Is Costco better than Amazon for bulk household items?

For many shoppers, Costco is often the better value for bulk household items like toilet paper, paper towels, trash bags, and laundry detergent — especially if you buy larger pack sizes and compare unit prices. Amazon is often better for convenience, selection, and delivery, especially if you want items shipped to your door or need smaller quantities.

Short verdict

• Choose Costco if: you have storage space, want the lowest unit cost on staples, and are happy buying in bulk.
• Choose Amazon if: you want home delivery, more brand options, smaller pack sizes, or the flexibility of Subscribe & Save.

Important caveat

Prices can vary a lot by item, region, promotions, and whether you’re comparing Costco warehouse, Costco online, or Amazon with or without Subscribe & Save. Costco’s in-warehouse prices are often stronger for bulk staples, while Costco online can be higher due to shipping and fulfillment costs. Amazon can sometimes be competitive on price, especially with discounts or subscriptions. Because deals change frequently, it’s best to compare the current unit price for the exact item you want.