Coles vs Woolworths: which supermarket is cheaper in Australia?

Why there's no universal answer

Price comparison studies published over the years consistently show that Coles and Woolworths sit close to each other across a broad basket—sometimes within a few percent. Which one is cheaper for you depends on the specific products you buy, your location, and what is on special that week.

Any headline like "Coles is 5% cheaper" reflects a particular basket at a particular time. Your basket may produce the opposite result.

How promotions shift the comparison week to week

Both chains rotate large numbers of products on half-price or "down down"–style specials weekly. A product that is cheapest at Woolworths this Wednesday may revert to full price next week, while Coles runs the same item on special.

This rotation means that checking before each shop—rather than committing to one chain permanently—is often more useful than loyalty to a single store. Use your weekly catalogue alongside a live price search to spot which chain is currently cheaper on your high-frequency items.

Categories where one chain often edges ahead

While prices shift, a few patterns recur across independent comparisons:

• Home-brand staples (flour, rice, pasta, canned goods): both chains have comparable own-brand ranges and pricing. Compare unit prices rather than headlines.
• Fresh produce: varies by region, season and store condition. Checking in person often beats any online price.
• Meat and deli: promotional pricing on chicken, mince and pork can swing significantly between chains. This is a high-value category to watch each week.
• Household and cleaning: Woolworths and Coles both run deep discounts here; Aldi and budget independents can undercut both.

Distance and convenience still matter

For most households, the cheapest store in the metro might not be the cheapest option once you factor in petrol, time, and the effort of a second stop. A modest saving per shop can disappear quickly if it requires a dedicated trip.

A practical rule: use price comparison for the top 10–15 items in your basket (the ones with the most spend) rather than trying to optimise every line.

How to run your own basket test

1. Write down the 10–15 products you spend the most on each week.
2. Search each product on TrolleyChecker and note the current listed price and chain.
3. Add up both baskets and see which is lower—then check whether it matches when you land at the shelf.

Repeat this monthly rather than weekly to smooth out single-week promotions and get a more reliable sense of which chain suits your household's specific basket.