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Emergency Fund Calculator UK

Emergency Fund Calculator & Financial Safety Planner

Work out how much emergency savings you need, how long your money would last if income stopped, and what real-life costs your safety pot could cover.

Your safety net
£9,000 target
This calculator turns emergency savings into real protection: car repairs, boiler problems, roof leaks, vet bills, medical costs or time off work.

Calculate your emergency fund

Enter your essential monthly costs, current savings and how much you can add each month.

£
Mortgage/rent, food, bills, transport, insurance, childcare and debt payments.
£
Money you could access quickly without selling investments.
£
Use your monthly leftover amount if you already know it.
£
Optional: MOT, Christmas, planned repairs or upcoming school costs.
Household risk
Target style
Include known costs?
🟢 Oops Fund £500+ for small shocks, repairs or appliance problems.
🔵 Ouch Fund £2,000+ for car repairs, vet bills or urgent dental costs.
🟡 1 Month Safety Enough to cover one month of essential bills.
🟠 Career Buffer 3 to 6 months of bills for redundancy or time off work.
🟣 Fortress Fund 12 months of costs for strong family protection.

What could your emergency fund cover?

This is where the number becomes real. Your emergency fund is there for the things you cannot perfectly predict.

£500 — Appliance or small repair Washing machine, phone replacement, minor car issue or urgent home repair.
£1,500 — Vet, dental or car repair A painful but common cost that can otherwise end up on a credit card.
£3,000 — Boiler or major car issue Enough to handle a serious home or transport problem without panic borrowing.
£5,000 — Roof leak or time off work Useful for urgent property repairs, income gaps or short-term family pressure.
£10,000 — Job loss buffer Gives many households breathing room while replacing income or reducing costs.
£20,000+ — Family fortress Strong protection for mortgage, children, cars, pets and bigger household shocks.

Emergency fund planning tips

A good safety pot protects you from borrowing when life throws something expensive at you.

Start with £500–£1,000

A starter fund stops small problems becoming credit card debt.

Separate emergencies from sinking funds

Car MOTs, Christmas and known repairs should have their own planned savings pot.

Use easy-access savings

Your emergency fund should be quick to access, but not so visible that you spend it casually.

Review after life changes

Mortgage changes, children, pets, self-employment or a new car can all increase the target.

Do not overfill forever

If you already have 12 months covered, extra cash may be better used for debt, pension, ISA or investments.

Automate the habit

A monthly standing order makes the fund grow without relying on willpower.

Emergency fund FAQs

Common questions people ask when building a financial safety net.

How much emergency fund should I have in the UK?

A common target is three to six months of essential expenses. Some households need less, while families, homeowners and self-employed people may need more.

Should I save an emergency fund or pay off debt first?

Many people benefit from building a small starter fund first, such as £500 to £1,000, then focusing on expensive debt while continuing to save gradually.

Where should I keep my emergency fund?

Keep it somewhere safe and easy to access, such as an easy-access savings account. Avoid locking all of it away where you cannot reach it quickly.

What is the difference between an emergency fund and a sinking fund?

An emergency fund is for unknown problems, such as sudden job loss or a roof leak. A sinking fund is for known upcoming costs, such as car maintenance, Christmas or planned repairs.

Is 12 months of emergency savings too much?

It depends on your risk. A 12-month fund can be useful for self-employed people or families with high commitments. If you are already very secure, excess cash may work harder elsewhere.

Helpful next calculators

Use these to work out where the emergency fund money can come from.

Build the buffer before life tests it

The best emergency fund is built before the boiler breaks, the car fails or income stops.

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