MoneyLion
Oct 19, 2026

Does Aldi or Costco Offer Better Value on 6 Common Groceries?

Written by Cynthia Measom
|
Edited by Cory Dudak
Does Aldi or Costco Offer Better Value on 6 Common Groceries?

Costco is known for offering its members great savings on bulk items, while Aldi offers low prices on groceries without the cost of a membership. Of course, when you’re buying a weekly haul of groceries, the question becomes, "Which store is cheaper?"

Based on the following online prices for several staple grocery items including milk, bread and chicken, Aldi is the cheaper choice. However, Costco wins for a several other mainstay foods when it comes to unit prices.

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Let's take a deeper dive below and see how the prices compare.

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A gallon of Friendly Farms whole milk is $2.59 at Aldi. Costco sells a two-count pack of gallon-size Kirkland Signature whole milk for $7.77, which is about $3.89 per gallon. Buying the milk at Aldi saves around $1.30 per gallon.

Winner: Aldi

At Aldi, a 20-ounce loaf of L'oven Fresh white bread is $1.65. At Costco, a two-pack of 20-ounce Mrs. Baird’s white bread is $5.44, or $2.72 per loaf.

Winner: Aldi

Aldi's Countryside Creamery salted butter is $3.19 for one pound. At Costco, four one-pound packages of Kirkland Signature salted butter are $10.20. That’s about $2.55 per pound, which saves you about $0.64 per pound.

Of course, you have to spend almost $10 and take home four pounds to get that price. However, if you use butter often, that may not matter. You can also freeze butter for up to four months if you place it in a freezer-grade container, per Land O’ Lakes.

Winner: Costco

An 8-ounce block of Happy Farms sharp cheddar cheese is $1.95 at Aldi, which works out to $3.90 per pound. Costco had a two-pound block of Pacific Cheese sharp cheddar for $6, or $3 per pound. Shopping at Costco saves $0.90 per pound.

However, Aldi may still be a better option if you don't need two pounds of cheese. It is possible to freeze block cheese, but the more aged it is, the more crumbly it will become once frozen and thawed, per U.S. Dairy.

Winner: Costco

You can buy bananas at Aldi for $0.55 per pound or singles for about 18 cents each. A three-pound package of Costco bananas is $1.69, which is about $0.56 per pound.

Winner: Aldi

Meat is often one of the most expensive items on a grocery list. Kirkwood boneless, skinless chicken breast fillets are $2.19 per pound at Aldi. A package weighs about 4.2 pounds, for an estimated total of $9.20.

Costco's Kirkland Signature fresh boneless, skinless chicken breasts are $3.39 per pound, or about $1.20 more per pound than Aldi’s chicken breasts. Plus, the average weight of a package is around 8.78 pounds, which would require you to spend around $30.

Winner: Aldi

Based on these online prices, Costco is cheaper by the pound on butter and cheese. However, you'd have to buy four pounds of butter or two pounds of cheese to get those prices.

Aldi is cheaper on milk, bread, bananas and chicken, all of which are common weekly purchases. You also don’t have to buy in bulk to get those prices.

Additionally, you have to pay a membership fee to shop at Costco. Its lowest-cost membership is $65 per year. For someone who shops at Costco only occasionally, the grocery savings need to be large enough to offset the added expense.

Editor’s note: Prices and availability are 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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Cynthia Measom
Written by
Cynthia Measom
Cynthia Measom is a veteran writer with over 15 years of experience, covering what people need to know -- from banking decisions to saving for retirement. Her articles have been featured in MSN, Yahoo Finance, INSIDER, Houston Chronicle and CNN Underscored. Additionally, Measom has a wealth of real-world personal finance experience, including in the banking, mortgage and credit card industries, which gives her a practical edge when writing personal finance advice.
Cory Dudak
Edited by
Cory Dudak
Cory has worked as a finance editor since 2018, focused on providing readers with money advice across a broad range of categories from budgeting and saving to banking and cybersecurity. He is informed by his previous work with GOBankingRates, where he also contributed to the brand’s newsletter, video and social media.