Use our free tool below to quickly estimate your Survival Water Supply needs in seconds. No signup required. Accurate, simple, and mobile-friendly.
- How accurate is this? Designed for practical planning, not medical/financial advice.
- Can I use it on my phone? Yes, fully responsive.
- Is it free? 100% free.
This calculator provides an estimate only and does not replace professional nutritional or medical advice. Always plan extra food as a safety margin.
If your Estimated Days of Coverage is less than your Planned Survival Duration (Days), then you are short and will most likely starve. INCREASE YOUR FOOD SUPPLY!
Otherwise, you are in great shape! Well done and stay safe!