Published Sep 16, 2025 4 Min Read

Introduction

In India, Katha is a traditional unit of land measurement widely used in states like Bihar, West Bengal, Assam, and even in parts of Nepal. While familiar to local residents, it can be confusing for property buyers, sellers, and investors who are more accustomed to standardised units such as square feet. Converting Katha to Square Feet is crucial because the size of one Katha differs by state or region, impacting property valuation, registration, and financial transactions. For instance, 1 Katha in Bihar is different from 1 Katha in Assam, making standardisation essential for clarity and accuracy.

Understanding Katha conversions is especially important when dealing with real estate transactions, mortgages, or loan against property processes. Accurate conversions ensure proper assessment of land size, correct property pricing, and smooth legal documentation, thereby preventing disputes and promoting transparency in real estate dealings across India.

 

Why converting Katha to Square Feet is important? 

-Standardisation in real estate transactions: Converts traditional units into universally recognised measures for easier communication.

-Easier property valuation: Accurate measurement allows proper calculation of market value.

-Accuracy for registration and loans: Ensures correct documentation when registering land or applying for loans against property.

-Helps avoid disputes: Clear conversion reduces confusion between buyers, sellers, and local authorities.

By converting Katha to Square Feet, property owners, investors, and developers can make informed decisions, ensuring consistency in legal and financial matters.

 

Katha to Square Feet conversion formula 

The general formula for converting Katha to Square Feet is:

Square Feet=Number of Kathas×Regional Value of 1 Katha in Sq. Ft.Square Feet=Number of Kathas×Regional Value of 1 Katha in Sq. Ft.

It is important to note that the value of 1 Katha varies by state: what applies in Bihar may not hold in Assam or West Bengal. Therefore, while the formula remains the same, the regional multiplier must be used to ensure accuracy.


For example, if you own 3 Kathas in Bihar (1 Katha = 1361 sq. ft.), the total area in square feet is calculated as:

3×1361=4083 sq. ft.


Step-by-step example of Katha to Square Feet conversion 

Suppose you have 5 Kathas of land in Bihar. To convert it to square feet:

-Identify the regional value: 1 Katha in Bihar = 1,361 sq. ft.

-Multiply the number of Kathas by this value:

5×1,361=6,805 sq. ft.

-The total area is therefore 6,805 square feet.

-This step-by-step approach ensures clarity, making it easier for property buyers, sellers, and investors to calculate land size accurately. For convenience, an online area conversion calculator can automate this process.

 

Katha vs Square Feet – Key differences 

FeatureKathaSquare feet
Unit typeTraditionalStandardised
ValueVaries by regionFixed
UsageRural and local transactionsUrban and global markets
Ease of understandingRegion-specificUniversally recognized

Other common land measurement conversions in India 

UnitConversion to Sq. Ft.Notes
Bigha27,225 – 33,500Varies by state
Acre43,560Standard measurement
Decimal435.6Common in West Bengal, Odisha
Guntha1,089Used in Maharashtra, Telangana

Things to keep in mind while converting Katha to Square Feet

-Confirm regional standard: Always verify the standard Katha value in your state or district.

-Check government notifications: Some states update measurements periodically.

-Verify property documents: Cross-check the land documents to ensure the correct unit is used.

-Avoid assumptions: Don’t assume a fixed conversion; Katha varies by region.

-Use reliable tools: Employ official calculators or consult professionals for accurate conversion, especially for registration or loan against property purposes.


Conclusion 

Converting Katha to Square Feet is an essential step for anyone involved in real estate in India, particularly in states like Bihar, Assam, and West Bengal where traditional units are prevalent. Understanding regional differences ensures accurate land measurement, prevents disputes, and simplifies property valuation for buying, selling, or taking a loan against property. By using your property as collateral, you can unlock access to large funds of up to Rs. 10.50 Crore*—it is a smart way to manage your finances with ease! Get funds within 72 hours* of approval.

A clear grasp of the conversion process also aids in registration, financing, and legal compliance, while offering transparency for investors and homeowners alike. Using standard units like square feet bridges the gap between traditional local measurements and modern real estate practices, helping urban and rural property dealings align with market expectations. Whether you are a first-time buyer, a seasoned investor, or a developer, knowing how to convert Katha to square feet guarantees precise calculations, better financial planning, and smooth property transactions across India. 

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Frequently asked questions

How many square feet is 1 Katha in Assam?

In Assam, 1 Katha is generally considered equal to 2,880 square feet, though the exact measurement may vary slightly by district. Always verify with local land records for accuracy.




 

Is 1 Katha the same across India?

No, 1 Katha is not the same across India. Its size varies by state and region, typically ranging from 720 sq. ft to 3,025 sq. ft, depending on local land measurement standards.

Are online Katha to Square Feet converters reliable?

Yes, online Katha to Square Feet converters are generally reliable for quick estimates, but accuracy may vary due to regional differences in Katha measurements. Always cross-check with official land records for precision.

Can I use Katha measurements in legal property documents?

Yes, you can use Katha measurements in legal property documents in regions where it is recognised. However, it’s advisable to also include standard units like square feet for clarity and legal accuracy.

What is Katha in land measurement?

Katha is a traditional land measurement unit used in parts of India, particularly Bihar, West Bengal, and Assam, varying regionally, and commonly used to measure residential and agricultural plots.




 

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