Emergency Fund Calculator

"Three to six months of expenses" is the standard advice, and it is almost useless on its own — because most people do not know what their essential monthly spending actually is, and the resulting number sounds so large that they never start. This calculator gives you a specific target and, more importantly, a date.

Use essential spending, not total spending

This is the part people get wrong. An emergency fund exists to keep the lights on if income stops. It does not need to fund your normal lifestyle — it needs to fund the version of your life where you have just lost your job and cancelled everything optional.

Count: rent or mortgage, utilities, groceries, transport, insurance, phone, childcare, and minimum debt payments.

Do not count: eating out, subscriptions, holidays, hobbies, gifts, or anything you would drop in week one of a crisis.

For most households the essential figure is 55–70% of what they normally spend. Using total spending inflates the target by thousands and makes the whole thing feel hopeless.

How much cover do you actually need?

The right number depends on how quickly your income could disappear and how fast it could come back.

If you are starting from nothing, ignore the months entirely and go for the $1,000 cushion first. It covers the overwhelming majority of real-world emergencies — a car repair, a boiler, a vet bill, an excess on a claim — and it is close enough to reach that people actually get there.

Why the "within a year" number is on the page

The calculator shows what it would take to finish inside twelve months, alongside your current pace. That comparison is deliberate.

A target of $12,600 at $200 a month is over five years, which is long enough that most people quietly give up. The same target at $1,050 a month is one year, which is probably impossible. Seeing both tells you something useful: the honest answer is usually a middle number plus a shorter cover period to start with.

Aim for the starter cushion, then three months, then reassess. Milestones beat one distant finish line.

Where to keep it

Somewhere boring, separate, and reachable within a day or two. A high-yield savings account is ideal: the money still earns something, but the small friction of transferring it out is enough to stop casual spending.

Do not keep it in your current account, where it becomes invisible and gets absorbed. Do not lock it in anything with a withdrawal penalty or notice period — an emergency fund you cannot reach during an emergency is just savings.

Emergency fund or debt first?

If you have high-interest debt, the usual sequence is: build the $1,000 cushion, then attack the debt hard, then come back and build the full fund.

The logic is that without any cushion, the next surprise expense goes straight onto the card you are trying to clear, and you never make progress. A small buffer breaks that loop. Beyond $1,000 though, paying 24% interest to hold cash earning 4% is a losing trade.

Read the full guide

For a practical week-by-week plan, read our guide on building a $1,000 emergency fund fast.