Emergency Fund Calculator
How big should your safety net be, and how far away is it? Itemize your essential expenses (or enter one number), answer three questions to get a cushion recommendation that fits your situation, and see your target, the gap, and the timeline — including the interest your savings earn along the way. All in your browser.
Keep an emergency fund in cash or a high-yield savings account — somewhere safe and instantly accessible, not invested (high-yield accounts pay around 4% APY as of June 2026, and the timeline above includes that growth). 3 months is a common floor for stable two-income households; 6–12 is safer for single earners, dependents, or variable income — the "how many months" section above personalizes it.
The point is the floor, not the ceiling
An emergency fund isn't an investment — it's insurance you pay yourself. Its job is to turn a job loss, medical bill, or car repair from a crisis into an inconvenience, so you don't reach for high-interest debt. That's why it lives in boring, liquid cash: you're buying certainty and access, not returns. Build it around your essential expenses, the bills that don't pause when income does.
Start small, automate, then forget it
A full six-month fund can feel impossibly far away — so don't aim there first. A starter fund of even $1,000 handles most everyday surprises. Automate a monthly transfer, let the progress bar fill, and raise the target once the basics are covered. Once it's funded, leave it alone: it's not for the sale, the trip, or the upgrade. It's for the emergency.
Related
- Personal finance hub — all our money calculators and guides
- Savings goal calculator — plan toward any target
- Debt payoff calculator — what a fund helps you avoid
- Salary to hourly — know your real monthly income
FAQ
Is anything I enter sent to a server?
No. The calculator runs entirely in your browser — open DevTools → Network and confirm. Your finances never leave the tab.
How many months of expenses should I save?
The common guidance is 3 to 6 months of essential expenses, but it's really a risk dial — and the "how many months do I actually need?" section personalizes it. Start at 3 months for a stable dual-income household with no dependents, and add 3 for each risk factor: a single income, dependents, or variable/self-employed income (capped at 12). A solo freelancer with kids genuinely needs 12 months; a salaried two-income couple without them can be fine at 3. Pick the number that lets you sleep.
Should I use total spending or just essentials?
Use essential expenses — the things you'd still have to pay in a crisis: housing, utilities, food, insurance, minimum debt payments, transport. In an actual emergency you'd cut discretionary spending (dining out, subscriptions, travel), so building the fund around essentials keeps the target realistic instead of inflated. If you don't know your essentials number offhand, open the itemized worksheet, fill in the eight categories, and click "Use this total."
Where should I keep my emergency fund?
Somewhere safe and instant: a high-yield savings account or money-market fund. The point is availability, not return — it must be there in full the day you need it, with no market risk and no withdrawal penalty. Don't invest it in stocks (it could be down exactly when you need it) and don't lock it in a long CD.
Does this account for interest on the fund?
Yes, optionally. The APY field (default 4%, roughly what high-yield savings accounts pay as of June 2026) lets the balance grow while you contribute, and the time-to-goal simulates month by month with that growth included. It usually shaves only a little off the timeline — over a year or two of saving, your contributions do almost all the work — so set it to 0 if you'd rather plan on contributions alone.