How much cat litter does one cat need per month?

With TOFU, one cat with a regular-size litter box needs about 2 bags a month, roughly 12 liters: one to fill the box and one for topping up. After that, you replace all the litter. For several cats or litter boxes, the calculator below works out what you need.
- About 2 bags a month for one cat with a regular-size box
- 3–5 cm (1–2 in) of litter is enough with TOFU
- With a subscription pause, change or cancel anytime
„It absorbs odors, clumps perfectly, goes a long way and stays where it belongs: in the litter box.“
How much cat litter do you need?
Enter how many cats and litter boxes you have and whether the boxes are regular or large. The calculator shows roughly how many bags of TOFU you need each month and which subscription fits.
Your subscription: 4 bags every 2 months.
Your subscription: 8 bags every 2 months or 4 bags every month.
Your subscription: 8 bags every month. If you need a bit less, you can adjust the amount in your account.
If you need this much, feel free to reach out via Help & Contact. We'll find the right solution with you.
Based on our experience: one fill per litter box per month (regular box 1 bag, large box 2 bags) plus 1 bag per cat for topping up, at a depth of 3–5 cm (1–2 in) and with clumps scooped daily. Actual use depends on your cat and your litter box.
How much litter should go in the box?
With TOFU, 3 to 5 cm (1–2 in) is enough. We fill to about 5 cm (2 in). If the level drops a little after cleaning, that's fine until you top up. One 6-liter bag is enough to fill a regular-size litter box.
What your usage depends on
We explain the routine for one or two cats and for kittens in detail in our magazine: How often should you change cat litter?
Why you need less litter with TOFU
TOFU turns urine into firm clumps that don't crumble when you lift them out. So you only scoop out the clumps, and the rest stays clean in the box. You also need a shallower fill than with fine clay litter.
Per liter, TOFU costs more than bentonite. We did the math in our magazine on how the lower usage evens that out: An expensive myth? Why TOFU cat litter often costs less.
„Regular litter needs to be 7–10 cm deep; with this litter, 3–5 cm is plenty.“ – Leonie A., Germany
The TOFU subscription: litter arrives before you run out
You choose the amount and how often, every month or every 2 months, and TOFU comes to you automatically. With a subscription, you save compared with buying single bags. You can pause, change the amount or cancel anytime in your account.
For one cat with a regular box, 4 bags every 2 months is a good fit. Two cats usually need 3 to 4 bags a month, so 8 bags every 2 months or 4 bags every month works well.

Choose your amount and schedule
New to TOFU? Start with the trial bag. If you already know how much you need, go straight to the subscription.
What cat lovers say about how far it goes
„I'd ordered the litter to try it. My cat took to it right away, it doesn't make dust and it lasts so long.“
„Great cat litter. Clumps well, doesn't smell much and, above all, there's no dust at all. The lavender scent is really pleasant, and it goes a long way.“
„This litter is just great. It doesn't smell, it lasts and the cats accepted it right away.“
Common questions about usage and subscriptions
How much cat litter does one cat need per month?
With TOFU, one cat with a regular-size litter box needs about 2 bags a month, roughly 12 liters. One bag goes into filling the box, the second into topping up. After about 4 weeks, you replace all the litter.
How much litter should go in the litter box?
With TOFU, 3 to 5 cm (1–2 in) is enough. Fill to about 5 cm (2 in) and top up when the level drops well below 3 cm (1 in). For fine clay litter, 7 to 10 cm (3–4 in) is often recommended.
How long does a bag of TOFU last?
One 6-liter bag is enough to fill a regular-size litter box once. For one cat, with clumps scooped daily, that's a supply for about 2 weeks.
How much litter do I need for two cats?
If two cats share a regular litter box, you'll need about 3 bags a month; with a large box, about 4. The calculator above shows what you need for your boxes.
Is TOFU more expensive than clay litter?
Per liter, yes. But because you only scoop out the clumps and use a shallower fill, you need less. See the math in our magazine
How does the TOFU subscription work?
You choose the scent, amount and how often, every month or every 2 months. TOFU then comes to you automatically, and you pay less than when buying single bags. You can pause, change or cancel your subscription anytime in your account.
Can I adjust the subscription to how much I use?
Yes. If it's not enough or you have too much left over, just change the amount or schedule in your account.

Sebastian & Mathias
Founders of LucyBalu
From Munich
for all of Europe
Over 100,000 customers across Europe live with LucyBalu
Since 2019, we've been designing cat furniture that fits your home – it all started as a project for the Munich animal shelter.
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We develop every product ourselves – for what your cat needs and what you love.
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Elli and Dario personally take care of your questions. You're also welcome to visit our cat store in Munich.