Home Clutter Cost Calculator: How Much Money Is Sitting Unused in Your Home?

At Savzz, we help people find money they did not know they had. This calculator does that quite literally, it works out the resale value of the things you already own but no longer use.

Most people have a rough sense that there is probably some money tied up in their home somewhere. An old phone in a drawer, a coffee machine that came out of the box twice, a pile of clothes that still have the tags on. The question is how much it all adds up to. The honest answer, for most UK households, is more than you would guess.

This is the only calculator that lets you build a proper picture room by room and category by category, using realistic UK secondhand market values, and then tells you what you could actually make from selling based on how you typically behave rather than assuming you will list everything on eBay tomorrow.

Who Is This Calculator For?

This tool is for anyone who suspects their home contains more sellable value than they’ve ever really added up. It is particularly useful if you are:

• Someone going through a January clear-out or spring clean who wants to know whether it is worth selling the things they are decluttering rather than just taking them to a charity shop
• Anyone trying to raise a specific amount of money to pay down a credit card, cover an unexpected bill, or contribute to a savings goal, and wondering whether their unused possessions could help
• A household that has upgraded phones, laptops, or appliances and still has the old ones sitting around because nobody has got around to listing them
• Someone who has moved house recently and still has boxes of things they have not unpacked, which is usually a fairly clear sign those items are not needed
• Anyone who shops regularly and wants a clear picture of how much they spend on things that end up unused, as a nudge to shop differently in future.
• Parents whose children have outgrown toys, games, and clothes that are in perfectly good condition and worth real money on the secondhand market

Who Is This Calculator Not Suitable For?

• Anyone needing a formal valuation for insurance or probate purposes. The figures in this calculator are based on typical UK secondhand resale values from platforms like eBay, Vinted, and Facebook Marketplace. They are not professional valuations and should not be used for insurance, inheritance, or legal purposes.
• Anyone with high-value antiques, art, or collectibles. For genuinely rare or valuable items, a specialist valuer or auction house will give you a far more accurate figure than any online calculator can. This tool is designed for everyday household items rather than specialist pieces.

How to Use the Home Clutter Cost Calculator

Start with the quick-add buttons at the top. These cover the most common unused items in UK homes: old phones, laptops, games consoles, unworn coats, air fryers, dumbbells, and more. Click any item you have and it gets added to your total. The default value is based on a typical UK secondhand price for that item in good condition. You can edit the figure to match what yours is actually worth.

For a fuller picture, work through the category sections below the quick-add grid. Each category: electronics, clothing, kitchen, fitness equipment, toys and games, tools, and furniture, has eight items with their own toggle and editable value. Add everything that applies, skip what does not, and adjust values where yours differ from the defaults.

The selling habits section at the bottom shapes the realistic sale value. Someone who has never sold anything online has a lower realistic figure than someone who uses Vinted and eBay regularly. The calculator weights this honestly rather than assuming you will sell everything you have added.

How Much Are UK Households Sitting On?

The “money sitting in your home” angle is one that journalists reach for regularly, and there is good reason for that. Multiple studies and surveys over the past few years have produced figures that consistently surprise people.

Research by eBay UK found that the average UK household has around £700 worth of unused items at any one time. A 2022 survey by Barclaycard put the figure higher, estimating that UK adults collectively hold around £48 billion of unused goods in their homes. A similar survey by Vinted found that the average person’s wardrobe alone contains around £100 to £150 of clothing they no longer wear.

These are averages. Households with children tend to collect more because children grow out of things quickly. Households that regularly upgrade technology: phones, laptops, smart home devices, tend to keep old devices rather than sell them. Anyone who went through a fitness motivation phase and bought equipment they no longer use is almost certainly sitting on more than average.

The calculator is designed to show you your specific figure rather than asking you to relate to a national average. For most people who fill it in honestly, the total is higher than they expected.

The Items Most Likely to Be Sitting Unused in Your Home Right Now

Old smartphones. The average UK phone upgrade cycle is around two to three years. Most people have at least one old phone either in a drawer or in a box with the original packaging. A two to three year old iPhone or Samsung Galaxy in good condition usually sells for £100 to £200 on eBay or Facebook Marketplace. A phone that was flagship level when new but is now two generations old is still worth real money.

Kitchen gadgets. The air fryer has been the single most gifted and purchased kitchen appliance in the UK for the past three years. Many households now have two, the one they bought and the one someone gave them as a gift. An unused or barely used air fryer in its box sells for £30 to £60 on Facebook Marketplace within days of being listed. The same goes for coffee machines, breadmakers, blenders, and slow cookers that came out of the cupboard a handful of times and then got pushed to the back.

Fitness equipment. The post-lockdown home fitness boom left a lot of UK homes with equipment that gets far less use as gym habits returned to normal. Dumbbells, resistance bands, yoga mats, and exercise bikes are all in consistent demand on the secondhand market. An exercise bike that cost £200 new and has been used three times sells for £80 to £120. A set of dumbbells is almost always sellable at close to original price because demand for weights is constant.

Clothes with tags still on. Most people who think carefully about their wardrobe will find at least a few items they bought, wore once or never, and have had hanging there ever since. Branded trainers in good condition, unworn coats, and decent quality jeans sell reliably on Vinted and Depop. Designer or luxury items sell for more. The key is being honest about what you actually wear versus what you keep because you feel you should.

Games consoles and video games. A previous generation console like a PlayStation 4 or Xbox One still sells for £100 to £150. Individual games in good condition range from £5 to £20 each for common titles, and considerably more for rarer ones. Lego sets are their own category. Complete sets in good condition retain value remarkably well and sell easily, with more popular themes often getting prices close to their original retail cost.

Tools you bought for one job. The pressure washer bought to clean the patio in 2021. The jigsaw bought for a DIY project that is long finished. The power drill that was an upgrade on the old one that still worked. Tools retain their value well and sell reliably on both eBay and Facebook Marketplace. Buyers are often people who need a specific tool for a specific job and want to pay secondhand rather than full price.

Where to Sell Your Unused Items in the UK

Different platforms suit different categories of item, and choosing the right one makes a meaningful difference to how quickly you sell and what price you get.

Vinted is the best platform for clothing and accessories, full stop. The platform has grown rapidly in the UK and has an active buyer base specifically looking for secondhand clothes. Listing is free for sellers, and the buyer pays the Vinted protection fee rather than the seller. For anything wearable in reasonable condition, Vinted is where you will sell fastest.

eBay works best for electronics, games, Lego, tools, and anything with a clear model number or brand that buyers can search for specifically. When someone wants a particular games console model or a specific power tool, they search eBay by model. This means buyers find your listing without you needing to do much more than title it accurately and photograph it well. eBay charges a final value fee of around 12.8% plus a fixed amount per transaction, which is worth factoring into your expected sale price.

Facebook Marketplace is best for large items that would be impractical or expensive to post, furniture, exercise bikes, appliances, and garden equipment. Buyers collect in person so there are no postage costs, no packaging required, and no courier delays. The trade-off is you need to manage local messages and arrange a collection time, which some people find more effort than posting. For bulky items the convenience to the buyer of avoiding postage usually makes them move quickly and at decent prices.

Depop skews younger and works particularly well for vintage clothing, streetwear, branded fashion, and anything with a distinctive style. If your unused clothes are in a particular aesthetic category: vintage Nike, 90s-inspired pieces, Y2K fashion, Depop often produces better prices than Vinted for those specific items.

Gumtree is a good secondary option for furniture and household items, particularly in areas where Facebook Marketplace is less active. It is free to list and attracts local buyers for larger items.

How to Price Secondhand Items Accurately

The biggest mistake most first-time sellers make is pricing based on what they paid rather than what the item is currently worth on the secondhand market. What you paid is irrelevant to what a buyer will offer. What matters is what similar items are currently selling for.

The best way to price anything is to search for it on eBay, filter to sold listings rather than active ones, and look at the last ten or fifteen completed sales for that specific model and condition. This shows you actual sale prices rather than what sellers hoped to get. A sold listing is real market data. An unsold listing at an optimistic price is just wishful thinking.

For clothing on Vinted, search for the same item or very similar items in the same condition and size, and price slightly below the going rate to move quickly, or at the going rate if you are not in a hurry.

For furniture and large items on Facebook Marketplace, look at active listings in your area for similar pieces and price in the middle of the range. Items that are priced at the top of the local market sit unsold for weeks. Items priced just below the going rate typically attract messages within a day.

Condition is the single biggest factor in price. An item described honestly as excellent condition with clear photos taken in good natural light will always outperform a similar item with three blurry photos and a vague description.

The Psychology of Keeping Things You No Longer Use

Most people are aware they have things they do not use but few people actively do anything about them. There are a few consistent reasons for this.

The sunk cost effect. Selling something at a loss feels worse than not selling it at all. An air fryer that cost £80 and would sell for £35 feels like a £45 loss if you sell it, even though keeping it in the cupboard means the money is just sitting there doing nothing. The rational position is that the £80 is gone either way, you either get £35 back or you get nothing. The £35 is always better than the nothing, but the brain does not always process it that way.

The “I might use it” belief. Most unused items come with a persistent belief that they will get used eventually. This is almost never accurate. Research on consumer behaviour finds that items unused for six months or more are very unlikely to become used items. The six-month rule is a reasonable guideline, if you have not used it in six months, you probably will not.

The effort of selling. Taking photos, writing a description, responding to messages, packaging and posting something, or waiting in for a buyer to collect, it all feels like effort. For low-value items the effort often genuinely exceeds the financial return. For higher-value items, the actual time involved in listing and selling is usually fifteen to thirty minutes per item, which makes the hourly return on your time very good for anything worth more than about £20.

Attachment to the original price. We tend to see our possessions as worth what we paid for them rather than what they are worth now. This makes the idea of selling at secondhand prices feel uncomfortable even when it is clearly the right financial move.

The Environmental Case for Selling Rather Than Discarding

The financial argument for selling your unused items is clear, but the environmental one is worth mentioning too, particularly for electronics and clothing.

Electronics are resource-intensive to manufacture. A smartphone needs rare earth metals, lithium, and significant energy in its production. When a device is discarded and sent to landfill, all of that embodied resource is wasted. When it is sold and reused by another person, the full manufacturing cost of a replacement device is avoided. A two-year-old phone that would otherwise sit in a drawer and eventually be thrown away, sold and used for another two years, is a meaningful environmental saving in addition to the financial one.

Clothing is the most widely cited example of the environmental cost of overconsumption. The secondhand clothing market is growing faster than any other apparel sector precisely because awareness of these costs has increased. Selling clothing you do not wear keeps it in use rather than sending it to landfill, which is where the majority of discarded clothing ends up in the UK.

The calculator focuses on the financial value because that is what most people find most motivating, but the two arguments point in the same direction.

What Your Clutter Total Could Pay For

Depending on what you find in the calculator, your realistic sale figure could cover a meaningful real-world expense. Here are some benchmarks to put the numbers in context.

At £100 to £200: a month of household utility bills, a year of a streaming subscription, several months of a gym membership, or a new item of clothing or footwear bought new with a discount code.

At £200 to £500: a weekend break for two, three to four months of grocery bills, a significant contribution to a credit card balance, or a deposit on something you actually want and will use.

At £500 to £1,000: a car service and MOT, a new phone without going on a contract, a significant chunk of an emergency fund, or a proper contribution to savings.

At over £1,000: a holiday, a meaningful debt repayment, several months of rent contribution, or an investment in something genuinely useful to you.

These are not hypotheticals for most people who use this calculator honestly. The items are already there. The money is already in your home. It just needs to be unlocked.

Five Things to Do This Week to Start Turning Clutter Into Cash

• Do one drawer today. Pick the most obvious drawer or shelf and take everything out. For anything you have not used in six months, make a keep or sell decision immediately. Do not put things back in the drawer as a maybe. The maybe pile is where clutter lives permanently.
• Photograph your five highest-value items before you do anything else. If the calculator shows you have a £150 old phone and a £80 exercise bike, those two items alone are worth the fifteen minutes it takes to photograph them in good light and write an accurate description. List those first and everything else later.
• Create a Vinted account if you do not already have one. It takes ten minutes. For clothing specifically it is the easiest platform to list on and the one with the most active buyers in the UK right now. There is no reason not to have it.
• Check eBay sold listings before you price anything. Filter to completed sales, not active listings. The price you see on active listings is what sellers hope to get. The price on sold listings is what buyers actually paid. Price accordingly and your items will sell rather than sit.
• If you are going to donate items anyway, check their value first. Charity shops do important work and donating is genuinely worthwhile for low-value items that would cost more in your time than they would return. But donating a £120 coffee machine or a £150 old phone because you could not be bothered to spend twenty minutes listing it is giving away real money. Check the value first, sell anything worth more than £20, and donate the rest.

Frequently Asked Questions

How much are unused items in the average UK home worth?

Research from multiple sources puts the figure at around £700 per household, though this varies widely. Households with children, households that upgrade technology regularly, and households where shopping habits have led to accumulation of unused goods often have far more. The calculator gives you a personalised figure based on what you actually have rather than a national average.

What is the best way to sell old clothes in the UK?

Vinted is currently the most active platform for secondhand clothing in the UK. It is free to list as a seller and has a large buyer base across all clothing categories. Depop works better for branded streetwear, vintage, and trend-driven pieces. eBay is worth trying for higher-value branded items where buyers search by specific model or label. For bulk selling of lower-value items, a car boot sale or a bundle listing on Vinted can move more volume with less individual effort.

What is the best place to sell electronics in the UK?

eBay is the dominant platform for secondhand electronics in the UK because buyers search by specific model names and the platform has the largest active buyer base for tech items. For phones specifically, music magpie, Decluttr, and similar trade-in services offer instant pricing and free postage in exchange for a lower price than private sale. Facebook Marketplace works well for larger electronics like TVs and monitors where local collection avoids the postage question entirely.

How do I know if something is worth selling or just donating?

A rough guideline is that anything with a realistic secondhand value above £15 to £20 is worth the fifteen minutes it takes to list online. Below that figure, the time cost of listing, packaging, and posting often makes donation a better use of your time unless you are listing in bulk. Check eBay sold listings for any item you are unsure about before deciding. Items that surprise people with their secondhand value include complete Lego sets, older games in good condition, branded tools, and anything from a brand with a strong following.

Does selling secondhand items affect tax in the UK?

HMRC’s trading allowance means you can earn up to £1,000 per year from selling your own possessions without needing to declare it or pay tax on it. Selling unused personal items is not the same as running a business. If you regularly buy things specifically to resell them at a profit, that is a different situation and HMRC guidance on trading income applies. For the vast majority of people selling household clutter, the trading allowance covers the activity entirely.

What should I do with items that are broken or not working?

Broken electronics are often still worth money as spares or for repair. A cracked iPhone screen does not make the phone worthless, repair shops and individual buyers looking for spare parts will buy them. Search eBay for the specific item listed as “for parts” or “spares and repairs” to see what they sell for. For completely non-functional items with no parts value, responsible electronic recycling through councils or manufacturer take-back schemes is better than landfill.

How accurate are the values in the calculator?

The default values are based on typical UK secondhand sale prices for each item in good condition, drawing on commonly sold items on eBay, Vinted, and Facebook Marketplace. They are realistic averages rather than best-case prices. Items in excellent condition with original packaging will sell for more. Items in poor condition will sell for less. The fields are editable precisely because your specific items may be worth more or less than the default, the calculator is a starting point, not a definitive valuation.

Who built this calculator?

The Savzz Home Clutter Cost Calculator was built by the team at Savzz.co.uk, a UK discount code and money-saving site. We built it because no existing tool lets you properly quantify the sellable value of your own home in a structured way. Most “clutter value” content gives vague national averages. This one lets you go category by category, item by item, with realistic UK secondhand prices and a realistic sale estimate based on your actual selling habits. It is completely free to use with no sign-up required.