The calculators and guides below are completely free to use, browser-based, and require no sign-ups or downloads. Whether you’re preparing for a possible natural disaster or simple power outage, or working toward long-term self-reliance and homesteading, we hope these resources help wherever you are in your preparedness journey.
The Prepper’s Calorie Calculator helps you quickly estimate how much shelf-stable food your household should store for a given time period.
By selecting the number of adults, children, and infants in your home and choosing the foods you want to include in your pantry plan, the calculator generates a practical shopping list, a simple rationing schedule, and a transparent breakdown of the calorie math behind the results.
It’s designed to make emergency food planning easier by translating household calorie needs into realistic grocery items you can find at common stores, helping you build a balanced and sustainable preparedness pantry.
The Solar Power Calculator helps you estimate how a lightweight portable power setup might perform for vanlife, camping, travel, or small backup power situations.
By selecting a portable power station, optional expansion batteries, solar panels, wind input, and the devices you want to run, the calculator compares your available battery capacity and renewable charging potential against the estimated energy demand of those loads.
The results provide a simple performance rating, estimated runtimes, and a transparent breakdown of how the energy math works so you can visualize whether a given setup may realistically support your gear.
It’s designed to make small off-grid power planning easier by translating battery capacity, solar input, and device usage into a clear baseline model you can use when comparing equipment or sketching out a portable power system.
The Homesteader’s Feed Calculator helps estimate how much feed your animals may require over time based on the species, breed, and number of animals on your property.
By selecting your livestock, choosing compatible feed types, and indicating whether grazing or garden scraps are available, the calculator compares estimated feed intake against the duration you want to plan for.
The results generate a practical shopping list along with a clear breakdown of feeding needs, suggested feeding schedules, and water requirements so you can visualize how your animals’ daily care translates into real supply planning.
It’s designed to make livestock feed planning easier by translating animal counts, feeding practices, and available food sources into a simple baseline model you can use when preparing feed inventories or planning for seasonal or emergency conditions.
The Disaster Preparedness Atlas is coming soon…