Emergency Fund Calculator
Work out how big your emergency fund should be and how long it will take to build it.
Why an emergency fund comes first
An emergency fund is cash set aside for unexpected costs: a job loss, a medical bill, a car repair. Without it, emergencies end up on credit cards at 20%+ interest. Most financial planners put building this fund ahead of investing, apart from capturing any employer retirement match.
How much do you need?
- 3 months: dual-income households with stable jobs.
- 6 months: the standard recommendation for most people.
- 9–12 months: self-employed, single-income families, commission-based jobs or industries with long job searches.
With $3,500 of essential monthly costs, a 6-month fund is $21,000. If you have $5,000 saved and add $500 a month, you will reach it in 32 months.
Where to keep it
Keep the fund liquid and safe: a high-yield savings account or money-market account at an insured institution. Avoid stocks, since a market drop often coincides with job losses. Keeping it at a separate bank from your checking account reduces the temptation to dip in.
Building it faster
- Start with a mini-goal of $1,000 or one month of expenses.
- Automate a transfer on payday.
- Direct windfalls such as tax refunds into the fund.
- Only count true essentials in the target; you would cut discretionary spending in a real emergency.
Frequently asked questions
How much should be in an emergency fund?
Three to six months of essential expenses for most people, and more if your income is irregular or you are the only earner.
Should I invest my emergency fund?
No. It should be in cash or cash-like accounts so it is available immediately and does not lose value when you need it.
Should I pay off debt or build an emergency fund first?
Build a small starter fund first, then focus on high-interest debt, then complete the full fund.
Last reviewed Oct 20, 2026. Results are estimates; check important decisions with a qualified professional.