saving (optional): how much you plan to add to the fund each month
Example Scenarios
| Monthly Expenses | Months of Cover | Already Saved | Monthly Saving | Target (Time to Reach) |
|---|---|---|---|---|
| $2,000 | 3 | $0 | $200 | $6,000 (30 mo) |
| $3,000 | 6 | $5,000 | $500 | $18,000 (26 mo) |
| $4,000 | 9 | $10,000 | $750 | $36,000 (35 mo) |
| $2,500 | 12 | $0 | $300 | $30,000 (100 mo) |
| $5,000 | 6 | $30,000 | $1,000 | $30,000 (Funded) |
3 Month Emergency Fund vs 6 Month: Which to Pick
Base it on your own risk rather than a rule of thumb; doubling the months doubles the goal.
- Lean towards more months if your income is irregular, you are self-employed, you are the only earner or jobs in your field are slow to come by.
- Fewer months may suit two stable incomes.
- Count essential spending only: housing, utilities, food, insurance, minimum debt payments and transport.
How Long to Build a 6 Month Emergency Fund
Divide what’s left by what you can save each month. From zero, $2,000 a month of expenses over 6 months is $12,000, which takes 24 months at $500 a month. If that feels impossible, aim for one month first and build from there.
Keep it in an instant-access savings account, not shares that could fall just when you need them, and revisit the target after a pay change, a move or a new baby. The emergency fund article on Wikipedia explains the concept further.
Common questions about emergency fund size
How many months of expenses should an emergency fund cover?
It depends on your job stability and household. The calculator lets you switch between 3, 6, 9 and 12 months of cover so you can compare targets and pick the cushion that fits your situation.What is the difference between a 3 month and a 6 month emergency fund?
The 6-month fund is twice the size. With $3,000 of essential monthly costs, 3 months is $9,000 and 6 months is $18,000. More months suit irregular income or a single earner; fewer may suit two stable incomes.Should I use my total spending or just essential expenses?
Use essential expenses only: housing, food, utilities, insurance and minimum debt payments. Non-essential spending like dining out or subscriptions is usually the first thing cut in a real emergency, so it shouldn’t inflate your target.What happens if I haven’t started saving anything yet?
Enter $0 in the “already saved” field. The calculator shows your full target as still needed and, if you enter a monthly saving amount, how many months it will take to fund it from scratch.Does the calculator include interest earned on emergency savings?
No, it treats your progress as plain cash contributions with no growth. Emergency funds are usually kept in a liquid, low-risk account, so interest tends to have little effect on the timeline anyway.What’s the difference between “months covered” and my target?
“Months covered” is what your current savings would cover today based on your expenses, while the target is the full goal you’re saving toward. The gap between the two is what’s still needed. If you leave monthly saving blank, the time to goal shows a dash.Related Calculators
Once your emergency fund target is set, the savings goal calculator can help you plan the monthly contribution to get there on your own timeline. It’s also worth checking your net worth alongside your emergency fund, and if debt is competing for the same dollars, the debt-to-income ratio calculator can help you weigh saving against paying down balances faster.