Calculate emergency water supply per person - prepper calculator for crisis preparedness.

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👉 The key facts from this guide

Water is essential for life and more important than food.

It is therefore essential that you store the right amount of water.

Use my practical calculator to determine how much emergency water supply your family should have.

Calculate your required water supply for a crisis

Simply use the slider and enter all the data, and you will receive the recommended amount.

How much water is necessary per person?

The website bbk.bund.de and most other reputable sources recommend storing approximately the following amounts of water per day:

• Drinking water: 1.5 liters per person
• Hygiene: 0.5 liters per person
• Cooking: 0.5 liters per person

Kindly note that these amounts are an absolute minimum for survival. Most German households consume approximately 217 liters of water per day (source).

Therefore, 4 liters per person per day is better for drinking, hygiene, and cooking. In the summer, for example, you will consume more water than in the winter. If you work hard, your body will also demand more water.

In addition, older people consume more water per day (approximately 2 liters of drinking water). Younger people, such as children up to 12 years old, consume approximately 1 liter per day.

I recommend preparing for 30 days or more. Start slowly so that you can bridge 3 days. Then work your way up to 10 days. From there, work your way up to 30 days. At the end, your emergency water supply is stored.

Here is my recommendation for storage: Surecan SUR5SU1 Camping Portable Water Station Water Utility Tank with Spigot, White or take a look at these water tanks.

And here is my recommendation for water purification: Potable Aqua Water Purification Tablets, Portable and Effective Water Purification or look at these water purifier tablets.

If you would rather not use the water from your tap, then buy regular water bottles and transfer the water to containers. But why transfer?

The water bottles from the supermarket almost all contain plasticizers in the plastic that are harmful to health. The expiration date applies not to the water, but to the plastic packaging. After a few months, the plastic bottles are very likely to release these dangerous plasticizers into the water.

However, purchased full water bottles are also okay if nothing else is possible, as they are sterilized and last just as long as bottled water in containers.

And you are aware that water is only ONE component of your storage. You can find the entire prepper list with PDF checklist in my article "Prepper List: Everything you need to survive (+PDF)". And in my article on the storage calculator, you can calculate your food supply.

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How do you like the calculator?

Do you have an idea of how much water you need to store now?

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