# HOW TO CALCULATE THE SIZE AND CAPACITY OF WATER TANK

For high-rise buildings, we will receive approved drawings from the office regarding water tank dimensions. But if you need to estimate a water tank for a small residential building, this article is essential for you to read.

We Divide the Calculation into two parts.

## How to calculate the volume of water requirements?

According to per IS code, **135 liters** of water we need for one person per daily use. Now let,s break up the Is assumption

According to the following points

1: For cooking **5 liters.**

2: For drinking **5 liters.**

3: For bathing and toilet, **85 liters.**

4: For cleaning of housing **10 liters.**

5: For kitchen and washing clothes **30 liters.**

### Estimation of Tank Size and Capacity:

For a typically four members containing family

For four members containing family, The total water requirement is 135 liters multiply by four which is equal to 540 liters **(135 x 4 = 540)**

We all know that (**1m3=1000 liters**)

But we also know that

1 liter is equal to 0.001 m3 (**1 liter= 0.001 m3**)

But we need 540 liters of water for our house so

Since 540 litres is equal to 0.54 m3 as (**540 x 0.001 = 0.54 m3**)

Let’s suppose the Depth of the water tank is 0.6 m.

The Area of tank becomes 0.54 /0.6 which is equal to 0.9 m2 (**0.54/0.6= 0.92 m2**)

L multiply B= 0.9 m2

We can put the value on the above-given formula If we know one of the above-given dimensions.

Note: we can also consider the Length as two times of breadth

Therefore

(L =2B)

But two times of breadth multiply by one time of breadth is equal to 0.9m2

(2B , B=0.9m2)

So B2 is equal to 0.45

(B2= 0.45)

But also B is equal to 0.67 (B=0.67)

So, therefore, Length is equal to 2 multiply by 0.67, which is similar to 1.34m (**2 x 0.67= 1.34 m**)

The water tank size of 540 liters will be.

Length will be equal to 1.34 m ( **L=1.34 m **)

And Depth is equal to 0.6 ( **D =0.6m **)

Breadth is equal to 0.67 m ( **B=0.67m **)

HELLO , I NEED WATER STORAGE CALUCLATIONS FOR A INSTITUATIONAL BUILDING .IT’S A CAMPUS DESIGN FOR ME .WHERE THERE ARE TOTALLY 300+ STUDENTS AND 50+ STAFF AND 50+ WORKERS .