Both FEMA's Ready.gov and the American Red Cross recommend that every household maintain a 72-hour emergency kit — enough supplies to be self-sufficient for three days following a disaster. That window covers the most dangerous period after an earthquake, hurricane, ice storm, or civil emergency, when first responders are overwhelmed and utility services may be down.
The gap between FEMA's official list and what experienced preppers actually pack is significant. Official recommendations are deliberately minimal — they account for the average person with limited storage space and budget. This guide gives you both: the official baseline and the practical upgrades that make a real difference when things go wrong.
1. Water — The Absolute First Priority
Water is not negotiable. A healthy adult can survive three weeks without food but only three days without water — and that window shrinks fast in hot weather or with physical exertion. FEMA's rule: 1 gallon of water per person per day. For a 72-hour kit, that's 3 gallons per adult minimum.
The 1-Gallon Rule Explained
That single gallon needs to cover drinking (about half a gallon), cooking, and basic hygiene. In hot climates, during illness, or for pregnant or nursing women, double the estimate. Children typically need at least half a gallon per day. Round up — water is cheap and light enough that there's no reason to cut it close.
Storage Options for 72-Hour Kits
- Emergency water pouches (125ml, 5-year shelf life) — best for bug out bags; approved by US Coast Guard
- 1-gallon jugs — cost-effective, easy to rotate, good for home storage
- Water bottles (BPA-free, hard-sided) — Nalgene or Klean Kanteen work well for kits
- Water filter or purification tablets — backup to stored water; essential if you might need to source water from streams or tap water of uncertain safety
2. Food — Calorie Targets & Shelf Life
FEMA recommends "at least a three-day supply of non-perishable food." Preppers translate that to a specific calorie target: 2,000–2,500 calories per adult per day, scaled down for children (1,200–1,800) and up for high-activity adults or cold-climate scenarios.
Best Food Categories for 72-Hour Kits
- Freeze-dried meals (Mountain House, ReadyWise) — 25-year shelf life, full meals, just add hot water; best quality but highest cost
- Energy bars (Datrex, Mayday ER) — Coast Guard approved, compact, no prep needed; 5-year shelf life
- Canned goods — cheap, familiar, available anywhere; rotate every 1–3 years; heavier but nutritious
- Peanut butter — high calorie density, stable shelf life, no cooking required
- Instant oats, granola, trail mix — lightweight, calorie-dense, easy to eat cold
Shelf Life Quick Reference
| Food Type | Shelf Life | Prep Required |
|---|---|---|
| Freeze-dried pouches | 25–30 years | Hot or cold water |
| Emergency food bars | 5 years | None |
| Canned goods | 1–5 years | Can opener needed |
| Peanut butter (unopened) | 2 years | None |
| Hard candy / honey | Indefinite | None |
| Instant coffee / tea | 2–3 years | Hot water |
Don't forget a manual can opener — electric appliances won't work during a power outage. Store food in a cool, dry, dark location and rotate stock before expiry dates.
3. First Aid & Medical Supplies
The Red Cross recommends including a basic first aid kit in every emergency kit. The gap between a "basic" kit and one that handles real emergencies is significant. At minimum, your kit should cover wound management, burns, and common illness — ideally it goes further.
FEMA Minimum (First Aid)
- Adhesive bandages (assorted sizes)
- Sterile gauze pads and roller gauze
- Medical tape
- Antiseptic wipes and antibiotic ointment
- First aid manual
- Nitrile gloves (multiple pairs)
- Scissors and tweezers
- Thermometer
Prepper Additions (First Aid)
- CAT tourniquet — uncontrolled bleeding is the #1 preventable cause of death in trauma
- QuikClot hemostatic gauze — for wounds that can't be tourniqueted
- Israeli pressure bandage — military-grade wound compression
- SAM splint for fractures
- Space/emergency blanket (treat for shock)
- Oral rehydration salts (ORS) — critical for dehydration management
- CPR face shield / pocket mask
See our complete emergency preparedness first aid kit guide for trauma kit recommendations, product picks, and what the STOP THE BLEED campaign recommends for civilian preparedness.
4. Communications
During a major emergency, cell networks become congested or fail entirely. Your communications plan should never rely exclusively on your phone. FEMA and the Integrated Public Alert & Warning System (IPAWS) both emphasize battery-powered or hand-crank NOAA weather radios as a core preparedness item.
Communications Checklist
- Battery or hand-crank NOAA weather radio — receives official emergency alerts without internet or cell service; this is the single most important communications item
- Backup phone charger / power bank (10,000+ mAh) — charge before an emergency; also useful for charging a hand-crank radio's USB output
- Solar charger — slower than a power bank but renewable; good for extended scenarios
- Local street map or atlas (printed) — GPS fails without cell service or power
- List of important phone numbers (printed) — you don't memorize phone numbers anymore; your phone's contact list is useless if the battery is dead
- Whistle — signal for help if trapped or lost; requires no battery
For full reviews of the best hand crank radios including NOAA reception quality and battery life tests, see our best hand crank emergency radios guide.
5. Documents & Financial Preparedness
A common oversight in 72-hour kit checklists: critical documents. If you evacuate your home in 10 minutes, you may not be able to return for days. Without documentation, accessing insurance claims, government assistance, medical care, or even proving identity becomes significantly harder.
Documents to Include (Copies in Waterproof Bag)
- Government-issued ID (driver's license, passport)
- Health insurance cards and medical records summary
- Homeowner's or renter's insurance policy and contact numbers
- Vehicle registration and insurance
- Social Security / SIN card (number at minimum)
- Birth certificates for all family members
- Emergency contact list (10+ contacts, including out-of-area contacts)
- Bank account numbers and credit card info (encrypted or memorized, not plaintext)
- Pet vaccination records (required at many emergency shelters)
- Prescription details and doctor contact information
Cash
Keep $200–$500 in small bills ($5s, $10s, $20s). ATMs and card payments fail during power outages. Cash is universally accepted. This is not a "nice to have" — in the first 24–48 hours of a major disaster, cash may be the only way to obtain supplies.
6. Tools & Lighting
Lighting
- LED flashlight (with extra batteries, same size across all devices) — minimum 200 lumens; headlamp preferred for hands-free use
- Battery-powered lantern — for camp-style ambient lighting; one per shelter area
- Glow sticks — chemical light, no battery needed, safe for children
- Candles + waterproof matches or lighter — long-burn emergency candles (only use in ventilated areas)
Tools
- Multi-tool (Leatherman or equivalent) — pliers, knife, can opener, screwdrivers in one
- Duct tape — the universal repair solution
- Work gloves — for debris clearing and general protection
- N95 respirators — wildfire smoke, dust after structural collapse, or disease outbreaks
- Dust masks (N95 minimum) — FEMA recommendation post-earthquake or structural damage
- Wrench or pliers — to turn off household gas and water utilities
- Manual can opener (second mention — seriously, don't forget this)
- Plastic sheeting + scissors — shelter-in-place barrier for airborne hazards
- Waterproof container or dry bags — protect documents, electronics, medications
7. Medications
Medications are where most 72-hour kit guides fall short. FEMA's guidance acknowledges medications but doesn't provide enough specifics. Here's the practical breakdown:
OTC Medications to Include
- Pain relief and fever reducer (ibuprofen and acetaminophen)
- Antidiarrheal medication (critical for gastrointestinal illness or contaminated water exposure)
- Antacids
- Antihistamine (Benadryl) — allergic reactions and sleep aid
- Loperamide (Imodium)
- Electrolyte packets / oral rehydration salts
- Any pediatric medications relevant to your household
Prescription Medications
Maintain a rolling 7-day emergency supply of all prescription medications. Talk to your pharmacist — many will cooperate with providing a small emergency supply for this purpose, and insurance may allow early refills for emergency preparedness. Store in original labeled containers with dosage instructions. Include a written list of all medications, dosages, prescribing doctor, and pharmacy contact info.
Glasses & Medical Devices
- Spare eyeglasses or contact lenses + solution
- Hearing aid batteries
- Extra insulin and syringes (if applicable) — refrigerated items need an ice pack in warm conditions
- EpiPen if household member has severe allergies
8. Shelter & Warmth
Shelter and temperature management matter even if you shelter in place — a winter storm can knock out heating for days. For evacuation scenarios, shelter items become critical. Hypothermia is one of the leading causes of emergency-related death.
- Emergency mylar blankets (one per person) — reflect 90% of body heat, weigh under 2 oz, cost under $2 each; no 72-hour kit is complete without them
- Sleeping bag (rated for your climate's cold temperature) — for extended power outage or evacuation
- Change of clothes (including warm layers, rain gear, sturdy footwear)
- Warm hat and gloves — extremity heat loss is significant in cold scenarios
- Rain poncho — cheap, lightweight, waterproof
- Tarp or ground cloth — ground insulation matters as much as overhead coverage
- Hand and foot warmers (disposable HeatMax or reusable) — useful bridge if sleeping bag rating is marginal
9. Master 72-Hour Emergency Kit Checklist
Print this section and keep it with your kit. Check off items as you build or audit your kit.
💧 Water
- 3 gal/person stored water
- Water pouches (backup)
- Water filter (LifeStraw / Sawyer)
- Purification tablets
- Collapsible container
🥫 Food
- 2,000+ cal/person/day × 3 days
- No-cook snacks (bars, nuts)
- Freeze-dried meals (optional)
- Manual can opener
- Camp stove + fuel (optional)
- Eating utensils + bowls
🩺 First Aid
- Full first aid kit
- CAT tourniquet
- Hemostatic gauze
- Israeli pressure bandage
- Nitrile gloves (4+ pairs)
- Thermometer
- First aid manual
📻 Communications
- NOAA hand-crank/battery radio
- Power bank (10,000+ mAh)
- Phone charging cables
- Printed contact list
- Local street map (printed)
- Whistle
📄 Documents
- Gov't ID copies
- Insurance documents
- Birth certificates
- Prescriptions list
- $200–500 cash (small bills)
- Waterproof document bag
🔦 Tools & Lighting
- LED flashlight + batteries
- Headlamp
- Battery lantern
- Multi-tool
- Duct tape
- Work gloves
- N95 masks
- Utility shut-off wrench
💊 Medications
- 7-day prescription supply
- Ibuprofen + acetaminophen
- Antidiarrheal
- Antihistamine
- Electrolyte packets
- Spare glasses/contacts
🏕️ Shelter & Warmth
- Mylar blanket (1 per person)
- Sleeping bag
- Warm layers + rain gear
- Sturdy footwear
- Tarp or ground cloth
- Hand/foot warmers
10. Family-Specific Additions
Infants & Toddlers
- Formula (if not breastfeeding) — powdered is lighter but requires water; ready-to-feed for zero-water scenarios
- Diapers and wipes (3-day supply is substantial — 30–60 diapers for infants)
- Baby food or soft foods if transitioning
- Pacifiers, teething toys, comfort items
- Portable baby carrier (for hands-free evacuation)
- Baby's medical records and vaccination history
Elderly Family Members
- Extended prescription medication supply (14 days minimum if possible)
- Medical device batteries (hearing aids, CPAP backup battery)
- Written medical history and list of physicians
- Medicare/Medicaid cards (copies)
- Extra eyeglasses and reading glasses
- Mobility aids (cane, walker) — note: these may affect evacuation planning
Pets
- 3-day food and water supply per pet
- Vaccination and medical records (required at many emergency shelters)
- Collar with ID tag and leash
- Crate or carrier
- Sanitation supplies (waste bags, litter)
- Comfort items (toy, blanket) — reduces stress behavior
- Photo of you with your pet (for proof of ownership if separated)
11. Recommended Products
These are specific product recommendations with Amazon affiliate links (we may earn a commission, at no extra cost to you). All chosen for value, quality, and shelf-appropriate performance.
Datrex Emergency Water Pouches (64-Pack)
~$25
US Coast Guard-approved 125ml pouches with 5-year shelf life. Compact, portable, won't leak — the gold standard for bug out bag water. One pack covers roughly two people for two days at minimum hydration.
Check current price on Amazon →Mountain House Classic Bucket (Emergency Food Supply)
~$90–130
30 servings of freeze-dried meals with 30-year shelf life. Just add hot water — or cold water for most meals with a longer soak time. Mountain House has the best taste reputation in freeze-dried food. The bucket format protects from moisture and pests. See our emergency food kit comparison for full brand analysis.
Check current price on Amazon →Midland ER310 Emergency Hand Crank Radio
~$50
NOAA weather radio with hand crank, solar panel, and USB charging port. Receives all NOAA weather channels and standard AM/FM. The USB port charges your phone from the hand crank — slowly but reliably. One of the best bang-for-buck emergency radios available.
Check current price on Amazon →MyFAK Compact First Aid Kit (My Medic)
~$60
One of the only pre-built civilian kits that includes genuine trauma supplies: a tourniquet, hemostatic gauze, Israeli bandage, and chest seal — not just bandages. Worth every dollar over a standard first aid kit for emergency preparedness purposes.
Check current price on Amazon →12. Cost Breakdown: Budget Kit vs. Complete Kit
| Category | Budget Kit (~$150) | Complete Kit (~$400) |
|---|---|---|
| Water (storage + filter) | $15 — gallon jugs + tablets | $40 — pouches + LifeStraw + container |
| Food (3 days / 1 adult) | $30 — canned goods + energy bars | $100 — freeze-dried + energy bars + snacks |
| First Aid | $20 — standard kit | $80 — trauma kit + CAT tourniquet + QuikClot |
| Communications | $20 — basic AM/FM radio + power bank | $70 — Midland ER310 + 20,000 mAh bank + solar charger |
| Tools & Lighting | $25 — flashlight + work gloves + duct tape | $60 — headlamp + lantern + multi-tool + N95 + tarp |
| Shelter & Warmth | $10 — mylar blankets × 4 + rain poncho | $40 — mylar blankets + sleeping bag + hand warmers |
| Documents & Cash | $25 — waterproof bag + $200 cash | $55 — waterproof bag + $500 cash + extra storage |
| Miscellaneous (sanitation, masks, etc.) | $10 | $20 |
| Total (1 adult) | ~$155 | ~$465 |
For families, multiply food, water, and shelter items per person. The budget kit covers the official FEMA baseline; the complete kit adds preparer-grade upgrades that make a meaningful difference in a real emergency. If budget is a concern, see our emergency preparedness on a budget guide — we cover $50, $100, and $200 build paths.
Frequently Asked Questions
What are the most important items in a 72-hour emergency kit?
The most critical items are water (1 gallon/person/day minimum — 3 gallons for 72 hours), food (2,000+ calories/person/day, non-perishable), a first aid kit, a NOAA weather radio, a flashlight with extra batteries, copies of critical documents, and a backup phone charger. Water is always the top priority — dehydration becomes dangerous within 24 hours in warm conditions.
How much water do I need in a 72-hour emergency kit?
FEMA recommends 1 gallon of water per person per day — so 3 gallons minimum per adult for a 72-hour kit. For a family of four, that's at least 12 gallons. Hot climates, physical activity, pregnancy, and illness all increase this requirement. Include a water filter or purification tablets as a backup in case your stored supply is insufficient or compromised.
What's the difference between a 72-hour kit and a bug out bag?
A 72-hour emergency kit is a supply cache designed to cover three days of needs — it can be stored in bins, a closet, or a backpack. A bug out bag is specifically a grab-and-go backpack optimized for quick evacuation. Every bug out bag should meet 72-hour kit standards, but a 72-hour kit doesn't need to be portable — it can be a tote bin stored in your basement. Build the supply list first; then decide whether to organize it into an evacuation-ready bag.
How often should I update my 72-hour emergency kit?
At minimum, review your kit twice per year — when clocks change is an easy reminder. Check expiration dates on food, water, and medications. Test batteries in flashlights and radios. Update documents to reflect any changes (new insurance, new prescriptions, household changes). Replace mylar blankets if they've been opened. The most common reason kits fail in emergencies is expired or depleted supplies.
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