Emergency fund calculator
Figure out your emergency fund target (3–6 months of essential expenses), the monthly contribution to get there, and the APY making your safety net work for you.
How many months of expenses do you need?
- Dual-income household, stable jobs: 3 months
- Single income or one earner self-employed: 4–5 months
- Variable income (commission, contract, freelance): 6 months
- Industry layoff risk or pre-retirement: 6–12 months
- Fully retired: 1–2 years in cash + bonds to avoid sequence-of-returns risk
What counts as 'monthly expenses'?
Only essentials — what you'd actually spend if you lost your income tomorrow. Not your full lifestyle.
- Rent or mortgage + utilities
- Groceries (cut by ~30% in true emergency)
- Health insurance + minimum medical costs
- Minimum debt payments
- Transportation (gas + insurance, not new car payments)
Strip Netflix, dining out, gym, travel. For most households, true essentials are 60–70% of normal spending.
Time to fund vs monthly savings
| Target fund | $300/mo | $500/mo | $1,000/mo |
|---|---|---|---|
| $5,000 | 17 mo | 10 mo | 5 mo |
| $10,000 | 33 mo | 20 mo | 10 mo |
| $15,000 | 50 mo | 30 mo | 15 mo |
| $20,000 | 67 mo | 40 mo | 20 mo |
Illustrative times assume a 4.5% APY; replace it with the current rate in the calculator because variable APYs change.
Emergency Fund Calculator FAQ
Where should I keep my emergency fund?
Should I build an emergency fund before paying off debt?
Should I invest my emergency fund?
Can I count my Roth IRA contributions as my emergency fund?
How do I know if my emergency fund is enough?
When should I tap my emergency fund?
Related calculators
Methodology and editorial standards
Each calculator uses its own inputs and method. Review the labels, units and assumption notes shown with the result. Costs, taxes, fees, benefits and other factors are not modeled unless the page or calculator explicitly says they are. A fixed-rate projection is a scenario, not a forecast or personalized recommendation.
The editorial standards explain how Snowballr reviews calculators and sources. The sources index links to references used across the site. To report an error or suggest a correction, use the contact page.