A survival kit is a prepacked set of emergency supplies that keeps your household safe and self-sufficient for at least several days during a disaster or outage.
When the power dies or a storm rolls through, you don’t want to be hunting for a flashlight in the dark. That’s why assembling a survival kit matters — and the good news is you likely own most of what you need already. Ready.gov suggests building your kit gradually, starting with items you have around the house right now, so there’s no need for a big shopping spree.
This guide walks through exactly what goes into a basic US emergency kit, how to assemble it in an afternoon, and the mistakes that trip people up later.
What Belongs in a Basic Emergency Kit
A proper survival kit covers six areas: water, food, communication, first aid, safety tools, and power. Here’s the full list Ready.gov recommends for a basic household kit:
- Water: one gallon per person per day for several days, for drinking and sanitation
- Food: at least a several-day supply of nonperishable items
- Radio: battery-powered or hand-crank unit with NOAA Weather Radio and tone alert
- Lighting: flashlight with extra batteries
- First aid: a stocked kit plus any personal medications
- Hygiene and shelter: whistle, dust mask, moist towelettes, garbage bags, plastic ties, plastic sheeting with duct tape
- Tools: wrench or pliers for turning off utilities, manual can opener
- Navigation and power: local maps, charged cell phone with chargers and a backup battery
The National Weather Service adds a few extras worth including: sleeping bags or warm blankets, hygiene items, important documents, cash, rain gear, pet food, diapers, and a fire extinguisher if you have room.
How to Assemble Your Kit in One Afternoon
Build your kit around the essentials already in your home, then add the items you’re missing. Start by gathering what you have — most households own a flashlight, batteries, bottled water, and canned food. The goal isn’t perfection on day one; it’s getting the basics together and improving over time.
Follow this order when assembling:
- Collect water and food for several days, using the one-gallon-per-person-per-day baseline for water.
- Add communication gear: a battery-powered or hand-crank radio tuned to NOAA Weather Radio, plus phone chargers and a backup battery.
- Stock first aid supplies, sanitation items like towelettes and trash bags, and shelter materials like plastic sheeting and duct tape.
- Include tools: a wrench or pliers to shut off utilities, a manual can opener, and a whistle.
- Toss in local maps and copies of important documents.
- Pack everything in a backpack, plastic tub, or duffel bag you can grab quickly.
Once the kit is packed, you’re essentially done — but only if you maintain it. In fact, before you spend a dime on new gear, it’s worth checking what’s genuinely worth buying. Our roundup of awesome survival kits covers tested options if you’d rather buy a preassembled set.
Common Mistakes That Ruin a Good Kit
Most survival kit failures come down to three avoidable errors: treating one kit as universal, forgetting a can opener, and neglecting maintenance. None of these are hard to fix once you know they exist.
The one-size-fits-all trap is the biggest. A family with a baby needs diapers and formula. A household with a dog needs pet food. Someone on daily medication needs a spare supply. Ready.gov’s checklist works for most US households, but your kit should reflect your actual life.
The second mistake is packing canned food without a manual can opener. It’s the easiest item to overlook because electric openers and pull-tab cans dominate modern kitchens — but during a power outage, an electric opener is useless.
The third is letting the kit rot in a closet. Batteries drain, food expires, and medications lose potency. Ready.gov advises reviewing your kit periodically and replacing anything expired, which also ensures your flashlight and radio still work when you actually need them.
FAQs
How much water should one person store in an emergency kit?
Ready.gov recommends storing at least one gallon of water per person per day, for several days, covering both drinking and basic sanitation. A three-day supply for one person means roughly three gallons, though households with pets or hot climates may want more. Rotate stored water regularly to keep it fresh.
Can I build an emergency kit without spending much money?
Yes. Ready.gov explicitly advises starting with items already in your home, like a flashlight, extra batteries, bottled water, and nonperishable food. You only need to purchase what you lack, and you can add items gradually. A basic kit doesn’t require expensive gear; it requires consistent stocking and maintenance.
Where should I store my survival kit?
Store the kit in a designated place that’s easy to reach quickly, like a hall closet or near an exit, and make sure everyone in the household knows where it lives. The National Weather Service suggests keeping contents in a backpack or storage tub so they’re portable. Check the kit twice a year and replace expired items.
References & Sources
- Ready.gov. “Build A Kit.” Official FEMA guidance on basic emergency kit contents and assembly.

