Costco Grocery Staples for $100 With Eye-Popping Amazon Markups
Online shopping makes it easy and efficient to stock up on essentials, but convenience can come with a higher price tag. It's hard to pass up adding things to your Amazon cart, but those with a Costco membership might be better off shopping directly from the warehouse for certain food items.
While Amazon often sells many of the same everyday staples, including popular Kirkland Signature products, the cost difference can be surprising. For shoppers trying to give their grocery budget an immunity boost in this economy, understanding how much more you might spend online is essential.
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Here's a side-by-side comparison of what $100 for groceries at Costco would cost if a customer opted to get the same products on Amazon.
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Kirkland Signature Fancy Whole Cashews (2.5 lbs.)
Costco price: $18.99
Amazon price: $31.99
Shopping on Amazon for Kirkland Signature cashews will cost $13 more than getting them straight from Costco. Customers can even opt for 2-day delivery on these from Costco, whereas Amazon could take several days or even a week for delivery.
GoGo SqueeZ Organic Applesauce
Costco price: $17.99 (28 ct.)
Amazon price: $35.99 (26 ct.)
If you're looking to buy applesauce packets on the go, Amazon isn't exactly a thrifty option. Customers can get the same package for less than half the price at Costco. Even with Amazon's same-day delivery for Prime members, you're paying quite a bit more for nearly the same quantity.
NuTrail No Sugar Added Keto Nut Granola
Costco price: $16.49 (22 oz.)
Amazon price: $38.57 (48 oz.)
This is a situation where the distribution of the product is different, but ultimately, Costco wins. Here, Costco is selling granola for 75 cents per ounce, whereas Amazon is selling it for about 80 cents per ounce. The difference is fairly negligible, but ultimately it boils down to whether paying around $22 more for a larger quantity at once is important to you.
Pure Life, Purified Water (24-pack, 8 fl. oz.)
Costco price: $4.99
Amazon price: $4.99
You're looking at the same price in this case. However, depending on whether or not you factor in delivery costs or the timeliness with which you need a case of water, it could tip the scales of your decision of whether to choose Amazon or Costco.
Pure Leaf Unsweetened Tea
Costco price: $19.99 (18-pack, 16.9 fl. oz.)
Amazon price: $67.84 (36-bottles, 16.9 fl. oz.)
Costco clearly wins this round, as you would be paying around 75 cents more per bottle of iced tea on Amazon. Even with Costco's 2-day delivery fee of $3, it's still more cost-effective to buy them there, as these are not available for Prime delivery.
Garofalo, Organic Pasta, Variety Pack (6-Count, 17.6 oz.)
Costco price: $11.99
Amazon price: $29.99
Buying this pack of organic pasta will cost nearly three times as much on Amazon as it would at Costco. Now that's amore.
Kirkland Signature, Pure Sea Salt
Costco price: $3.99 (30 oz.)
Amazon price: $16.99 (26 oz.)
This is a shocking difference: Buying Kirkland Signature sea salt will cost more than four times the price on Amazon than at Costco. That's a little too salty for anyone's budget.
Brooke Barley contributed to the reporting for this article.
Editor’s note: Prices and availability accurate as of July 15, 2026 and subject to change.
This article was provided by MoneyLion.com for informational purposes only and should not be construed as financial, legal or tax advice.
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