Price comparison
Amazon Groceries vs Costco: Which Supermarket Is Cheaper?
Side-by-side grocery price comparison between Amazon Groceries and Costco in Australia. Prices are tracked daily across thousands of products so you can see at a glance which supermarket wins on the categories you buy most.
Not enough head-to-head pricing data to call an overall winner yet. Check back soon — fresh prices land daily.
Quick Comparison
Amazon Groceries products tracked
2,218
Costco products tracked
20
Head-to-head categories
0
Head-to-head by category
Not enough head-to-head pricing data yet. Check back soon — fresh prices land daily.
Want the full picture?
Browse every grocery product OpenOrder tracks across Australia supermarkets — with live unit-price comparisons.
Prices updated daily. Last updated Jul 28, 2026.