Fridge Energy Bills: What a Fridge Costs to Run
See how much a fridge adds to your electricity bill in the UK, what changes the cost, and how to cut it without risking your food.
If you have been wondering whether your fridge energy bills are quietly doing more damage than you thought, the short answer is: they matter, but usually not for the reason people expect. A fridge uses electricity every hour of the day, so it is always part of the bill. But in most UK homes, the real issue is not that a fridge is outrageously expensive. It is that an old, oversized, badly placed or poorly maintained fridge can cost more than it should for years without anyone noticing.
That makes this a useful bill to understand. It is small enough to feel manageable, but large enough that the wrong appliance can quietly waste money every year.
How to Work Out What Your Fridge Costs to Run
You do not need a smart plug, a spreadsheet, or a perfect memory of every bill. Start with the annual energy consumption on the appliance label or product sheet. On UK energy labels for fridges and fridge-freezers, this is shown in kWh per year.
The calculation is:
- Annual running cost = annual kWh × electricity unit rate
- Monthly running cost = annual running cost ÷ 12
So if your fridge uses 150 kWh a year and your electricity is 24.67p per kWh, the maths is:
- 150 × £0.2467 = £37.01 a year
- That is about £3.08 a month
If your appliance is a larger fridge-freezer using 300 kWh a year, the same rate gives:
- 300 × £0.2467 = £74.01 a year
- That is about £6.17 a month
This lines up with recent UK consumer testing. Which? says that from 1 April 2026, the average freestanding fridge freezer costs £74 a year to run at the current price-capped electricity rate, while an average integrated fridge freezer costs £72 and an average American-style model costs £110.
Why Fridge Energy Bills Vary So Much
Two households can both say, “It is just a fridge,” and still see very different costs. That is because running cost depends on more than whether the door says fridge or fridge-freezer.
1) Size matters
Bigger appliances usually use more electricity. Even if two models have the same letter rating, the larger one can still cost more to run because it has more space to cool.
2) Fridge-freezer vs fridge only
A full fridge-freezer usually costs more than a small under-counter fridge because it is cooling more total volume, often with a frost-free system working in the background.
3) Age matters more than many people think
Newer appliances are often more efficient than older ones, especially if your current fridge has been running for well over a decade. Energy Saving Trust notes that fridges, freezers and fridge-freezers are on all the time, so efficiency has a bigger long-term effect than it does for appliances you only use occasionally.
4) Room temperature changes the workload
A fridge in a hot kitchen, next to an oven, or squeezed into a tight gap with poor ventilation has to work harder to stay cold. That pushes up electricity use even if the appliance itself is not faulty.
5) Maintenance and setup matter
Dirty condenser coils, torn door seals, frost build-up and a thermostat set colder than necessary can all add avoidable cost.
What Counts as a Normal Fridge Cost on an Electricity Bill?
For most households, a standard fridge or fridge-freezer should be a noticeable but not dominant part of the electricity bill. It is an always-on cost, but it usually should not be the first thing you blame for a big bill shock.
If your electricity bill feels much too high overall, it is usually more useful to look first at heating, hot water, tumble drying, electric showers, portable heaters and cooking. Our guide to why your energy bill is so high walks through that checklist step by step.
That said, a fridge becomes more important when:
- it is very old
- it is much larger than you need
- the seals are failing
- the motor seems to run almost constantly
- it sits in a warm or badly ventilated space
Those are the situations where fridge energy bills stop being background noise and start becoming a fixable leak in the budget.
How to Check Whether Your Fridge Is Expensive to Run
If you want a practical answer rather than a rough guess, use this quick process:
- Find the annual kWh figure. Check the energy label, manual, or the manufacturer product page.
- Use your electricity unit rate. If you are on a standard variable tariff and pay by Direct Debit, Ofgem says the average electricity unit rate is 24.67p per kWh from 1 April to 30 June 2026.
- Multiply the two figures. That gives a yearly estimate.
- Sense-check against similar appliances. If your result looks far above a comparable model, your fridge may be inefficient or not operating well.
If you cannot find the label, Which? also publishes average running costs for tested models. That is useful when you are trying to work out whether a replacement is likely to help.
How to Lower Fridge Energy Bills Without Ruining Your Food
This is where people sometimes make the wrong move. The goal is not to turn the fridge up so warm that food spoils. The goal is to make the appliance work efficiently while still keeping food safe.
Keep the fridge at a safe temperature
The Food Standards Agency says your fridge should be 5°C or below. That is the safety target to work from. If your fridge has a number dial rather than a temperature display, a small fridge thermometer can help you stop guessing.
Do not set it colder than needed
If the fridge is running much colder than 5°C, you may be paying for extra cooling you do not need. This is one of the easiest quiet fixes.
Give it breathing room
Leave space around the appliance if the manufacturer instructions require it. Poor ventilation means trapped heat, and trapped heat means more work for the compressor.
Check the door seals
If the seal is loose, cracked or dirty, cold air leaks out and warm air gets in. A simple visual check can save a lot of waste over time.
Open the door less often
You do not need to become extreme about this, but repeated long door openings do make the appliance work harder. Knowing what you want before opening the fridge helps more than people think.
Let hot food cool first
Putting steaming food straight into the fridge raises the internal temperature and makes the appliance work harder to pull it back down.
Defrost if needed
If you have a model that is not frost-free, ice build-up reduces efficiency and storage space. A proper defrost can make a noticeable difference.
Should You Replace an Old Fridge?
Sometimes yes, but it is worth doing the maths first.
Energy Saving Trust advises looking beyond the letter rating alone and checking the yearly kWh figure on the label. That matters because a larger appliance with a better rating can still use more electricity overall than a smaller one.
A replacement is more likely to make financial sense if your current fridge is:
- very old
- running constantly or noisily
- struggling to stay cold
- damaged around the seal or door
- far bigger than your household needs
To estimate the saving, compare old and new annual kWh figures. If the current appliance uses 320 kWh a year and the replacement uses 140 kWh, the gap is 180 kWh. At 24.67p per kWh, that is a saving of about £44 a year. That will not pay for an expensive new fridge overnight, but over time it can be worthwhile, especially if the old one is also becoming unreliable.
If you are comparing appliance costs more broadly, our guide to the average energy bill in the UK helps put single-appliance savings in context.
When a Fridge Is Not the Real Problem
It is easy to fixate on the one appliance that never switches off. But if your bill has jumped sharply, the fridge may simply be the easiest thing to blame rather than the main cause.
For most households, the biggest cost drivers are still space heating, hot water and other high-draw appliances. If your bill shock came suddenly, also check for:
- estimated vs actual meter readings
- tariff changes
- Direct Debit adjustments
- standing charges
- seasonal increases in heating use
That is why it helps to treat fridge energy bills as one line in the bigger picture, not the whole story. If you want to understand the fixed part of your bill too, our guide to energy bill standing charges explains what you are paying before usage is even counted.
A Simple Fridge Running Cost Table
Using the average direct debit electricity unit rate of 24.67p per kWh for 1 April to 30 June 2026, here is a quick guide:
| Annual usage | Approx yearly cost | Approx monthly cost |
|---|---|---|
| 100 kWh | £24.67 | £2.06 |
| 150 kWh | £37.01 | £3.08 |
| 200 kWh | £49.34 | £4.11 |
| 250 kWh | £61.68 | £5.14 |
| 300 kWh | £74.01 | £6.17 |
This is a much better way to judge a fridge than vague claims like “cheap to run” or “energy saving”. If you know the kWh, you can price it properly.
How 118 118 Money Can Help
Questions about fridge energy bills are usually not really about fridges. They are about wanting the monthly outgoings to make sense again. When one bill feels slippery or unpredictable, it adds stress far beyond the pounds and pence involved.
That is why our Financial Fitness content focuses on calm, practical checks that help you feel more in control. If you are trying to steady the whole household budget, you may also find our guides on building a stronger financial foundation, saving money every day, and housing and utility management helpful.
For more bill-focused guidance, browse the full Energy Bills hub.
FAQ: Fridge Energy Bills
How much does a fridge cost to run in the UK?
It depends on the model and its annual kWh use, but the easiest way to estimate it is annual kWh on the energy label multiplied by your electricity unit rate. At the April to June 2026 Ofgem average direct debit electricity rate of 24.67p per kWh, a fridge using 150 kWh a year would cost about £37 a year to run.
Does a fridge add a lot to your electricity bill?
A fridge matters because it runs all day and all night, but it usually is not the single biggest driver of a high bill. Heating, hot water, tumble drying and electric showers often cost more. The fridge becomes more noticeable if it is old, large, in a warm room, or has damaged seals.
Is it cheaper to keep a fridge full?
A sensibly stocked fridge can help hold its temperature when the door opens, but overfilling can block airflow and make cooling less efficient. Aim for organised shelves with room for air to circulate.
What number should my fridge be set to?
The safest guide is temperature rather than the dial number. In the UK, the Food Standards Agency says your fridge should be 5°C or below. If your fridge has a numbered dial rather than a digital display, check the manual and use a small fridge thermometer if needed.
Will replacing an old fridge save money?
It can, especially if the current fridge is very old, oversized, noisy, or running warm. Compare the annual kWh figure on a new appliance label with your current model’s label or manual, then multiply the difference by your electricity rate to estimate the yearly saving.
Why is my fridge using more electricity than expected?
Common reasons include a warm kitchen location, dirty condenser coils, worn door seals, frequent door opening, frost build-up, or a thermostat set colder than needed. If the motor seems to run constantly, it is worth checking for a fault.
Note: This article is general information, not financial advice.
Stock images via Unsplash.