**How to calculate rectangular water tank size and capacity in litre,****water tank capacity,**in this topic we know about how to calculate rectangular water tank size and capacity in litre.

We know that liquid like water measured in standard unit cubic metre or litre. Generally water tank capacity is calculated by calculating its volume by multiplying its length width and depth dimension.

Questions arises in our minds how to calculate size of tank need to you know about its Length width and depth according to desire amount of volume of water tank capacity.

**■ requirement of water tank :-** in civil work for high rise building architect will provide you measurement of water tank according to drawing and design and it is used to Mistri to make water tank according to their size.

But low rise building and residential building purpose we need water tank and how we know about making and measuring size of water tank without drawing and design By own self.

**■ step to procedure main point Keep in mind**

1) first we should fix water tank capacity which will we need to design and make it .suppose we have need 1000 litre water tank capacity

2) calculate per day water consumption in your house for your family

3) water is consumed in cooking bathing using toilet house cleaning cloth cleaning utensil cleaning and drinking purpose

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**How to calculate rectangular water tank size and capacity in litre**

Suppose we need 1000 litre of water tank capacity and calculate its depth length and and width of water tank

We know that 1m3= 1000 litre

Water consumption and distribution on average

1) drinking and cooking -75 litre

2) bathing – 300 litre

3) house cleaning – 200 litre

4) cleaning utensil – 100 litre

5) cloth cleaning – 250 litre

6) using in toilet – 75 litre

**calculate size of water tank having capacity 1000 litre of water**

Given water tank capacity = 1000 ltre

1000 litre = 1 m3

1000 litre = length × width×depth = 1m3

We have to fix One dimension of water tank according to available of area in your house

Assume we have depth = 1 meter

Than area of water tank = 1m3/1m = 1m2

Now 1m2 area = length× width

Suppose length = twice of width

Length × width = 1m2

2 width× width = 1 m2

(Width)2 = 1m2/2 = 0.5 m2

Width = √ 0.5m2 = 0.7348 meter

Length = 2 × width

Length = 2× 0.7348 m

Length = 1.4696 m

**Hence we should require having 1000 litre water tank capacity tank size should be **Depth = 1 meter, Length = 1.4696 meter and width = 0.7348 meter

**1000 litre water tank size in feet**:- we know 1m3 is around 36 cubic feet, assume length = 4 feet, width = 3 feet & height = 3 foot, 1000 litre water tank size is 4′ × 3′ × 3′ = 36 cubic feet = 1m3, so 1000 litre water tank size is 4 × 3 ×3 in feet.

**How to calculate rectangular water tank size and capacity in litre**

**(Q2)■ calculate size of water tank having capacity 1500 litre of water**

Given water tank capacity = 1500 ltre

1000 litre = 1 m3

1000 litre = length × width×depth = 1m3

1500 litre = 1.5 m3

We have to fix One dimension of water tank according to available of area in your house

Assume we have depth = 1 meter

Than area of water tank = 1.5m3/1m = 1.5m2

Now 1.5m2 area = length× width

Suppose length = twice of width

Length × width = 1.5m2

2 width× width = 1.5 m2

(Width)2 = 1.5m2/2 = 0.75 m2

Width = √ 0.75m2 = 0.8660 meter

Length = 2 × width

Length = 2× 0.8660 m

Length = 1.732m

**Hence we should require having 1500 litre water tank capacity tank size should be**

Depth = 1 meter

Length = 1.732 meter

Width = 0.8660 meter