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How Big Should Your Emergency Fund Be? A Step-by-Step Calculator Guide

Work out how much emergency savings you really need, where to keep it and how long it will take to build with a simple monthly plan.

Try it: Savings Goal Calculator →

What an emergency fund is for

An emergency fund is cash set aside for unexpected costs: a job loss, a car repair, a medical bill or an urgent trip. Having it means you don't need high-interest credit cards or loans when something goes wrong.

The 3-to-6-month rule

The most common advice is to save three to six months of important expenses. Essentials are rent or mortgage, utilities, groceries, insurance, transport and minimum debt payments, not your total spending. If your essentials are $2,500 a month, your target is $7,500 to $15,000.

Choosing your number

Aim for the higher end if you're self-employed, have irregular income, are the only earner in your household, or work in an industry with frequent layoffs. A dual-income household with stable jobs may be comfortable with three months.

Start with a mini fund

A large target can feel impossible. Start with $1,000, which covers many common emergencies, then build toward one month of expenses and keep going. Each milestone is a real improvement in financial security.

Make a plan

Enter your target and timeframe in our savings goal calculator. Reaching $9,000 in 18 months needs $500 a month. If that's too much, extend the timeline or find extra money by cutting one or two subscriptions and selling unused items.

Where to keep it

The fund should be safe and easy to access but not so easy that you spend it. A separate high-yield savings account is the usual choice. Avoid investing emergency money in stocks, because markets can fall exactly when you need the cash.

Automate it

Set up an automatic transfer on payday. Treat it like a bill. Put a share of windfalls, such as tax refunds or bonuses, into the fund too.

After you use it

Using the fund is the whole point, so don't feel guilty. Simply restart contributions until it's back to target. Recalculate the target every year as your expenses change; inflation raises the cost of the same essentials over time.

Frequently asked questions

How much should be in an emergency fund?

Typically three to six months of important expenses.

Where should I keep my emergency fund?

In a separate, easily accessible savings account, ideally high-yield.

Should I invest my emergency fund?

Generally no, because investments can lose value when you need the money.

What if I can't save that much?

Start with a $1,000 mini fund and build gradually with automatic transfers.

Try it: Savings Goal Calculator →

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