How many 25 g bags of crisps would a child need to eat to get the guideline daily amount of energy (for a child)?

The guideline amount of energy for children is 1500-2000 calories. The amount of calories in a pack of crisps vary between 57 calories (for a pack of Shapers Cheese and Onion Rings) to 133 calories (for a pack of Walkers Ready Salted Crisps). The high end of daily needs (2000 calories) can be fulfilled by eating about 15 packs of Walkers Ready Salted Crisps and the lower end (1500 calories) can be fulfilled by about 11.3 packs (or 12 packs) of the same. If we choose the low energy crisps, that is, Shapers Cheese and Onion Rings, the child will need to eat about 35 packs to get 2000 calories and 26.3 packs (or 27 packs) to obtain 1500 calories. Thus, the number of packs will vary depending on the specific type of crisps one chooses. Should one actually eat that many packs of crisps a day is another matter!

Hope this helps.