If you’re renting a flat in the UK, the fridge is one of the few appliances you’ll likely need to buy yourself — and getting the size wrong is a surprisingly common mistake. Independent testing by Which? found that the usable storage space in a typical fridge freezer can be up to 38% smaller than advertised, meaning that 300-litre model you ordered might only hold around 186 litres of actual food. That difference matters when you’re trying to fit a week’s shopping into a compact kitchen.
I’ve been writing about practical home decisions for UK renters for a while now, and the fridge question comes up more often than you’d think. People focus on the wrong things — colour, brand, whether it has an ice dispenser — and overlook the details that actually affect daily use, like whether the door will clear your kitchen cabinets or if the freezer drawer can hold a frozen pizza. Here’s what you actually need to know.
What the different fridge types actually mean for your flat
Before you start browsing, it helps to know the main categories and which one suits a rented apartment. A freestanding fridge freezer is the most practical choice for most renters. It’s usually 60cm wide, costs less than integrated models, and you can take it with you when you move. Freestanding models are easier to install and service, and they come in a wide range of colours and finishes.
An integrated fridge sits behind a cupboard door and blends into your kitchen units. It looks seamless, but it’s harder to install, more expensive, and you can’t take it with you when you move out. If your flat already has one fitted, great — but I wouldn’t buy one for a rental. Under-counter models and mini fridges work well for studio flats or single occupants, though you’ll sacrifice freezer space. My own view: for a typical one- or two-bedroom flat, a freestanding combi fridge freezer around 60cm wide with a 70/30 or 60/40 split is the sweet spot. It fits standard kitchen gaps, holds enough for a couple, and won’t be a headache to move.
Why usable capacity matters more than the sticker number
Here’s where a lot of people get caught out. Manufacturers calculate storage volume with all the shelves, drawers, and door racks removed. That’s not how you use a fridge. Which? found that the average difference for freestanding models is -27% — meaning a 250-litre fridge actually gives you about 182 litres of usable space. For integrated models, the average gap is -29%. Even the best-performing models in their tests were off by 9%.
What does this mean for you? If you’re shopping for a flat with a partner, and you think a 200-litre model will be plenty, the real figure might be closer to 146 litres — which is tight for two people doing a weekly shop. The Which? recommendation for 1–2 people is 100–200 litres of usable space, which means you should look for an advertised capacity of at least 200 litres, and ideally closer to 250 litres, to account for the gap. For 3–4 people, aim for 200–300 litres of usable space, which means an advertised capacity of 300 litres or more.
Where people go wrong when buying a fridge for a UK flat
Not measuring the space — including ventilation gaps
Standard UK fridge freezers are 50–70cm wide, but that’s just the appliance itself. You need to allow extra space at the back and sometimes the sides for airflow. Without it, the fridge can overheat, work harder, and use more electricity. Check the manual for your model’s specific clearance requirements before you buy. Measure the gap in your kitchen, then subtract the required clearance — that’s your maximum appliance width.
Ignoring the fridge-to-freezer split
You’ll see models advertised as 60/40, 70/30, or 80/20. The first number is the fridge percentage, the second is the freezer. If you mostly use the fridge for fresh food and only keep a few frozen items, a 70/30 or 80/20 split makes sense. If you batch-cook and freeze meals, go for 60/40. Some newer models include a multizone compartment that you can switch between fridge and freezer depending on your needs — that flexibility is worth paying a bit extra for.
Overlooking energy efficiency ratings
Under the current UK energy label system, fridges are rated A to G. A higher-rated model uses less electricity, and since a fridge runs 24 hours a day, 365 days a year, the difference adds up. Energy-efficient models can significantly cut running costs over time. Look for A-rated or above. The upfront cost might be slightly higher, but you’ll recover that within a couple of years through lower electricity bills.
Forgetting about door swing and access
In a small flat kitchen, a fridge door that opens the wrong way or swings into a walkway can be a daily annoyance. Check whether the door is reversible (most freestanding models are). Also check whether the freezer is a pull-out drawer or a swing door — drawers are easier to access in tight spaces. If you’re in a studio, a compact under-counter fridge freezer might be a better fit than a full-height model.
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How to choose the right fridge for your flat — a practical guide
Measure your space properly before you buy anything
Grab a tape measure and note the width, height, and depth of the gap where the fridge will go. Remember to account for ventilation clearance — typically 5–10cm at the back and 2–5cm on the sides, but check the model’s manual. Standard UK fridge freezers are 60cm wide, but slimmer models (50–55cm) exist for narrower gaps. If you’re in a period conversion with non-standard kitchen dimensions, measure twice. A good-quality metric tape measure is a worthwhile investment for this job.
Decide on the right capacity and split for your household
Use the Which? guidelines as a starting point: 100–200 litres of usable space for 1–2 people, 200–300 litres for 3–4 people. Remember that advertised capacity is inflated — add 20–30% to your target to account for the gap. For the split, think about how you actually eat. If you buy fresh food weekly and only keep frozen peas and ice cream, a 70/30 or 80/20 split works. If you meal-prep and freeze portions, go for 60/40 or consider a model with a multizone compartment.
Choose between freestanding and integrated
For a rented flat, freestanding is almost always the better choice. It’s cheaper, easier to install, and you can take it to your next place. Integrated models require fitting into cabinet fronts, which means you’d need to leave it behind or pay to have the kitchen restored. The average usable space difference for integrated models is -29%, slightly worse than freestanding, so you’re also getting less value for money.
Check for features that actually matter in daily use
Auto-defrost (or frost-free) technology prevents ice build-up and saves you the hassle of manual defrosting. Adjustable shelving gives you flexibility for tall bottles or large containers. A digital thermostat lets you see the exact internal temperature, which is useful for food safety. If you’re in a flat without a separate utility room, noise level matters — look for models that specify decibel ratings under 40dB for quiet operation. A digital fridge thermometer can help you verify the temperature once it’s installed.
Consider future-proofing and energy costs
Energy prices aren’t going back to where they were. A fridge rated A or above under the new UK label will use noticeably less electricity than a C-rated model. Over a 10-year lifespan, the difference could be hundreds of pounds. If you’re planning to stay in the flat for a few years, spending a bit more upfront on an efficient model makes financial sense. Also think about whether your household might grow — if you might have a partner move in or start batch-cooking, err on the side of slightly larger capacity.
Can I take my freestanding fridge when I move out? ▾
What if my flat already has an integrated fridge? ▾
How do I dispose of my old fridge in the UK? ▾
Is a mini fridge enough for one person? ▾
What does the energy rating A–G actually mean for my bill? ▾
Getting the right fridge for your UK apartment comes down to three things: measuring your space honestly, understanding that advertised capacity is misleading, and choosing a freestanding model that you can take with you. Don’t get distracted by ice dispensers or smart features you’ll never use. Focus on usable litres, energy efficiency, and whether the door fits your kitchen layout. If this was useful, you might also want to read The Ultimate UK Apartment Moving Checklist.
Sources and Further Reading
Avoid Rental Rip-Offs: A UK Renter’s Guide — Practical advice on spotting unfair tenancy terms and protecting your deposit.
How to buy the best fridge freezer. Which?, 2024.
Fridge Buyer’s Guide. Paul Davies Kitchens and Appliances, 2024.
The Ultimate Kitchen Appliance Buying Guide for UK Homes. Core Appliances, 2025.
