Calculadora de Preparación para Emergencias

Ingresa el tamaño de tu familia y duración de preparación para calcular agua, alimentos, medicamentos y suministros necesarios. Incluye checklist personalizada y recomendaciones por tipo de emergencia.

Adults

Children (4-12)

Infants (0-3)

Pets

Duration

Scenario

Water Needed

22.8

7.6

Per Day

Containers

12 x 2L Bottles

Total Calories

12,000

kcal

4,000

Per Day (kcal)

Food Breakdown

Grains: 1.2 kgProtein: 0.9 kgCanned Goods: 1.2 kgDried Foods: 0.6 kgSnacks: 0.3 kg

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What is an Emergency Preparedness Calculator?

An Emergency Preparedness Calculator is a planning tool that computes the exact quantities of water, food, medical supplies, and essential gear your household needs to survive independently during emergencies. Based on FEMA and Red Cross guidelines — 1 gallon (3.8L) of water per adult per day and 2,000 calories per adult per day — the calculator adjusts for household size (adults, children, infants, pets), duration (72 hours to 1 year), and disaster type (earthquake, hurricane, pandemic, winter storm). Unlike static checklists, this interactive tool provides personalized quantities, visual container breakdowns, categorized supply lists with priority levels, budget estimates with monthly payment plans, and storage space calculations. Whether you are building a 72-hour go-bag or a month-long shelter-in-place stockpile, the calculator ensures nothing is forgotten.

How to Use This Calculator

Enter your household size: number of adults, children (4-12), infants (0-3), and pets
Select the preparation duration from 72 hours to 1 year and choose a disaster scenario
Review the Water & Food tab for water volume, container breakdown, and calorie-balanced food categories
Check the Supply Checklist tab for prioritized items across 8 categories (medical, hygiene, tools, communication, lighting, shelter, documents, cash)
Use the Budget tab to estimate total cost and plan monthly purchases, then check Storage for space requirements

Frequently Asked Questions

How much water do I need per person for emergency preparedness?

FEMA recommends 1 gallon (3.8 liters) per person per day for drinking and sanitation. Children ages 4-12 need about 2.5 liters per day, while infants need 1.5 liters (including formula preparation). In hot climates or during hurricanes, increase by 20%. For a family of four, a 72-hour supply requires approximately 45 liters (12 gallons) of water. Store water in food-grade containers and rotate every 6 months.

What is the minimum emergency supply I should keep at home?

FEMA recommends a minimum 72-hour (3-day) supply of water, food, and essential supplies. However, many experts now recommend 2 weeks due to lessons from recent disasters. The absolute minimum includes: water (1 gallon per person per day), non-perishable food (2,000 calories per adult per day), a first aid kit, flashlight, battery-powered radio, extra batteries, medications, and important documents in a waterproof container.

How much does a basic emergency kit cost?

A basic 72-hour emergency kit for one person costs approximately $75-150 USD. For a family of four, expect $250-500 for a 2-week supply. The largest expenses are food ($3-5 per person per day for shelf-stable items) and water storage containers. You can reduce costs by building your kit gradually — spreading purchases over 3-6 months — and by choosing bulk items from warehouse stores. The calculator provides a detailed budget breakdown and monthly payment plans.

How much storage space do emergency supplies require?

A 72-hour kit for one person requires roughly 30-50 liters of storage space (about one large box). Water is the biggest space consumer at 1 liter per liter stored plus 10% for containers. A 2-week supply for a family of four needs approximately 400-600 liters (7-10 large boxes). The storage calculator provides exact volume and weight estimates, helping you plan where to store supplies in your home — closets, under beds, or in a dedicated area.