How many cans, jars and packs?
Pick a food, your household and how long, and see how many cans, jars or packs you'd need.
SupKit plans on 2,250 calories a day for an adult, 1,600 calories for a child and 1,100 calories for a toddler.1 Choose a food, who's at home and how many days, and the calculator turns energy into cans, jars or packs. SupKit estimate
How it works
Your household's daily energy comes from SupKit's figures for each age band, the same as the app. The calculator takes the share you choose and divides it by the energy in one pack, rounding up.
Energy per pack comes from SupKit's catalogue estimates. SupKit estimate
Allergies, dietary needs and children
Plan around everyone at home: allergies, intolerances and diets come first, and familiar food matters most for children. Recipes vary between brands, so always read the label of the product you buy.
- Canada names 11 priority allergens: eggs, milk, mustard, peanuts, crustaceans and molluscs, fish, sesame, soy, sulphites, tree nuts, and wheat and triticale.2
- Packaged foods must declare priority allergens and gluten sources by plain source names in the ingredient list, a 'Contains' statement, or both.3
- Companies may add a 'May contain' warning for possible cross-contamination; it is not a substitute for good manufacturing practices.3
Young children
Questions
How many cans of beans for 30 days?
For one adult eating nothing but baked beans, about 215 cans; as a quarter of a mixed diet, about 54. This uses SupKit's estimate of 315 calories a can.
Sources
- SupKit planning rules (SupScore 2026.5), SupKit. SupKit's own planning data.
- Food allergies, Health Canada. Checked 28 October 2026.
- Before you shop: food allergies and allergen labelling, Canadian Food Inspection Agency. Checked 28 October 2026.
- Nutrition for Healthy Term Infants: Recommendations from Six to 24 Months, Health Canada. Checked 28 October 2026.
- Infant botulism, Health Canada. Checked 28 October 2026.
We summarise official guidance in our own words. Always follow advice from your local authorities.


