Emergency Fund Calculator

How big should your safety net be? Turn monthly essential expenses into a target fund, see how many months you already cover, and plan the gap.

100% FreeNo sign-upPrivate — runs in your browser
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Emergency fund target

Still to save
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Months already covered
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Months to reach target
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Funded so far
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How to use this tool

1
Add up monthly essentials

Housing, food, utilities, transport, insurance and minimum payments only.

2
Choose your target months

3 for stable income, 6 as the common default, more for freelance or single-income households.

3
Enter what you already have

Only money that is instantly accessible and earmarked for emergencies.

4
Set a monthly saving amount

To see how many months the gap will take to close.

Formula & worked example

Target fund = monthly essential expenses × target months. Gap = max(0, target − current savings). Months covered = current savings ÷ monthly expenses. Months to goal = gap ÷ monthly saving.

Monthly essentials of $3,000 with a 6-month target give a $18,000 emergency fund. With $6,000 already saved you cover 2.0 months, have $12,000 left to save, and reach the target in 24 months at $500 a month.

Limitations — read this before you rely on it

Counts only essential expenses (housing, food, utilities, transport, insurance, minimum debt payments) — use essentials, not total spending, or the target will be overstated. It does not model income loss timing, insurance payouts or access delays; keep the fund liquid and separate from investments.

Frequently asked questions

3–6 months of essentials is the usual guidance: 3 for stable dual incomes, 6 or more for single incomes, freelancers, or volatile jobs. 12 months suits very irregular income.

Housing, food, utilities, transport, insurance and minimum loan payments — the costs you cannot pause. Discretionary spending (eating out, subscriptions, holidays) is not part of the target.

In an instantly accessible savings account, separate from everyday spending. It should not be invested in shares or locked deposits — the point is availability in a crisis.

Build a small starter fund first (often one month of essentials), then attack high-interest debt, then finish the full fund. Without any buffer, every surprise goes back on a card.

When it hits your target, redirect the monthly amount to investing or debt. Revisit the target after rent rises, a job change, or a new dependant — the target moves with your essentials.