Free Tool

Emergency Food
Storage Calculator

Calculate exactly how much food, water, and budget you need to keep your household prepared for any emergency.

Your Household

Number of People 2
Includes adults and children. Count children over 3 as full persons.
Preparedness Duration
Activity Level
Higher activity levels require more calories per day.
Food Type
Your Estimate
2 people · 2 weeks · Moderate
Total Calories
Food Weight
Water Needed
Days Covered
Estimated Budget
Based on current SafeCastle pricing

How We Calculate

Our estimates follow FEMA guidelines combined with real-world emergency preparedness data.

Calorie Baseline
We use 2,000–2,800 calories per person per day depending on activity level — consistent with USDA and FEMA emergency nutrition guidance.
Water Standard
FEMA recommends 1 gallon per person per day minimum — covering drinking, cooking, and basic sanitation needs.
Food Weight
Freeze-dried food averages 1.5–2 lbs per person per day. Canned goods average 3.5–4.5 lbs per person per day when fully hydrated.