Emergency Supply Calculator
Enter household size and days — get your water, calorie, and power needs instantly.
| 💧 Water | |
| 🍽️ Food energy | |
| 🔋 Batteries AA (approx.) | |
Formula: 3 L drinking water + 1 L cooking per person/day; 2,200 kcal/day; ~2 AA batteries/day for radio+light.
Recommended gear for your stock
Emergency Radio · Water Filter
Emergency food guide → · Power outage checklist →