How often should I change cat litter?
Last updated: February 2025 • At-a-glance reference
Change clumping litter every 1-2 weeks, crystal litter every 2-4 weeks, and non-clumping clay every 2-3 days. Scoop waste daily regardless of litter type. With activated carbon additives, you can extend clumping litter to 2-3 weeks. Multi-cat households should change 50% more frequently. The exact timing depends on litter type, number of cats, and whether you use odor-controlling additives. Watch for signs it is time: persistent odor after scooping, discolored litter, or your cat avoiding the box.
Quick Reference Chart
| Litter Type | Scoop | Full Change | With Carbon |
|---|---|---|---|
| Clumping Clay | Daily | 1-2 weeks | 2-3 weeks |
| Crystal | Stir daily | 2-4 weeks | — |
| Non-Clumping | Remove solids | 2-3 days | 3-5 days |
| Natural (Corn/Wheat) | Daily | 1 week | 10-14 days |
Multi-Cat Adjustment
Have multiple cats? Reduce the "Full Change" timeline by 30-50% per additional cat.
Example: 2 cats with clumping = change every 1 week (not 2).
5 Signs It's Time to Change
Extend time between changes with odor elimination.
Try PurrifyWant detailed explanations? Read our complete guide: How Often Should You Change Cat Litter? Complete Schedule