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Co-op is on average 28.6% dearer than Sainsbury's
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If we had drawn a different but equally fair set of the products both shops sell, the figure would fall inside this range 95 times out of 100. Products of the same brand are drawn together.Read the other way: Sainsbury's is on average 22.3% cheaper than Co-op (a percentage changes with the shop you start from).
Based on all 581 branded products we compared at both shops. Below are 75 of them, spread across categories by household spending. For the full list, email research@allsupers.co.uk.
Co-op was dearer on 544, cheaper on 22 and the same price on 15 of these 581 products. These counts show direction only; the average above also weighs how large each difference is and each category's share of spending.
Each row is the same branded product at both shops.
How we compare prices
We compare the price per kilo, per litre or per item, so pack sizes do not distort the result. Items sold by the piece are only compared with a similar number of pieces. Prices as of 31 August 2026; where a cheaper promotion was running, we use that price.
How the figure is worked out
For each spending category we average the price differences of the products both shops sell, then combine the categories by their share of household spending. The ranking on the Price Monitor page compares all shops at once, through every other shop as well, so it can differ from this two-shop figure; for these two shops the ranking gives Co-op 30.9% dearer. Categories with fewer than 10 products both shops sell: meat: 5 products, 22% of the weight. They count at their full share of household spending, like every category, so they can move the figure more than their few products suggest.
The badge shows the price difference per unit for Co-op.
| Sainsbury's | Co-op | |
|---|---|---|
| Co-op 56% dearer per kg | ||
| Co-op 22% dearer per kg | ||
| Co-op 65% dearer per kg | ||
 |  | Co-op 24% dearer per kg |
| Co-op 50% dearer per kg | ||
| Co-op 2% cheaper per kg | ||
 |  | Co-op 24% dearer per item |
 |  | Co-op 115% dearer per item |
| Co-op 27% dearer per kg | ||
| Co-op 65% dearer per kg | ||
| Co-op 83% dearer per item | ||
 |  | Co-op 15% dearer per item |
 |  | Co-op 20% dearer per kg |
 |  | Co-op 50% dearer per kg |
 |  | Co-op 48% dearer per item |
| Co-op 57% dearer per kg | ||
| Co-op 24% dearer per kg | ||
| Co-op 65% dearer per kg | ||
 |  | Co-op 18% dearer per kg |
 Blue Dragon Wide Noodles Wok Ready 300g £6.33/kg | Co-op 24% dearer per kg | |
| Co-op 57% dearer per kg | ||
| Co-op 20% dearer per kg | ||
| Co-op 49% dearer per kg | ||
| Co-op 7% dearer per litre | ||
| Co-op 40% dearer per kg | ||
| Co-op 24% dearer per kg | ||
| Co-op 57% dearer per kg | ||
| Same price per kg | ||
| Co-op 7% cheaper per kg | ||
| Co-op 59% dearer per kg | ||
| Co-op 15% dearer per litre | ||
| Co-op 14% dearer per kg | ||
| Co-op 26% dearer per litre | ||
| Co-op 10% dearer per kg | ||
 |  | Co-op 22% dearer per kg |
| Co-op 40% dearer per kg | ||
| Co-op 9% dearer per kg | ||
 |  | Co-op 23% dearer per kg |
| Co-op 6% dearer per kg | ||
 |  | Co-op 15% dearer per kg |
| Co-op 75% dearer per litre | ||
 |  | Co-op 10% cheaper per litre |
 |  | Co-op 5% dearer per litre |
| Co-op 24% dearer per litre | ||
 |  | Co-op 25% dearer per litre |
| Co-op 24% dearer per kg | ||
| Co-op 32% dearer per litre | ||
| Co-op 16% dearer per litre | ||
| Co-op 75% dearer per kg | ||
| Co-op 16% dearer per litre | ||
| Co-op 7% dearer per kg | ||
| Co-op 30% dearer per kg | ||
| Co-op 58% dearer per kg | ||
| Co-op 27% dearer per kg | ||
| Co-op 18% dearer per kg | ||
 |  | Co-op 32% dearer per item |
 Panadol Extra Advance Painkillers, 500mg Paracetamol and 65mg Caffeine Tablets, 16's £0.22 each | Co-op 40% dearer per item | |
| Co-op 7% dearer per litre | ||
| Co-op 88% dearer per litre | ||
| Co-op 34% dearer per item | ||
| Same price per litre | ||
 |  | Co-op 31% dearer per item |
| Co-op 28% dearer per kg | ||
| Co-op 29% dearer per kg | ||
| Co-op 41% dearer per kg | ||
| Co-op 46% dearer per litre | ||
| Co-op 51% dearer per kg | ||
 Tango Zero'd Thirst Trap Peach, Pineapple and Orange 2L £0.75/l | Co-op 67% dearer per litre | |
 |  Andrex Ultimate Quilts Toilet Rolls x9 £0.76 each | Co-op 25% dearer per item |
 |  | Co-op 60% dearer per kg |
| Co-op 14% dearer per item | ||
| Co-op 3% cheaper per kg | ||
 |  | Co-op 5% dearer per litre |
| Co-op 4% dearer per kg | ||
| Co-op 11% dearer per litre |
