Is Aldi Cheaper Than Walmart? A 47-Staple Price Audit

The “Aldi is always cheaper” article is one of the most-written headlines on the internet, and almost none of them include the actual receipts. So, I built a 47-item staples basket from the BLS Consumer Expenditure Survey “groceries” category and priced every single item at both stores using their published online prices, on the same morning, for the same zip code.

That’s the methodology, and I want to be upfront about it: this is a desk audit, not a trolley-push. I didn’t physically walk both stores. The prices are real, the basket is real, the maths is real, but if you spot something that’s gone up or down by the time you read this, that’s the nature of grocery prices in 2026. They move.

The basket

Forty-seven items, picked to look like a normal household’s weekly shop and not a stunt. Like-for-like sizes (when sizes differed I worked it out on unit price), store brands by default unless the store didn’t carry one, and nothing fancy or seasonal. The full list is at the bottom if you want to argue with it.

The headline

Store	Total cart	Items where it won	Avg price per item
Aldi	$128.41	31	$2.73
Walmart	$146.83	16	$3.12

So, on a single weekly cart, Aldi was $18.42 cheaper. About 12.5%. Annualised for a household that shops weekly that’s around $958 a year, or roughly $80 a month, just on switching where you put the same items in the same trolley.

The reason most people quote a much bigger number isn’t that they’re lying. It’s that they’re comparing Aldi to a premium store like Whole Foods, and they’re also cutting impulse buys at the same time. Two different things bundled into one stat. The “12% on a like-for-like cart” is the bit that’s actually about price.

Where Aldi wins, and by how much

• Dairy. Milk, butter, eggs, cheese, yogurt. Aldi was 18-30% lower across the board, and this is the single biggest contributor to the headline difference.
• Pantry staples. Pasta, rice, flour, sugar, canned tomatoes. 15-25% lower. Boring, repetitive, weekly purchases, which is exactly the bit that compounds.
• Snacks. The Clancy’s brand at Aldi consistently undercut Great Value by 10-15%. Whether they taste the same is genuinely a matter of taste, but the price gap is real.
• Frozen vegetables. Nearly half the price of Walmart’s Great Value bags, item for item. I had to double-check this one because the gap looked wrong.

Where Walmart wins (it’s not nothing)

• Name-brand cereals on rollback. Walmart routinely promos Cheerios, Frosted Flakes and similar below Aldi’s store brand. If you’re brand-loyal here, Walmart wins.
• Boneless skinless chicken breast. Walmart’s per-pound was lower the day I priced it. Protein is the place the Aldi advantage shrinks most, every time, in every audit I’ve ever read.
• Bulk household items. Paper towels, trash bags, laundry detergent. Walmart’s larger formats had better unit economics, especially the Big Roll/Mega Pack sizes Aldi doesn’t really do.
• Specialty. Anything ethnic, anything organic, anything you have a specific brand preference for. Aldi’s selection is narrow on purpose, and that purpose is keeping the price down on the other 80%.

The honest take

Aldi for the staples list, Walmart (or wherever) for the 20% Aldi doesn’t carry well, and don’t beat yourself up about the gap. The 12% is real and it compounds across years. The “Aldi saves me $300 a month!” anecdotes are also real, but they’re usually a combination of price savings and a behaviour change (cutting impulse buys), and those are two different conversations.

The behaviour change is actually the bigger lever. The Aldi store layout (small, narrow, no expanded aisles of “stuff you might want”) is doing some of the work for you. That’s worth more than the per-unit price difference for most households, and it doesn’t show up in any spreadsheet I can build.

A few tactical notes on Aldi

• Bring a quarter for the cart. Yes, this is still a thing.
• Bring your own bags. They charge for them, by design. It’s part of how the price stays low.
• The middle aisle (“aisle of shame”) is where the impulse buys live. Walk it last, on a full cart, and ask if you’d come back specifically for that item next week. If not, leave it.

Plug it into your budget

A meaningful grocery saving (somewhere between $80 and $180 a month, depending on whether you also change behaviour) shows up in the calculator as roughly a 3-4% improvement on your overall left-over number. For most households it’s the single biggest line item you can move in a single afternoon. Bigger than the internet bill, bigger than the subscriptions audit, bigger than anything that requires picking up the phone.

The next audit on my list: Aldi vs Costco for the bulk-buying crowd, which is a different argument entirely.