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Preparedness / calculator

Essential resource duration comparison

Compare separately calculated supply durations to find the earliest constraint.

How it is calculated

Each duration = usable inventory ÷ selected daily demand. Earliest constraint = minimum of the three durations.

Assumptions & limits

Stocks are assumed usable, independent and fully available. Meal portions do not establish nutritional adequacy. This compares three resources and is not a complete survival assessment. Defaults are illustrative planning inputs, not recommended minimums or a guarantee of safety.

All tools

Planning estimates only. Defaults are illustrative, not personalized recommendations. Do not use these calculations as medical, structural, electrical installation or other safety certification. For informational and educational purposes only. CivArk is not medical, legal, engineering or other professional advice. Verify information with qualified professionals and current local authorities. Estimates and preparedness plans cannot guarantee safety or survival.