Build a 72-Hour Family Emergency Kit Without Buying Everything Twice

A useful emergency kit starts with a walk through your home, not a shopping cart. The flashlight in the kitchen drawer, blankets in the linen closet, canned meals in the pantry and spare phone charger in your travel bag can all help. The job is to check what works, gather enough for your household and fill the gaps.

Use the checklist below to build a practical 72-hour starting kit. Three days is a starting point, not a promise that help will arrive then. Follow local emergency guidance and expand supplies when your household, climate or location calls for it.

Check what you already own

Enter the number of people in your household and the gallons of water you already store. Then check supplies that are usable, accessible and sufficient for everyone. Select the extra needs that apply to your family. The remaining list includes things to gather, test or replace—not necessarily things to buy.

Your household supply check

Check an item only when you have enough, it works, and you can find it quickly. These are supply checks, not a safety score. Unchecked items become your gather-or-buy list.

People in your householdWater already stored (gallons)

The baseline is 1 gallon per person per day for 3 days. Add water for pets and individual needs, hot weather, illness or pregnancy. More than three days may be needed.

Include household-specific needs

Medication, medical equipment or eyewear Infants or children Pets

Water and food

Stored drinking waterCount actual gallons above; a filter alone does not replace stored water.Three days of shelf-stable meals for everyoneCheck the pantry for ready-to-eat foods your family normally eats; account for dietary needs.Manual can opener, if your meals need oneCheck the kitchen drawer. Skip this only if all planned meals open without it.Cups, utensils and a way to serve mealsReusable dishes already at home can work; consider limited washing water.

Light and communication

Working flashlights or headlampsTest the lights already in drawers, the car or your tool kit.Matching spare batteries or charged replacementsCheck size, expiration and whether the batteries actually power your equipment.Battery-powered or hand-crank radioA radio gives another way to receive information when phone service is unavailable.Charged power bank and the right phone cablesCheck travel bags and test the charger with each phone.Paper contacts, meeting plan and local mapWrite important numbers and meeting locations; print a map you can use without service.

Health and hygiene

First-aid suppliesInventory the household kit and replace used or expired contents.Soap, hand sanitizer and personal hygiene suppliesGather toothbrushes, toothpaste, menstrual supplies and other daily essentials.Trash bags, toilet paper and cleanup suppliesCheck under the sink and in the bathroom; plan for disrupted sanitation.

Warmth and practical essentials

Blankets or sleeping bags for everyoneStart with the linen closet; match supplies to your climate.Weather-appropriate clothes and sturdy shoesUse spare clothes you already own; include rain protection as needed.Copies of essential documents and spare keysKeep insurance and identification copies protected; secure originals separately.Cash in small billsSet aside an amount that fits your household; electronic payments may be unavailable.Basic tools, duct tape and a whistleLook in the tool drawer; use utility shutoff tools only as instructed by authorities.Accessible bins or bags and a written supply locationAn existing tote or duffel can work; make sure everyone knows where supplies are.

Household-specific needs

Medication, eyewear and medical-device planReview refill needs and storage or backup-power requirements with your pharmacist or care team.Infant or child suppliesInclude appropriate food or feeding supplies, diapers, wipes and comfort items.Pet food, separate water, carrier and recordsPlan for each animal’s needs; the people-water calculation does not include pets.

Your remaining gather-or-buy list

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Start with water and meals you already use

CDC recommends at least one gallon of water per person per day for three days, and trying to store two weeks if possible. A family of four starts with 12 gallons for people. Pets and additional needs require extra. Unopened commercially bottled water is a reliable option; use suitable food-grade containers for water you fill yourself. Replace home-filled stored water every six months. See CDC’s water storage guidance.

For food, plan three days of meals your family will actually eat. A pantry rotation can be more useful than buying a separate bucket of unfamiliar meals. Count meals and portions for each person, consider allergies, and include foods that need little preparation. If your menu uses cans, test your manual opener. Include any water and cooking fuel the meals require in your plan.

Test the basics before buying replacements

Lay out your lights, batteries, radio and charging equipment. Turn each device on. Match spare batteries to the equipment and test phone cables with the phones you use. Gather blankets, clothes, hygiene supplies and the household first-aid kit, then inspect their condition. Ready PA’s supply guide is a useful reference for these categories.

Owning one item does not always mean the household is covered. A tiny flashlight may help one person while another needs hands-free light. A blanket already used nightly is not a packed evacuation supply. Decide what stays ready at home and what must be easy to carry.

Make the kit fit your family

Medication, assistive equipment, infant feeding supplies and pets need individual planning. Discuss medication access, temperature requirements and backup power with the appropriate professional rather than assuming a generic kit covers them. Avoid storing private medical details in an online checklist.

For pets, account for food, separate water, medications, a carrier or leash and records. CDC recommends a more extensive pet kit, including a two-week supply of food and water. See its pet disaster checklist.

Organize it so you can find it

Use a tote, duffel or shelf you already own. Label supplies and write down where bulky items are kept. Give everyone a quick tour. Keep copies of important documents protected, write emergency contacts on paper and choose a family meeting place. Your home water reserve may be too heavy to carry, so plan a separate portable set of essentials if you need to leave.

Buy the gaps, then maintain the kit

Use the remaining list to prioritize missing water and food, working light, health needs and weather protection. Check your cupboards again before ordering duplicates. A preassembled kit can save time, but compare its actual contents and quantities with your list; add the personal items it cannot anticipate.

Choose a regular review date. Use and replenish pantry foods, inspect batteries, charge power banks according to their instructions and adjust clothing or supplies as your family changes. The goal is a kit you understand and maintain—not simply a bag with a preparedness label.

Checklist and sources reviewed October 7, 2026. Progress is a count of supply checks, not a measure of survival or a guarantee of readiness.

For transportation planning, read what vehicle EMP testing actually shows and consider how your family would manage without a working car, fuel or charging.