How Much Electricity
Does a Fridge Use?
Fridges run 24/7 so even modest wattage adds up. The honest UK 2026 figure is roughly £45 to £135 per year depending on size, age plus energy rating. Modern A-rated fridges have cut running costs significantly versus pre-2015 models.
A typical UK domestic fridge uses 0.5 to 1.5 kWh of electricity per day depending on size, age plus energy rating. At the current Q2 2026 Ofgem unit rate of 24.7p per kWh that means roughly £45 to £135 per year. A standard 200L A-rated larder fridge sits at the lower end (around £55 per year). A 600L American-style fridge freezer reaches the upper end (£130+ per year). Older D-rated models run 30 to 50 percent more than equivalent A-rated replacements.
The figures that matter
Standard fridge
200 to 300L A-rated larder fridge. The UK average for households of 2 to 4 people.
Fridge freezer
Combined fridge plus freezer 250 to 400L. Adds the freezer compartment energy.
American style
Larger 500 to 700L fridge freezer with ice plus water dispenser. Highest of the standard categories.
Annual range
Across all sizes plus ratings at 24.7p per kWh. Heavily affected by age plus energy rating.
Four things to consider
Energy rating matters
An A-rated fridge uses 30 to 50 percent less than a D-rated equivalent of the same size.
Size to actual need
A 600L American fridge for 2 people wastes electricity. Match capacity to household size.
Hot kitchens cost more
Direct sun, ovens or radiators near the fridge force the compressor to run more often.
4°C is the right setting
Food safety is at 4°C plus below. Setting any colder wastes electricity without benefit.
Real UK fridge running costs by type plus rating
Fridge running costs split by three things: physical size (more storage means more cooling work), energy rating (the efficiency of the compressor plus insulation) plus age (modern fridges are far more efficient than pre-2015 equivalents).
Real numbers at 24.7p per kWh (Q2 2026 Ofgem cap):
- Undercounter fridge (50 to 150L), A-rated. 0.3 to 0.5 kWh per day. £27 to £45 per year.
- Standard larder fridge (200 to 300L), A-rated. 0.5 to 0.8 kWh per day. £45 to £72 per year.
- Standard fridge freezer (250 to 400L), A-rated. 0.8 to 1.2 kWh per day. £72 to £108 per year.
- American-style fridge freezer (500 to 700L). 1 to 1.5 kWh per day. £90 to £135 per year.
- Older pre-2015 fridge of any size. Add 30 to 50 percent on the figures above.
Why older fridges cost so much more. Pre-2015 domestic fridges typically used compressors that were less efficient plus insulation that was thinner. The result is more compressor cycling for the same internal temperature. Modern A-rated fridges combine variable-speed compressors, vacuum-insulated panels plus better door seals. The same physical fridge size uses 30 to 50 percent less electricity in a 2025 model.
What pushes fridge running costs higher:
- Hot kitchens. Direct sunlight, ovens or radiators near the fridge force the compressor to run more often.
- Frequent door openings. Each opening lets warm air in. Fridges in heavy-use kitchens cycle more.
- Setting the thermostat too low. 4°C is the food safety target. Going colder wastes electricity.
- Old door seals. Cracked or compressed seals leak cold air. Replace seals if doors do not close firmly.
- Manual defrost ice buildup. A 5mm ice layer forces the compressor to work harder.
Real number ranges
Annual fridge running cost by type (UK 2026)
How a fridge cycles through a typical day
Compressor off
Most of the time the compressor is off plus the fridge sits at temperature. Power draw 1 to 5W.
Warm air in
Each opening adds heat. Internal temperature rises by 1 to 3°C depending on duration.
Compressor pulls full draw
Compressor runs at 80 to 200W for 10 to 20 minutes to bring the fridge back to set temperature.
Average draw
Compressor runs roughly 25 to 40 percent of the day in a typical UK home. Total 0.5 to 1.5 kWh.
Four ways to cut fridge running costs
Match size to household
A 600L American fridge for 2 people wastes electricity. A 200L larder fridge serves 2 to 3 people fine.
Place away from heat sources
Direct sun, ovens or radiators near the fridge force the compressor to run more. Cool spots win.
Check the door seals annually
Crack a banknote in the door, close, plus pull. If it slides easily the seals need replacing.
Defrost manually plus regularly
Manual defrost fridges need ice clearing every 3 to 6 months. Saves 10 to 30 percent on energy use.
Compare the options
Modern A-rated fridge
- ✓0.5 to 0.8 kWh per day for 200 to 300L.
- ✓£45 to £72 per year at 24.7p per kWh.
- ✓Variable-speed compressor cycles efficiently.
- ✓Vacuum-insulated panels reduce thermal losses.
- ✓10 to 15 year typical lifespan with minimal degradation.
Older pre-2015 fridge
- ✗0.8 to 1.4 kWh per day for the same physical size.
- ✗£72 to £125 per year at the same Ofgem rate.
- ✗Single-speed compressor cycles inefficiently.
- ✗Standard foam insulation with higher thermal losses.
- ✗Often 50%+ over original spec after 10 to 15 years of use.
Fridges are one of the steadiest household electricity loads because they run continuously. Our full Appliances hub covers running costs across every major UK household appliance.
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This article is one chapter inside our complete Appliances knowledge base. The hub covers running costs across every major household appliance from kettles to heat pumps.
More on appliance running costs
Three further refrigeration articles in the same hub group cover related questions. The first is how much electric does a mini fridge use for the smaller equivalent. The second covers how much electricity does a fridge freezer use per day for the daily baseline. The third is what is the best energy rating for a fridge freezer on the energy label question.