Free Financial Tool
Emergency Fund Calculator
Find your target emergency fund, your current gap, how long to fully fund it, and why a HYSA beats a regular savings account for this purpose.
Monthly Expenses
$3,050
Emergency Fund Target
—
Current Gap
—
Time to Fund
—
HYSA Interest Earned
—
Regular Savings Interest
—
HYSA advantage
—
Expense Breakdown
Monthly
$3,050
How to Calculate Your Emergency Fund
Your emergency fund target is simple:
Worked Example
Monthly expenses: $3,050. Coverage: 6 months. Current savings: $2,000. Monthly saving: $400. HYSA APY: 4.50%.
- Target: $3,050 × 6 = $18,300
- Gap: $18,300 − $2,000 = $16,300
- Time to fund: ≈ 37 months (3 years 1 month)
- HYSA interest during build-up: ≈ $1,150 vs. $115 in regular savings
- HYSA advantage: $1,035 more
Frequently Asked Questions
How much should I have in an emergency fund?▾
Most financial experts recommend 3–6 months of essential expenses. If you're self-employed, have variable income, or work in a volatile industry, aim for 6–12 months. Your emergency fund target = monthly expenses × number of months.
Where should I keep my emergency fund?▾
Keep your emergency fund in a high-yield savings account (HYSA) — it's FDIC-insured, liquid, and earns 4–5% APY in 2025 vs. the 0.50% national average. Avoid CDs (early withdrawal penalties) or the stock market (volatile).
How long does it take to build a 6-month emergency fund?▾
It depends on your monthly expenses and how much you save. If your 6-month target is $18,000 and you save $500/month at 4.5% APY, it takes about 34 months. Starting with existing savings reduces the time significantly.
Should I invest my emergency fund?▾
No. An emergency fund must be liquid (accessible immediately) and safe (no risk of loss). Index funds and stocks are inappropriate. A HYSA gives you the best combination of safety, liquidity, and yield.
What counts as a monthly expense for emergency fund calculation?▾
Include essential living expenses: housing (rent/mortgage), food, utilities, transportation, insurance, and minimum debt payments. Exclude discretionary spending like dining out, subscriptions, and entertainment — these can be cut during an emergency.
Related Calculators
Example Scenarios — See the Real Numbers