Emergency food calculator
Work out how much emergency food your household needs in calories, with a sample shopping list from everyday long-life food.
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 Two adults and two children need about 23,100 calories for 3 days.
The assumptions
Each person's daily energy comes from their age band, the same figures the SupKit app uses.
| Who | A day |
|---|---|
| Toddler | 1,100 calories |
| Child | 1,600 calories |
| Teenager | 2,400 calories |
| Adult | 2,250 calories |
| Older adult | 2,000 calories |
Babies are planned separately: their milk and food go on the checklist as feeding supplies.
The shopping list
Calories for each item are SupKit's catalogue estimates. SupKit estimate Swap in what your household actually likes eating.
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.
- US law names nine major food allergens: milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans and sesame (sesame added from 2023).2
- Labels must name each major allergen's source, either in brackets in the ingredient list or in a 'Contains' statement next to it.2
- 'May contain' warnings are voluntary in the US, so not every maker uses them and their absence is not a guarantee.3
Young children
Questions
How much energy does each person 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. These are planning figures, not nutritional advice.
Sources
- SupKit planning rules (SupScore 2026.5), SupKit. SupKit's own planning data.
- Food Allergies: What You Need to Know, U.S. Food and Drug Administration. Checked 28 October 2026.
- Have Food Allergies? Read the Label, U.S. Food and Drug Administration. Checked 28 October 2026.
- Choking Hazards | Infant and Toddler Nutrition, Centers for Disease Control and Prevention. Checked 28 October 2026.
- Foods and Drinks to Avoid or Limit | Infant and Toddler Nutrition, Centers for Disease Control and Prevention. Checked 28 October 2026.
We summarise official guidance in our own words. Always follow advice from your local authorities.


