Survival Kit Builder
Build a custom 72-hour emergency survival kit tailored to your scenario, group size, duration and climate.
Why You Need a 72-Hour Survival Kit
Emergency preparedness experts universally recommend having a kit that can sustain you for at least 72 hours. After a major disaster — earthquake, hurricane, flood or power grid failure — it typically takes emergency services 72 hours to establish organized relief operations.
The Rule of Threes
Survival priorities follow the "Rule of Threes": you can survive roughly 3 minutes without air, 3 hours without shelter in extreme conditions, 3 days without water and 3 weeks without food. This hierarchy should guide your kit building — prioritize shelter and water over food.
Water: The Top Priority
Plan for one gallon (about 4 liters) of water per person per day. For a 72-hour kit for two people, that is 6 gallons — roughly 50 pounds of water alone. Include purification tablets or a portable filter to supplement stored water from natural sources if available.
Scenario-Based Planning
A wilderness survival kit differs significantly from an urban emergency kit. In the wilderness, you need fire-starting tools, navigation equipment and shelter-building materials. In an urban setting, important documents, cash, a battery-powered radio and sturdy shoes for walking through debris take priority.
Climate Considerations
Cold climates demand extra insulation, hand warmers, and higher-calorie food. Hot climates require additional water, electrolyte supplements, sun protection, and lightweight breathable clothing. Your kit should be reviewed and updated seasonally.
Keep It Accessible
The best survival kit is useless if you cannot reach it during an emergency. Store it near an exit, in your car, or wherever you can grab it quickly. Check expiration dates on food, water, batteries and medications every six months.