How to calculate quadrilateral land area?

To calculate quadrilateral land area, measure all four sides (North, South, East, West). Calculate the average of North-South sides and East-West sides. Multiply these averages to get the total area in square feet. For example, if North=50ft, South=50ft, East=100ft, West=100ft, the area would be (50+50)/2 × (100+100)/2 = 50 × 100 = 5000 square feet.

How to calculate triangle land area using Heron's formula?

To calculate triangle land area using Heron's formula: 1) Measure all three sides (a, b, c), 2) Calculate semi-perimeter s = (a+b+c)/2, 3) Apply formula: Area = √[s(s-a)(s-b)(s-c)]. For example, with sides 60ft, 80ft, 100ft: s = 120ft, Area = √[120×60×40×20] = 2400 square feet.

How to calculate circle land area?

To calculate circle land area: 1) Measure the diameter, 2) Calculate radius r = diameter/2, 3) Apply formula: Area = π × r² where π = 3.14159. For a 80ft diameter circle: radius = 40ft, Area = 3.14159 × 40² = 5026.55 square feet.

What is the difference between Satak and Katha?

Satak (also called Decimal or Dismil) equals 435.6 square feet, while Katha equals 720 square feet in West Bengal/Bangladesh. 1 Katha = 1.65 Satak. These units vary by region - in Bihar, 1 Katha = 1361.25 sq ft.

How many square feet in 1 Bigha?

1 Bigha varies by region: West Bengal/Bangladesh = 14,400 sq ft, Bihar = 27,225 sq ft, Punjab (India) = 9,070 sq ft, Himachal Pradesh = 8,712 sq ft. Always verify the regional standard for accurate conversions.

How to convert Acre to Hectare?

1 Acre = 0.4047 Hectare. To convert, multiply acres by 0.4047. Conversely, 1 Hectare = 2.471 Acres. 1 Acre = 43,560 square feet = 4,047 square meters.

What is Guntha in square feet?

1 Guntha = 1,089 square feet = 101.17 square meters. Guntha is commonly used in Maharashtra, Karnataka, and Gujarat. 40 Guntha = 1 Acre.

How to measure irregular land shapes?

For irregular land shapes, divide the land into regular shapes (triangles, rectangles, quadrilaterals), calculate each area separately, then sum them. Our calculator handles quadrilateral irregular shapes directly by averaging opposite sides.

Find Area of Land by Calculator

Calculate land area for Quadrilateral, Triangle, and Circle shapes

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Area of Quadrilateral Land by 4 sides - Calculator

Example Calculation: Pre-filled with sample values. Modify the values below to calculate your land area.

North side length (a):

Feet

Inchi

South side length (b):

Feet

Inchi

East side length (c):

Feet

Inchi

West side length (d):

Feet

Inchi

Precision:2345

Land Visualization

Interactive shape preview

Visualization is approximate and for reference only

Result Summary

Area = 5035 Square Feet

= 467.77 Square Meter

= 11.56 Dismil or Decimal or Satangsha

= 6.99 Katha

= 0.12 Acre

[1 Dismil or Decimal or Satangsha = 435.6 Square Feet]

[1 Katha = 720 Square Feet]

[1 Acre = 43560 Square Feet]

Quadrilateral area details with equation

North side a = 100 Feet

South side b = 90 Feet

East side c = 50 Feet

West side d = 56 Feet

North-South Average = ( a + b ) / 2 = ( 100 + 90 ) / 2 = 95 Feet

East-West Average = ( c + d ) / 2 = ( 50 + 56 ) / 2 = 53 Feet

Area = (North-South Average × East-West Average)

= 95 × 53 Square Feet

= 5035 Square Feet

Quick Conversion Reference

From	To	Value
1 Acre	Square Feet	43560
1 Acre	Hectare	0.4047
1 Acre	Bigha	1.613
1 Hectare	Acre	2.471
1 Hectare	Square Meter	10000
1 Bigha	Acre	0.62
1 Bigha	Katha	20
1 Bigha	Square Feet	14400
1 Katha	Square Feet	720
1 Katha	Dismil or Decimal or Satangsha	1.65
1 Dismil or Decimal or Satangsha	Square Feet	435.6
1 Dismil or Decimal or Satangsha	Katha	0.605
1 Cent	Square Feet	435.6
1 Cent	Square Meter	40.47
1 Guntha	Square Feet	1089
1 Guntha	Square Meter	101.17
1 Marla	Square Feet	272.25
1 Marla	Square Gaj	30.25
1 Kanal	Marla	20
1 Kanal	Square Feet	5445

Regional Land Measurement Standards

West Bengal / Bangladesh

Bigha Size:1 Bigha = 14400 sq ft

Katha Size:1 Katha = 720 sq ft

Popular Units:Bigha, Katha, Satak, Acre

Standard measurement system used in West Bengal and Bangladesh. 1 Bigha = 20 Katha = 33 Satak.

Bihar / Jharkhand

Bigha Size:1 Bigha = 27225 sq ft

Katha Size:1 Katha = 1361.25 sq ft

Popular Units:Bigha, Katha, Dhur, Decimal

Traditional measurement in Bihar and Jharkhand. 1 Bigha = 20 Katha = 20 Dhur per Katha.

Punjab / Haryana

Bigha Size:1 Bigha = 9070 sq ft

Katha Size:1 Katha = 0 sq ft

Popular Units:Acre, Ghumao, Kanal, Marla

Used in Punjab and Haryana. 1 Acre = 8 Kanal = 160 Marla. Katha not commonly used.

Assam

Bigha Size:1 Bigha = 14400 sq ft

Katha Size:1 Katha = 2880 sq ft

Popular Units:Bigha, Katha, Lessa

Assam uses different Katha size. 1 Bigha = 5 Katha = 20 Lessa per Katha.

About Land Area Calculator

Our advanced land area calculator is designed for accurate measurement of irregular and regular land plots. Whether you're dealing with quadrilateral land, triangular plots, or circular fields, our tool provides instant calculations in multiple units including Square Feet, Acre, Hectare, Bigha, Katha, and Satak.

📐 Quadrilateral Land Calculator (4 Sides)

Perfect for irregular four-sided land plots. Simply measure all four boundaries:

North Side (a): Top boundary of your land
South Side (b): Bottom boundary of your land
East Side (c): Right boundary of your land
West Side (d): Left boundary of your land

Formula: Area = ((a + b) / 2) × ((c + d) / 2)
This averaging method provides accurate results for trapezoid and irregular quadrilateral shapes.

📐 Triangle Land Area Calculator (Heron's Formula)

Calculate triangular land area using the proven Heron's formula:

Measure all three sides (a, b, c) in feet and inches
Calculator finds semi-perimeter: s = (a + b + c) / 2
Applies Heron's formula: Area = √[s(s-a)(s-b)(s-c)]
Converts to all popular land units automatically

Example: For a triangle with sides 60ft, 80ft, 100ft → Area = 2400 sq ft = 0.055 acres

⭕ Circular Land Area Calculator

For circular plots or round fields:

Enter the diameter (widest distance across the circle)
Calculator finds radius: r = diameter ÷ 2
Applies formula: Area = π × r² (where π = 3.14159265359)
Perfect for circular farms, round gardens, or pivot irrigation areas

🎯 Advanced Features

Precision Control

Adjust decimal places from 2 to 5 for exact measurements

Multi-Unit Support

Instant conversion between 15+ land measurement units

Visual Preview

Interactive visualization of your land shape

Regional Standards

Supports regional variations of Bigha and Katha

🌍 Common Land Measurement Conversions

• 1 Acre = 43,560 Square Feet = 4,047 Square Meters
• 1 Hectare = 2.471 Acres = 10,000 Square Meters
• 1 Bigha = 14,400 sq ft (Bengal) = 27,225 sq ft (Bihar)
• 1 Katha = 720 sq ft (Bengal) = 1,361.25 sq ft (Bihar)
• 1 Satak/Decimal = 435.6 Square Feet

💼 Professional Use Cases

Land Surveying: Professional plot measurement
Real Estate: Property area calculation
Agriculture: Farm land planning
Construction: Site area assessment

Legal Documentation: Land registry
Property Tax: Area-based calculations
Land Division: Plot subdivision
Urban Planning: Development projects

🔍 SEO Keywords & Search Terms

Popular searches: land area calculator online, quadrilateral area calculator, triangle land calculator, circle area calculator, irregular plot area calculator, land measurement calculator, property area calculator, Bigha to Acre converter, Katha to Square Feet, Satak calculator, Hectare converter, agricultural land calculator, plot area measurement tool, land survey calculator, real estate area calculator

Comments (1)

AhmadDec 1, 2025, 10:09 AM

Just change the name of Katha and Acre if you can’t then put in hindi urdu language. All is good thanks for guiding

Find Area of Land by Calculator

Area of Quadrilateral Land by 4 sides - Calculator

Land Visualization

Result Summary

Quadrilateral area details with equation

Quick Conversion Reference

Regional Land Measurement Standards

West Bengal / Bangladesh

Bihar / Jharkhand

Punjab / Haryana

Assam

About Land Area Calculator

📐 Quadrilateral Land Calculator (4 Sides)

📐 Triangle Land Area Calculator (Heron's Formula)

⭕ Circular Land Area Calculator

🎯 Advanced Features

Precision Control

Multi-Unit Support

Visual Preview

Regional Standards

🌍 Common Land Measurement Conversions

💼 Professional Use Cases

🔍 SEO Keywords & Search Terms

Related Land Measurement Tools

Land Area Converter

Katha to Square Feet

Satak to Katha Converter

Acre to Hectare

Square Meter to Square Feet

Comments (1)