Monthly Litter
25.8 lbs
Monthly Cost
$19
Bags/Month
1.3
| Litter Type | Full Replace | Usage/Cat/Week | Bag Cost |
|---|---|---|---|
| Clumping Clay | Every 4 weeks | 7 lbs | $12–$18/20 lb |
| Non-Clumping | Weekly | 8 lbs | $8–$14/25 lb |
| Crystal | Every 3 weeks | 5 lbs | $15–$22/8 lb |
| Pine | Every 2 weeks | 6 lbs | $10–$15/20 lb |
| Tofu | Every 3 weeks | 6 lbs | $14–$20/15 lb |
Inputs
Result
One cat scooped daily needs about 25.8 lbs of clumping clay per month at roughly $19/month. Two litter boxes are recommended (1 cat + 1 extra).
Inputs
Result
Two cats on crystal litter need about 36.8 lbs per month. Crystal costs more per bag ($15–$22 for 8 lbs) but uses less weight. Three boxes recommended.
Inputs
Result
Three cats scooped every other day use significantly more litter (109 lbs/month) due to the 1.2x multiplier for less frequent scooping. Four boxes are recommended.
One cat typically needs 28 to 35 pounds of clumping clay litter per month when scooped daily. Crystal litter is lighter at about 20 pounds per month, while pine pellets average 24 pounds. Scooping frequency and litter type are the biggest factors.
| Litter Type | lbs/Cat/Week | Monthly (1 Cat) | Monthly (2 Cats) |
|---|---|---|---|
| Clumping Clay | 7 lbs | 30 lbs | 60 lbs |
| Crystal | 5 lbs | 22 lbs | 43 lbs |
| Pine | 6 lbs | 26 lbs | 52 lbs |
| Tofu | 6 lbs | 26 lbs | 52 lbs |
The standard veterinarian recommendation is one litter box per cat plus one extra. So two cats need three boxes and three cats need four. Fewer boxes leads to avoidance, accidents, and territorial stress among cats.
Non-clumping clay is the cheapest at $8–$14 per 25-lb bag, but it must be fully replaced weekly which increases total volume. Clumping clay at $12–$18 per 20-lb bag is the best balance of price and longevity since you only scoop clumps and fully replace every 4 weeks.
Scoop clumping litter at least once daily and do a full box change every 3–4 weeks. Non-clumping litter should be fully replaced every week. Crystal litter lasts about 3 weeks per cat before needing a full swap.
Yes, scooping frequency has a measurable impact. Daily scooping reduces total litter consumption by about 15% because clumps are smaller when caught fresh. Waiting two days lets urine spread further, creating larger clumps that trap more clean litter.
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Last Updated: Mar 9, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.