Grocery price comparison: everyday staples

For each staple we gather the comparable versions at each store, leaving out packages without a declared size, non-food items and extreme values. For each store we show the median price per pound, gallon or item and the cheapest option we found. It isn't always the same product or brand: they're comparable alternatives.

We compare each store's median with that product's median price across all the stores compared and average those differences (geometric mean), with every product weighted the same. 100 would be a store charging exactly that median price for everything; 94 means 6% below. It isn't what you'd pay at the register: that depends on what you buy, how much, and on promotions.

Not always. We use each store's online catalog, which can differ from a specific location because of local promotions or a different range. It's a reference for comparing, not a guaranteed price.

They come from the stores' online catalogs. No data is available right now.