Food, water, & supply estimates for your whole household — people, pets, & livestock
Pick one simple thing first. Good starts are bread, broth, soap, a small herb garden, cloth napkins, or easy sewing repairs.
Choose skills that save money and help in hard times. Good examples are preserving food, dehydrating produce, line drying, and basic mending.
Keep a small area for jars, labels, vinegar, baking soda, salts, repair items, and spare containers.
Choose one skill or supply area to build this season, such as pantry rotation, preserving food, a small kitchen herb garden, home apothecary basics, or simple DIY repair supplies. Consistent small upgrades are usually easier to maintain than trying to change everything at once.
No. Start with what your household already uses and build in layers: 72 hours, 2 weeks, then 30 days. Slow, steady stocking usually works better than panic buying.
The tool shows more than drinking water. It also includes basic cooking water and basic hygiene or sanitation water so you can plan for a more realistic emergency setup.
No. These are planning estimates. Age, disability, climate, illness, pregnancy, medications, and activity can all change real needs. Use this as a preparedness starting point, not a diagnosis or prescription.
Start with familiar foods first. Preparedness works best when the stored food is truly edible, tolerated, and emotionally manageable for the people who will need it. Texture, routine, and safe foods matter just as much as shelf life.
Use a smaller layered system. A modest reserve that is organized and rotated is more useful than a large stash you cannot manage. Try under-bed bins, closet shelves, stackable containers, or small backups tucked behind the foods you already use every week.
No. This calculator runs in your browser and does not save your household details to a server. Export and print actions are generated locally on your device.
Nameplate wattage is the power number printed on the device itself, its charger, or its manufacturer label. It is often near the plug information, model number, or electrical rating area. This is usually the best starting point for generator and battery planning.
Some devices, especially anything with a motor or compressor, need a brief extra surge to start. A refrigerator, freezer, pump, or air conditioner may run at one wattage but need much more for a second or two when turning on. Your backup power setup has to handle both.
Watts tell you how much power something is using right now. Watt-hours tell you how much energy it used over time. Kilowatt-hours are just larger energy units: 1 kilowatt-hour equals 1,000 watt-hours.
Different countries use different household electrical standards. A device may not safely run, or may not plug in at all, if the voltage or frequency does not match your region. Always check the appliance label or manual before buying a generator, inverter, or travel adapter setup.