Cat litter, ordered every month
Cat litter is exactly the sort of product that suits a regular order rather than a panic buy when the tray runs low, and the way to do that well is choosing the right bag size for how quickly your household actually gets through it rather than chasing the lowest headline price. This page runs through how to work that out and what to check on the bag before you commit to a size.
Working out how much you actually use
One cat with one tray, cleaned regularly rather than fully changed, uses litter more slowly than a multi-cat household with several trays, so there is no single 'right' bag size for everyone. A rough way to check is to note how long your current bag lasts once, then use that as your reorder point going forward rather than guessing each time.
Clumping litters are typically topped up rather than fully replaced at each clean, which stretches a bag further than a non-clumping litter that gets tipped out and replaced completely. That difference matters more to how often you need to reorder than the price on the bag alone.
Price per kilogram, not price on the shelf
The cheapest-looking bag by sticker price is not always the cheapest per use, because litters vary a lot in density and how much of the bag is actually usable litter once you account for dust and waste. Working out the price per kilogram, and comparing that across a couple of sizes and types, gives a fairer picture than comparing bag prices directly.
It is also worth being honest that we are not claiming to be the cheapest litter around — some supermarkets and bulk retailers can beat any single online shop on raw price per kilo for own-brand litter. What we can offer is convenience: ordering the size you actually need, when you need it, without a special trip.
Making reordering easy
The simplest way to keep a regular supply going is to buy a size that lasts a sensible stretch for your household — a month is a reasonable target for most single-cat homes on a clumping litter — and reorder as that supply runs low rather than waiting until the tray is empty. Keeping half a bag in reserve avoids an awkward gap between an old bag running out and a new one arriving.
If your household's litter use changes — a new cat, a house move, a change in how often trays are cleaned — it is worth reassessing the bag size rather than sticking with the same order out of habit, since the right size for one cat is rarely the right size for three.
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
Catsan Ultra Clumping Odour Control Cat Litter
Fine-granule clumping clay litter, low tracking and made to stop odour forming
£10.25
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
Breeder S Choice Formerly Breeder Celect Recycled Paper Pellet Cat Litter
Recycled-paper pellet litter for cats and kittens, in two sizes
From£9.99
Breeder Celect Recycled Paper Cat Litter
A 25 litre sack of UK-made recycled paper cat litter, biodegradable and low dust
£18.25
Pettex Premium Fullers Earth Clumping Cat Litter
Fuller's earth clumping litter with additive-free mineral granules
From£6.50
CJ's Kitten Wood Litter
A 10 litre wood pellet litter milled small enough for kittens to dig in, with no additives
£6.99
Common questions
- How much cat litter does one cat use in a month?
- This varies with the litter type and how often the tray is cleaned, but a single cat on a clumping litter, topped up regularly rather than fully replaced, often gets through a bag in the region of a month. Tracking how long your own current bag lasts is a more reliable guide than a general figure.
- Is clumping or non-clumping litter more economical?
- Clumping litter is usually topped up rather than fully replaced, which tends to stretch a bag further over time than a non-clumping litter that gets tipped and replaced completely at each clean. The better economics depend on your own cleaning routine as much as the litter itself.
- Do you offer a subscription for cat litter?
- Not as a running subscription at the moment. Reordering ahead of running low, in a bag size that comfortably covers your household for around a month, is the most reliable way to keep a steady supply going for now.
- What size bag should I buy for two cats?
- A larger bag generally makes sense for two cats sharing trays, since the cost per kilogram usually improves with size and you will get through it faster than a single-cat household. Checking how long a smaller bag lasts first, then sizing up proportionally, is a sensible way to judge it.
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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.