Aldi vs Walmart: Which Is Actually Cheaper for Groceries?

The short answer: Aldi usually wins on a like-for-like basket

For a cart built around store brands — pantry staples, dairy, eggs, produce, and basic proteins — Aldi is typically 10% to 20% cheaper than Walmart, and the gap can stretch wider on dairy and packaged goods. Walmart closes or reverses that lead only in specific situations: when you need national brands, when you're buying in bulk multipacks, or when one big trip has to cover groceries plus household items Aldi simply doesn't carry.

So the honest version isn't "Aldi is cheaper, full stop." It's this: if your shopping list is flexible on brands, Aldi almost always wins. If your list is rigid — specific brands, huge quantities, one-stop convenience — Walmart can catch up or pull ahead. The rest of this guide shows exactly where each store wins so you can decide which one fits your actual cart.

Why Aldi is usually cheaper

Aldi's low prices aren't a coincidence or a temporary promotion — they're built into how the store operates. A few structural choices do most of the work:

• Almost everything is store brand. Roughly 90% of what Aldi sells is its own private label. You're not paying for national-brand marketing budgets baked into the shelf price.
• Small stores, few SKUs. A typical Aldi carries around 1,500 to 2,000 products versus tens of thousands at a Walmart Supercenter. Fewer items means simpler logistics, less waste, and lower overhead per item.
• Lean labor. Products are stocked in their shipping cartons, barcodes are printed on multiple sides for faster scanning, and staffing is thin. The quarter-deposit cart system means Aldi doesn't pay someone to round up carts.
• No frills. You bag your own groceries, bring your own bags, and won't find a pharmacy, deli counter, or bakery staff. Those savings show up at the register.

The result is a store optimized to move a narrow set of high-turnover items at rock-bottom prices. That's great for the core of a weekly grocery run and less useful when you need variety.

Where Walmart wins

Walmart isn't the loser here — it's a different tool. It tends to come out ahead when:

• You want national brands. Aldi's Millville cereal is cheaper than Walmart's Great Value, but if you specifically want Cheerios or Heinz, Walmart stocks them and often at competitive prices.
• You're buying in bulk. Large multipacks, warehouse-style quantities, and family-size packaging frequently beat Aldi's smaller unit sizes on cost per ounce.
• You need a true one-stop trip. Walmart Supercenters carry groceries plus toiletries, cleaning supplies, medications, kitchenware, and clothing. If skipping a second store saves you a 30-minute drive, that convenience has real value.
• You rely on pickup or delivery. Walmart's online ordering, curbside pickup, and delivery infrastructure are far more built out than Aldi's in most areas.

For a deeper look at how both stores stack up against Kroger, Costco, and regional chains, see our full cheapest grocery store comparison.

Head-to-head: a sample basket

Here's how a basic weekly basket tends to compare. These are illustrative ranges, not live prices — grocery costs swing by region, season, and week, so treat them as a realistic sketch rather than a guarantee.

The pattern is consistent: on store-brand versus store-brand, Aldi holds a small but steady edge on most items and a bigger one on dairy and packaged goods. The moment you jump to the national-brand column, Walmart's own private label (Great Value) becomes the fairer comparison — and Aldi still usually undercuts it.

Quality: is cheaper actually worse?

A common worry is that Aldi's low prices mean low quality. In practice, the reputation of its private-label lines is strong, and many Aldi products are made by the same manufacturers that produce national brands. Its award-winning lines — especially cheeses, some baked goods, and seasonal specialty items — have loyal followings.

Where Aldi can frustrate shoppers:

• Produce is hit or miss. Prices are excellent, but shelf life on fresh produce can be shorter, and selection is narrow. Buy what you'll use within a few days.
• Selection is limited by design. If you want three kinds of hot sauce or a specific gluten-free brand, Aldi may not carry it.
• Stock varies. Popular items and Aldi Finds (the rotating middle-aisle specials) sell out and don't come back.

Walmart's Great Value line is likewise a solid, consistent private label. For most everyday cooking, the quality difference between the two stores' store brands is small enough that price should drive the decision.

The real-world strategy: use both

The shoppers who spend the least don't pick one store and stay loyal — they split the trip. A practical routine looks like this:

1. Do the bulk of your grocery run at Aldi. Dairy, eggs, produce you'll use quickly, pasta, rice, canned goods, and basic proteins. This is where the store-brand savings compound across a full cart.
2. Fill the gaps at Walmart. National brands you won't compromise on, bulk multipacks, household and personal-care items, and anything Aldi doesn't stock.
3. Let your meal plan do the heavy lifting. The store you shop matters less than shopping to a list. A weekly meal plan built around cheap staples beats any single store choice, because it stops the impulse buys that wreck a budget at either retailer.

If a second stop isn't realistic — no car, tight schedule, one store in town — then pick based on your list. Brand-flexible and cooking from scratch? Aldi. Brand-loyal or need household goods too? Walmart.

How to compare the two stores yourself

Prices in this guide are ranges, and the only numbers that matter are the ones on your local shelves. Checking them yourself takes ten minutes and pays off every week:

• Compare unit price, not sticker price. The small per-ounce or per-pound figure on the shelf tag is the honest comparison. A bigger package with a scarier total is often cheaper per unit — and sometimes it's the opposite, so read the tag rather than assuming bulk always wins.
• Build a fixed reference basket. Pick ten items you buy every week — eggs, milk, your usual pasta, a canned staple, chicken, bread — and price that exact list at both stores once. That single comparison tells you more than any national average.
• Compare like with like. Put Aldi's store brand against Walmart's Great Value, not against a national brand. Comparing a private label to a name brand overstates Aldi's lead and isn't a fair test.
• Re-check seasonally. Produce and egg prices in particular swing hard through the year. The store that's cheaper on strawberries in June may not be in January.

Once you've run your own basket, you'll usually find the pattern in this guide holds — Aldi ahead on the store-brand core — but the exact size of the gap will be specific to where you live.

Which staples to prioritize at each store

Not every item is worth optimizing. Focus your energy on the categories where the price gap is biggest and the volume is highest:

• Best at Aldi: dairy (milk, butter, cheese, eggs), dried and canned pantry staples, snacks and baking supplies, and its rotating specials.
• Best at Walmart: national-brand groceries, bulk paper and cleaning products, over-the-counter medications, and anything you want delivered.

Both stores are strong on the cheapest nutrient-dense foods — beans, rice, oats, frozen vegetables, and eggs — so if your diet leans on those, you're winning at either register. The difference of a few cents per can matters far less than simply cooking those foods at home instead of eating out.

Bottom line

For a like-for-like, store-brand basket, Aldi is the cheaper store most weeks, typically by 10% to 20%, with the widest gaps on dairy and packaged goods. Walmart earns its place when you need national brands, bulk sizes, one-stop convenience, or delivery. The lowest total bill usually comes from using both — Aldi for the core, Walmart for the gaps — and, more than either choice, from shopping to a plan instead of wandering the aisles. Prices shift constantly, so check your own local shelves; the structure of who-wins-where holds up even when the exact numbers move.