Emergency food stockpile planner
The site tracks shelf-stable food as household-days and separately asks how much can be eaten without cooking. If an outage disables your cooker, food that requires cooking stops counting toward usable coverage. A remaining gap is translated into person-days and approximate meal slots so “27 more days” becomes a tangible stockpile scale rather than a restatement of the input.
For infant feeding, medical diets, allergies and other specialist needs, make a separate personal plan using professional or official guidance.
Transparent assumptions
The methodology page lists the assumptions used, and country pages link to the official sources behind the public guidance. Where the site uses its own planning assumption rather than an official standard, it says so.
From “days of food” to a usable reserve plan
The main planner distinguishes total shelf-stable food from the part that is ready-to-eat or no-cook. If cooking is unavailable, the second figure becomes the usable stock for the active scenario.
Three planning scales
The result shows household-days, person-days and approximate meal occasions. If you choose to enter your own kcal-per-person planning figure, the gap can also be expressed as a total energy target. That optional field is user-supplied rather than a medical or nutritional recommendation from the site.
Make stored food match the failure you are planning for
Three days of shelf-stable food is not necessarily three usable days if the household loses the only cooking method needed to prepare it. The planner therefore asks how much of the stored reserve is ready-to-eat or no-cook and switches to that figure when cooking becomes unavailable.
Household-days, person-days and meal occasions
Household-days are convenient for entering existing supplies. Person-days make the remaining scale easier to compare between different household sizes. Approximate meal occasions translate the same gap into an intuitive count without pretending that every meal has identical nutrition or energy content.
Optional kcal arithmetic without prescribing a diet
Households that already use an energy-planning figure can enter their own kcal per non-infant person per day. The calculator multiplies that user-supplied figure across the uncovered person-days. Leaving the field at zero keeps kcal out of the result entirely.
Infant feeding stays outside the generic model
Infant requirements are flagged for a separate continuity plan rather than being folded into adult food arithmetic. This is intentional: the site avoids guessing feeding methods, formula requirements or other individual needs.