I want to give you a genuinely practical answer here rather than a hedged "it depends on what you buy" response. Because while there is nuance in certain categories, the overall picture for a student doing a regular weekly shop is actually pretty clear.
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The Headline Answer
On a like-for-like basket of everyday student staples, bread, milk, eggs, pasta, rice, tinned goods, fruit, vegetables, and basic protein, Aldi and Lidl are consistently the cheapest options. Tesco sits in the middle. Sainsbury's is generally more expensive than Tesco. Waitrose and M&S Food are at the top end and worth treating as occasional purchases rather than your main shop.
Why Aldi and Lidl Win on Price
Both Aldi and Lidl operate a fundamentally different business model from traditional British supermarkets. Their ranges are narrower; you won't find fifteen different brands of pasta sauce, just one or two. Their stores are simpler in layout and more efficient to run, and they source a significant proportion of their produce directly from suppliers rather than through multiple distribution layers.
The practical result is that their own-brand products, which make up the vast majority of what they sell, cost meaningfully less than equivalent Tesco or Sainsbury's own-brand items. I'd estimate a typical student's weekly shop at Aldi or Lidl costs roughly 20 to 30 percent less than the same items at Tesco and 30 to 40 percent less than the equivalent at Sainsbury's.
What Tesco Does Well
I'd be honest that Tesco has genuine advantages over Aldi and Lidl in specific situations. The range is significantly wider, which matters if you're cooking dishes that require more specific ingredients. The Clubcard loyalty scheme delivers real savings on specific products each week, often making individual Tesco items price-competitive with Aldi when the Clubcard discount is applied.
Tesco Express and Metro stores are also more conveniently located in central London than most Aldi or Lidl branches, which matters if you're doing a top-up shop mid-week rather than a planned main shop. Convenience has a real cost in terms of time as well as money.
What Sainsbury's Does Well
Sainsbury's tends to be slightly more expensive than Tesco on most items, but it has a larger and genuinely better-quality prepared food and meal ingredients range. If you're cooking something specific rather than doing a pure staples shop, you're more likely to find exactly the ingredients you need. The Nectar loyalty card also offers periodic good-value promotions.
My Supermarket Comparison for Students
| Supermarket | Price Level | Best For |
| Aldi | Cheapest | Main weekly staples shop |
| Lidl | Cheapest (comparable to Aldi) | Main weekly staples shop |
| Tesco | Mid-range | Top-up shops, Clubcard discounts, wider range |
| Sainsbury's | Higher than Tesco | Specific ingredients, Nectar deals |
| Waitrose / M&S Food | Most expensive | Occasional treats |
The Strategy I'd Actually Use
I'd do my main weekly shop at Aldi or Lidl for staples, pasta, rice, tinned goods, eggs, dairy, fruit, vegetables, and frozen protein. I'd use Tesco, with a Clubcard, for any specific ingredients I can't find at Aldi or Lidl or for mid-week top-ups given the store coverage in London. I'd treat Sainsbury's as occasional for specific needs and Waitrose as genuinely rare, perhaps for something particular you want once in a while.
A Note on Location in London
One practical consideration I'd flag for you specifically: Aldi and Lidl stores are less densely distributed across central London than Tesco or Sainsbury's. If you live in an inner Zone 2 or Zone 1 area, the nearest Aldi or Lidl might require a slightly longer journey than your nearest Tesco Express. I'd factor this into your planning: doing a weekly main shop at Aldi with a short bus or tube ride and using a closer Tesco for mid-week top-ups is the combination I'd suggest for most London students.
Frequently Asked Questions
Is Aldi or Lidl cheaper in the UK?
They're broadly comparable on overall basket price. Some studies put one slightly ahead of the other in specific months, but in my experience the difference is genuinely marginal; both are significantly cheaper than Tesco or Sainsbury's for everyday staples.
How much cheaper is Aldi than Tesco for a typical student shop?
I'd estimate roughly 20 to 30 percent cheaper on a like-for-like basket of everyday staples, though Tesco's Clubcard promotions can close the gap on specific items when discounts are applied.
Should I use the Tesco Clubcard as a student?
Yes, I'd genuinely recommend it. It's free to join, and the Clubcard app unlocks specific promotional prices that can make certain Tesco items price-competitive with Aldi, particularly on categories like meat, dairy, and breakfast goods.
Is it worth going to Aldi or Lidl if they're further away from my student house?
For your main weekly shop, yes — the 20 to 30 percent saving on a £30 basket is £6 to £9 per week, roughly £100 per term, which I'd say justifies a slightly longer journey once a week. For daily top-ups, the convenience of a closer Tesco usually wins.
Which is the best supermarket for student meal deals?
Tesco, Sainsbury's, and Co-op all offer meal deals (typically sandwich, snack, and drink for a fixed price) at varying rates. I'd compare what each offers near your campus, but I'd also remind you that making lunch at home consistently beats even the cheapest meal deal financially.
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Key Takeaways
- Aldi and Lidl are the cheapest options for a student weekly shop, typically 20 to 30 percent cheaper than Tesco and 30 to 40 percent cheaper than Sainsbury's on equivalent staples.
- Tesco's Clubcard can close the price gap on specific promoted items and is free to join, worth having even if Aldi is your main shop.
- Sainsbury's is generally more expensive than Tesco but has a wider ingredient range for more specific cooking needs.
- I'd do your main weekly shop at Aldi or Lidl and use Tesco for convenient top-ups and specific items you can't find at the discounters.
- Location matters in London. Aldi and Lidl are less centrally distributed than Tesco, so factor in travel time as part of your shopping planning.