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How Much Does World's Best Cat Litter Cost?

About $17.64 a month for one cat, $35.28 for two.

By ReviewCatLitter Editorial TeamUpdated Mar 6, 2026
World's Best natural corn litter bag on a plain background, on the cost page

Quick answer

  1. 1World's Best Cat Litter costs $17.64 a month and $211.70 a year for one cat.
  2. 2The bag itself is $29.99 for 28 lbs, $1.07 a pound, $0.58 a day.
  3. 3By cost per day it ranks 13 of 17 litters we track, against a $15.82 typical monthly bill.
  4. 4One 28 lbs bag lasts 6 weeks with one cat, 4 weeks in a multi-cat home.

Cost breakdown

Per day$0.58
Bag price$29.99
Bag size28 lbs
Cost per pound$1.07
Cost per day (1 cat)$0.58
Cost per month (1 cat)$17.64
Cost per year (1 cat)$211.70

Yearly cost by number of cats

CatsMonthlyYearly
1 cat$17.64$211.70
2 cats$35.28$423.40
3 cats$52.92$635.10
4 cats$70.57$846.80

Each row multiplies the tested one-cat cost per day by the cat count and then by 365 days. Real households sometimes run higher, because a shared box gets scooped and refilled more than a straight multiplier assumes.

What you pay for

The bottom line

World's Best Cat Litter, worked out

World's Best Cat Litter runs $0.58 a day, against a $0.52 daily median across the 17 litters we track. By cost per day, World's Best ranks 13 of 17.

One cat, one year
$211.70
Two cats, one year
$423.40
Cheaper with an equal or better clump score
$4.56/month

Dr. Elsey's Ultra matches or beats World's Best on clumping for less.

Read the full review

Clumping and dust, for the price

World's Best Cat Litter scored 9/10 for clumping (Excellent for corn) and 7.8/10 for dust (0.15mg per pour) when we tested it. A cheaper litter on this list matches or beats that clump score, so the extra money here is not buying a harder clump. For a lower dust reading at a lower price, look at Feline Pine, Dr. Elsey's Ultra or Okocat Paper.

Cheaper with the same scores

  1. 1Dr. Elsey's Ultra$13.08/month
  2. 2Boxiecat$16.73/month
  3. 3Cat Attract$17.03/month

How long one bag lasts

One cat
6 weeks
Multi-cat home
4 weeks

Worth the price if: You want eco-friendly and flushable litter with very good daily usability.

Skip it if: You're on a tight budget or want the absolute lowest dust numbers.

Cheaper and pricier tested alternatives

World's Best Cat Litter sits between Dr. Elsey's Cat Attract and Sustainably Yours on cost per day.

Questions people ask

How much does World's Best Cat Litter cost per month?

World's Best Cat Litter runs about $17.64 a month for one cat, based on our tested cost of $0.58 a day. A 28 lbs bag costs $29.99. That puts it at rank 13 of 17 litters we track by daily cost, against a $15.82 typical monthly bill.

How much does World's Best Cat Litter cost per year?

For one cat, World's Best Cat Litter costs about $211.70 a year. Multiply by cat count for a rough multi-cat estimate; real multi-cat homes often run a bit higher because boxes get used harder.

How long does a bag of World's Best Cat Litter last?

One 28 lbs bag lasts 6 weeks with a single cat and 4 weeks in a multi-cat home, based on our testing. We rate it best for eco-conscious owners who want flushable litter.

Does World's Best Cat Litter come in a bulk or warehouse-size bag?

No. World's Best Cat Litter is sold in a 28 lbs bag, under the 35-pound mark we use for warehouse size. Frisco by Chewy does come in a bulk bag, for about $9.13 a month.

Additive

Purrify - keep the cheap bag, add the odor control

A cheap litter your cat likes is worth keeping. Purrify is activated carbon you add to it, so smell is not the reason to trade up. It costs what it costs on their site, and we have not measured what it saves you.

Read our Purrify guide to what a carbon additive does to a litter you already own.

  • Activated carbon, sold in bags
  • 5.0 Google rating
  • Stocked in 40+ pet stores across Canada
ReviewCatLitter editorial team
Updated Mar 6, 2026

Price and cost figures come from the same catalog used across every review and comparison page, checked on 2026-03-06.