Emergency Fund Calculator UK

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How big should my emergency fund be?
Find the right buffer for your situation — emergency fund calculator

An emergency fund protects you from the unexpected — job loss, a broken boiler, car repairs, or a sudden expense. Without one, even a small shock can push people into debt. This calculator shows how large your fund should be and how long it will take to build it.

3 months
Minimum
6 months
Recommended
9–12 months
Self-employed / single income
Your Expenses & Savings
£
£
£
Target Emergency Fund
£0
Currently Funded
0%
Shortfall / Surplus
£0
Months to Fully Fund
Funded By
£0Interest Earned Building Fund
Emergency Fund Progress 0%
£0 saved target: £0
⚠️ Why this matters
Without an emergency fund, unexpected costs often go on credit cards or loans. A £2,000 emergency on a credit card at 24% APR could cost over £500 in interest if repaid slowly. Your emergency fund protects you from that.
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🏦 Where should you keep your emergency fund? Our Savings Finder shows the best easy-access accounts — so your money is safe and earning interest while you build your cushion. →

How much emergency fund should you have in the UK?

Most financial planners suggest saving between three and six months of essential living expenses — the amount that covers rent or mortgage, food, utilities, and transport if your income stopped suddenly.

An emergency fund is generally kept in an easy-access savings account, so it remains available immediately without penalties for withdrawal. The right amount depends on your personal situation — job security, income type, dependants, and existing financial commitments.

The figures above are general guidance for illustration only and do not constitute financial advice. Your own circumstances will determine the right level of cover for you.