6 liters of cat litter is about 3.6 kilograms. 6 liters of cat litter can last an adult cat about three weeks. If the cat litter is replaced less frequently, it can last longer.

The type of cat litter will also affect the length of time the cat litter is used. If you use tofu cat litter, how long will it take? It is very short, and bentonite cat litter is relatively economical. In addition, when choosing cat litter, in addition to considering the length of use, factors such as the cat litter's water absorption, hygroscopicity, deodorizing properties, and whether it will generate dust should also be considered.