Emergency Fund Calculator
Enter your monthly essential expenses, how many months of coverage you want, and your current savings to see your target cushion and how long it takes to build it.
Size your safety net
Rent or mortgage, food, utilities, insurance, and minimum debt payments — not discretionary spending.
Three to six months is a common target; stretch to nine or twelve for variable income.
What you already hold toward emergencies. Use 0 if none.
What you can set aside each month. Use 0 to see the target only.
You still need $14,000.00 to reach a 6-month cushion.
- Still to save
- $14,000.00
- Time to reach
- 28 months
- Current coverage
- 1.3 months of expenses
How the emergency-fund target works
Your target is simply your monthly essential expenses multiplied by the number of months of coverage you choose. The gap is the target minus what you have already saved, floored at zero. If you are contributing each month, the time to reach the goal is the gap divided by that contribution, rounded up to the next whole month. Current coverage shows how many months of expenses your existing savings already cover.
Target = Monthly essential expenses × Months of coverageGap = max(0, Target − Current savings)Months to reach = ⌈Gap ÷ Monthly contribution⌉- Expenses
- Monthly essential (non-discretionary) spending
- Coverage
- Months of expenses to cover, 3 to 12
- Current savings
- What you already hold for emergencies
- Contribution
- Amount added each month
$3,000 of expenses, 6 months of coverage
Suppose your essential expenses are $3,000 a month, you want six months of coverage, you have $4,000 saved, and you can add $500 a month. Your target is $3,000 × 6 = $18,000. Subtracting your $4,000 leaves a gap of $14,000. At $500 a month, that gap takes $14,000 ÷ $500 = 28 months to close. Your current savings already cover 1.33 months of expenses.
This is an educational calculation based only on the values you provide. It does not model interest earned on the savings, and it is not financial advice.
What this calculator assumes
- The target covers essential expenses only — the costs you could not easily pause if income stopped.
- No interest or investment growth is applied to your savings or contributions; the fund is assumed to sit in cash.
- Contributions are treated as a flat monthly amount that does not change over time.
- Time to reach the goal is rounded up to the next whole month.
- Money values are rounded to the nearest cent for display.
Emergency fund FAQ
How many months of expenses should I save?
Guidance from consumer-finance regulators commonly points to three to six months of essential expenses. People with variable income, a single income household, or less job security often aim for nine to twelve months.
Should I count all my spending or just essentials?
Use essential expenses — housing, food, utilities, insurance, transport, and minimum debt payments. In a real emergency you would typically pause discretionary spending, so building the fund around essentials keeps the target realistic.
Sources and review notes
- U.S. Consumer Financial Protection Bureau — guide to building an emergency fund
- Financial Consumer Agency of Canada — saving for emergencies
Methodology last checked Jul 14, 2026. Formula implementation is covered by deterministic unit tests. No financial professional review is claimed yet.