Tools

Sized to your household, not the average one.

Generic preparedness advice has to guess at your household. These calculators don’t — describe your family and get your numbers. Every tool is free, works without an account, and cites the source of every constant it uses.

Water & Food

How much water and food does your household need?

People, kids, pets, climate, dietary needs, and how long a supply — turned into gallons, calories, containers, and a shopping list. Built on ready.gov's one-gallon-per-person-per-day guidance.

Open the calculator →

Emergency Cash

How much emergency cash should you keep on hand?

Physical cash for the days ATMs and card readers are down — sized by emergency type, household, and pets, with the bill mix that actually works and where to store it. Separate from your emergency savings.

Open the calculator →

More on the way: a generator and power sizing tool, an emergency savings estimator, and a household kit builder. Have a calculation you wish existed? Tell us: editor@middleclassprepper.com.