Buying cat litter in bulk
Buying cat litter in a larger pack size is usually the most reliable way to bring the cost per kilo down, more so than hunting for a specific one-off discount. The trick is comparing pack sizes properly and being realistic about how much you can store and use before it goes off.
What actually brings the price down
Litter is heavy and bulky, so packaging and handling make up a real share of the cost per bag. A larger bag or a multipack of the same litter almost always works out cheaper per kilo than buying the smallest size repeatedly, simply because those fixed costs are spread over more product.
It's worth checking the actual price per kilo printed or calculable on each size, rather than assuming bigger is automatically better. Occasionally a mid-size pack on offer beats a large pack at full price, so a quick comparison before buying is worth the thirty seconds it takes.
How many cats changes the calculation
A single-cat household getting through litter slowly doesn't always benefit from buying the largest bag available, particularly for clumping litters that can lose some effectiveness if stored for a long time before use. Multi-cat households, going through litter faster, are usually where buying in bulk makes the clearest sense.
Storage matters here too. Litter needs to stay dry and sealed to work properly, so buying more than you can store well, in a garage prone to damp for instance, can undo the saving if the product degrades before you use it.
What to check before buying more than usual
Make sure it's a litter your cat is already used to and happy using before buying a large amount of it. Cats can be genuinely particular about litter texture and scent, and a big saving isn't worth much if your cat decides they don't like a new batch.
If you're trying a different litter for the first time, buying a smaller pack first, then moving to a larger size once you know it suits your cat and your budget, is generally the safer order to do things in.
The cheaper end of the range
Everything below is in stock with us, priced with delivery worked out, and packed and posted by hand in the UK.
Catit Pea Husk Unscented Clumping Cat Litter
Unscented clumping cat litter made from upcycled pea husks, 99% dust-free
£17.99
Catit Go Natural Pea Husk Clumping Litter Vanilla
Pea husk clumping litter, 99.9% dust-free and biodegradable, lightly vanilla-scented
£17.99
Catsan Hygiene Non-Clumping Odour Control Cat Litter
Natural non-clumping litter that locks liquid into white mineral granules
£5.45
Catsan Hygiene Cat Litter
A 20LTR unscented mineral cat litter that works on odour before it develops
£20.45
Plastic Cat Litter Tray — Large & XL
A sturdy plastic litter tray in two generous sizes — practical, no-fuss, and easy to clean.
From£11.49
PawHut XL Stainless Steel Enclosed Cat Litter Box with Flip-Top Lid and Scoop
A 60cm enclosed litter box with a stainless steel tray that will not absorb odour, a 180-degree flip-top lid, deodoriser compartment, filter step and scoop.
£76.99
Catsan Ultra Clumping Odour Control Cat Litter
Fine-granule clumping clay litter, low tracking and made to stop odour forming
£10.25
App-Controlled Self-Cleaning Cat Litter Box
A smart self-cleaning litter box that scoops waste automatically and bags it contactlessly, so you never face the mess. The companion app records toilet use and weight, and sends full-box, low-litter and cleaning reminders.
£399.99
Catsan Smart Pack 2 Inlays
Two litter tray inlays that Catsan say work as well as 30 litres of ordinary litter
£13.19
Enclosed Cat Litter Box with Carbon Filter
A roomy enclosed litter box with a carbon filter that helps keep household odours in check.
From£28.99
Catsan Natural Biodegradable Clumping Cat Litter
A 20 litre bag of clumping cat litter made from wheat, fully biodegradable
£31.49
Catsan Wood Comfort Non Clumping Cat Litter
Biodegradable wood-granule litter for cats and kittens
£18.75
Common questions
- Is it cheaper to buy cat litter in bulk?
- Usually, yes, since larger packs spread the fixed costs of packaging and handling over more product, lowering the price per kilo. It's still worth checking the actual price per kilo on each size rather than assuming the largest option is automatically the best deal.
- Does litter go off if I buy too much at once?
- Most litters have a reasonably long shelf life if kept dry and sealed, but clumping performance can decline over long storage, particularly in damp conditions. Buy an amount you can realistically use within a few months and store somewhere dry.
- How much litter does the average cat get through?
- This varies with the litter type, tray size and how many cats you have, so it's worth tracking your own household's usage for a month rather than relying on a generic figure. That gives you a realistic idea of how much to buy at once.
- Should I buy a different brand if it's cheaper in a larger pack?
- Only if your cat is already happy using it, or you're prepared to introduce it gradually and watch how they respond. A lower price per kilo isn't worth much if your cat avoids the tray because they dislike the new litter.
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Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.