Calorie-conscious crisp buyers
Compare both the stated calories in a bag and the figure per 100g. A smaller bag can contain fewer calories without having a lower calorie density.
Who is this choice for?
Online grocery shoppers who allow substitutions
If your chosen crisps are replaced, check the substitute’s pack size, nutrition and allergen information before deciding whether it meets the same need.
Shoppers balancing calories with other requirements
A no-salt crisp, a gluten-free flavour and a lower-calorie portion answer different questions. Check the exact product when more than one of those attributes matters.
What should you check?
Start with the portion you plan to eat, then compare products on the same per-100g basis. Check any salt, allergen or delivery requirement separately.
| Priority | What to check | Your needs |
|---|---|---|
| Calories per bag | Read the kcal and weight for the individual bag or stated serving. For example, Walkers UK labels Oven Baked Sea Salt at 96 kcal per 22g pack. | I want to know the calories in the amount I am likely to eat, rather than judging by the size of the multipack. |
| Calories per 100g | Use the per-100g figure when bag sizes differ. Walkers UK lists 438 kcal per 100g for Oven Baked Sea Salt and 518 kcal per 100g for Ready Salted. | When two bags are different sizes, I want a comparison that does not mistake a smaller portion for a lower-calorie crisp. |
| Salt and dietary details | Check salt per serving alongside kcal, then read the ingredients and allergen information for the exact flavour. Tyrrells labels Naked at 0.02g salt and 156 kcal per 30g serving. | A no-salt name matters to me, but I do not want to assume it also means fewer calories or meets my allergen requirements. |
| Delivery substitutions | Review the retailer’s substitution settings and any notes you can add. Tesco says it may offer an alternative when substitutions are allowed and lets shoppers advise what substitutes to pick. | If my chosen bag is unavailable, I want to check the replacement’s size, nutrition and allergens before accepting it. |
What could change your choice?
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Treating baked, lightly salted and no-salt as the same claim
Those descriptions concern different product attributes. Walkers UK lists Oven Baked Sea Salt at 438 kcal per 100g, while KETTLE Chips lists Lightly Salted at 516 kcal per 100g; Tyrrells labels Naked at 0.02g salt per 30g serving.
Decide whether calories, salt or another requirement leads your choice, and read the corresponding value for the exact product.
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Comparing bag calories without comparing bag sizes
Walkers Oven Baked Sea Salt is labelled per 22g pack, while Seabrook Sea Salted is labelled per 31.8g bag. Their bag totals describe different portions.
Use kcal per bag to assess the portion and kcal per 100g to compare the products on the same weight basis.
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Accepting a substitute on its name alone
A replacement can differ in pack size, nutrition or allergen information, even when its flavour sounds similar.
Use available substitution preferences and check the exact alternative before accepting it. Tesco says shoppers can advise its personal shoppers on substitutes.
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Applying one flavour’s details to an entire range
Nutrition and ingredients need to be checked for the flavour and pack being ordered. A dietary description does not answer every allergen or calorie question.
Read the exact product listing and pack, particularly if the item delivered differs from the one ordered.
Brand and product-line references
Walkers
Its Oven Baked Sea Salt and Ready Salted products provide a useful comparison between two stated portions and per-100g figures.
- Walkers UK labels Oven Baked Sea Salt at 96 kcal per 22g pack and 438 kcal per 100g.
- Walkers UK labels Ready Salted at 130 kcal per 25g pack and 518 kcal per 100g; check the exact flavour rather than applying one figure to the brand.
Tyrrells
Naked is a no-salt option to consider when salt is a separate priority from calories.
- Tyrrells labels Naked at 0.02g salt per 30g serving.
- The same serving is labelled 156 kcal, so its no-salt name should not stand in for an energy comparison.
KETTLE Chips
Lightly Salted is a distinct product to check if its stated dietary suitability matters to you.
- KETTLE Chips labels Lightly Salted gluten-free, vegan and vegetarian.
- It is labelled 516 kcal per 100g; the words ‘Lightly Salted’ do not give its calorie value.
Seabrook
Sea Salted offers another clearly stated bag size for comparing an online order.
- Seabrook labels Sea Salted at 164 kcal per 31.8g bag.
- Its stated 516 kcal per 100g is the more comparable figure when assessing bags of different sizes.
Pipers
Pipers lists flavour-specific crisps, including Anglesey Sea Salt and Biggleswade Sweet Chilli.
- The named flavours give you specific products to look up when choosing a taste.
- Check the nutrition and ingredients for the exact flavour and pack before comparing it on calories.
REAL Crisps
Its range includes flavour-led crisps, with product-level nutrition worth checking separately from range descriptions.
- REAL Hand Cooked Crisps describes its range as vegetarian and gluten-free.
- REAL labels Sweet Chilli at 502 kcal per 100g; check the exact flavour’s nutrition and allergen information.
Potato-crisp options on Joybuy
These listings include a potato-based snack, Oven Baked multipacks and a larger bag of spicy potato crisps. Compare the exact pack’s nutrition information before choosing for a calorie-focused order.
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PopChips Sour Cream & Onion 85g
For a calorie-focused order, check the nutrition panel for this 85g pack and the amount you intend to eat. Read its allergen information for the exact product.
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Walkers Oven Baked Variety Pack Crisps 6 x 22g
The six 22g bags give you individual portions for an online order. Check the kcal, ingredients and allergen information for each flavour rather than applying the Sea Salt product’s figures to the whole variety pack.
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Walkers Oven Baked Cheese & Onion Crisps 6 x 22g
This multipack contains six 22g bags of the Cheese & Onion flavour. Use this flavour’s own nutrition and allergen information when comparing it with other crisps or a proposed substitute.
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Be&Cheery Spicy Potato Crisps 210g
For this 210g bag, check the pack’s kcal per 100g and calculate your choice around the portion you expect to eat. Check the ingredient and allergen information as well.
Questions about choosing crisps online
How do I compare crisps when the bags are different sizes?
Check kcal per 100g for a same-weight comparison, then check kcal in the bag or serving you expect to eat. Walkers UK labels Oven Baked Sea Salt at 96 kcal per 22g pack and 438 kcal per 100g; Seabrook labels Sea Salted at 164 kcal per 31.8g bag and 516 kcal per 100g.
Does ‘Lightly Salted’ mean fewer calories?
No. The name does not establish the energy value: KETTLE Chips labels its Lightly Salted product at 516 kcal per 100g. Read the nutrition information for the exact flavour and pack.
Is a no-salt crisp necessarily lower in calories?
No. Tyrrells labels Naked at 0.02g salt and 156 kcal per 30g serving. Compare its calorie figure separately if calories are your main reason for choosing crisps.
What should I do about grocery substitutions?
Set your substitution preference and check any replacement against the pack size, nutrition and allergen details that matter to you. Tesco says it can offer an alternative when substitutions are allowed and that shoppers can advise its personal shoppers on what substitutes to pick.
Can I rely on a brand’s dietary description for every flavour?
Check the exact flavour’s ingredients and allergen information. A range description or another flavour’s label does not tell you everything about the pack in your basket; dietary suitability and calorie content are separate checks.