How To Calculate Land Area Or Plot Area


How To Calculate Land Area Or Plot Area:

Sometimes we may need to know the area of any land or plot for various reasons such as buying, selling of land, or constructing house/building etc. In this article, I will explain how to calculate land area or plot area for a site.

Area Formula For Different Shapes are given below:

land area plot area calculation

But for complex shaped land you cannot easily calculate the area. In that case, we use HERON’s Formula which is given below:

Land Area Calculation:

land area plot area calculation

Where S = Half of the Perimeter of the triangle

S = (a + b + c)/2

a = Distance of AB

b = Distance of BC

c =  Distance of AC

Let’s take an example,

land area plot area calculation

First of all, divide the land area into minimum possible no. of triangle. Then measure all the required distance (like AB, AC, AE etc) by using a tape or chain.

1. For △ ACD:

AC = 10 feet.

CD = 12 feet.

AD = 14 feet.

S = (a + b + c)/2 = (10 + 12 + 14)/2 = 18 feet.

land area plot area calculation

2. For △AED:

AD = 14 feet.

AE = 14feet.

DE = 12 feet.

S = (a + b + c)/2 = (14+14+12)/2 = 20 feet.

land area plot area calculation

land area plot area calculation

3. For △AEB:

AB = 16 feet.

BE = 12 feet.

AE = 12 feet.

S = (a + b + c)/2 = (16 + 12 + 12)/2 = 20 feet.

land area plot area calculation

Total Area Of Land = 58.78 + 75.89 + 71.55 = 206.22 ft²

Note:

This method does not give appropriate result for curve shaped area, for curve shaped area we need to use difinite integral method.

I hope you have now enough knowledge about plot area calculation. If you have any problem or question you can ask in the comments.

Also Read – 
Center Line Method Of Estimation

How To Calculate Soil/Sand For Plot Filling

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11 thoughts on “How To Calculate Land Area Or Plot Area”

  1. How to calculate 47/1140 ownership shares into kanals and marlas
    Appreciate for your help
    Thanks Ijaz
    Plano, Texas. USA

    Reply

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