Convert Katha to Decimal

Learn how to convert from katha to decimal with this comprehensive guide. Know the difference between these units and understand the conversion process.
Loan Against Property
2 min read
31 October 2025

Real estate transactions are as much about numbers and calculations as they are about finances. This is why fractions, decimals, and percentages are frequently used in property sales and purchases. A decimal, specifically, refers to a number in which the whole part and the fractional part are separated by a decimal point. In simpler terms, a decimal is used to represent values smaller than one, with the digits after the decimal point indicating the fraction of the whole number.

 

Popular katha to decimal conversions

Converting katha to decimal is essential in various regions where these units are used for land measurement. Below are some popular katha to decimal conversions that are commonly encountered in real estate transactions and land-related dealings:

  1. 1 katha to decimal: This conversion serves as the baseline reference, helping individuals understand the basic equivalent of one katha in decimal units.
  2. 1 kattha in decimal: The term "Kattha" might be used interchangeably with "Katha" in some regions. Converting 1 kattha to decimal provides a clear understanding of the relationship between these two units.
  3. 1 kattha in dismil: Dismil is another unit of land measurement and converting 1 kattha to dismil offers insights into the correlation between katha and Dismil.
  4. Katha to dismil: This conversion is important when dealing with land transactions in areas where both katha and dismil are commonly used. It facilitates communication and understanding between the parties involved.

These conversions are fundamental when dealing with land transactions and real estate matters, especially in areas where katha is the standard unit of measurement.

 

How to convert katha to decimal? 

Converting katha to decimal involves a straightforward process. The conversion factor may vary depending on the region. Generally, the formula to convert katha to decimal is:

Decimal = Katha × conversion Factor

The conversion factor can differ based on the local measurement standards. It is crucial to consult local authorities or use reliable conversion tools to obtain accurate results.


Katha to decimal formula with example

Let us consider a hypothetical region where the conversion factor is 0.025. If you have 5 katha of land, the conversion to decimal would be:

KathaDecimal
1 Katha to Decimal6.612 Decimal
2 Katha to Decimal13.224 Decimal
3 Katha to Decimal19.837 Decimal
4 Katha to Decimal26.449 Decimal
5 Katha to Decimal33.061 Decimal
6 Katha to Decimal39.673 Decimal
7 Katha to Decimal46.285 Decimal
8 Katha to Decimal52.897 Decimal
9 Katha to Decimal59.51 Decimal
10 Katha to Decimal66.122 Decimal
11 Katha to Decimal72.734 Decimal
12 Katha to Decimal79.346 Decimal
13 Katha to Decimal85.958 Decimal
14 Katha to Decimal92.57 Decimal
15 Katha to Decimal99.183 Decimal
16 Katha to Decimal105.795 Decimal
17 Katha to Decimal112.407 Decimal
18 Katha to Decimal119.019 Decimal
19 Katha to Decimal125.631 Decimal
20 Katha to Decimal132.244 Decimal

 

What is Katha? Meaning, usage, and regional variations

The term "Katha" is a traditional unit of land measurement that is commonly used in some South Asian countries, particularly in India, Bangladesh, and Nepal. It is important to note that the dimensions and values associated with a katha can vary between regions and states. The use of katha is deeply rooted in historical and cultural contexts, and its definition might differ based on local traditions and practices.

The katha is typically employed in real estate transactions and land measurements. It represents a unit of area or land size, similar to other regional units like bigha and Marla. The value of one katha is not universally standardised and can differ significantly from one location to another.

In some regions, the katha might be defined by a specific square footage or square metre measurement. For example, in West Bengal, India, 1 katha is often considered equal to 720 square feet. However, in other areas, the value could be different.

Region1 Katha in Square Feet
West Bengal720
Bihar750 - 2000
Bihar (Patna only)1361
Jharkhand1742
Assam2880

What is 1 katha to decimal?

The conversion of 1 Katha to Decimal varies depending on the state because Katha measurements are not standardised across India. In Bihar and Jharkhand, 1 Katha is commonly considered approximately 3.13 Decimal, while in West Bengal and Assam, the conversion may differ based on local land measurement practices. Before calculating Katha to Decimal, always verify the regional conversion standards mentioned in land records or revenue department documents


What is decimal and why is it used in land measurement?

The term "decimal" as a measurement unit typically refers to a standardised unit of land measurement, particularly in the Indian subcontinent. It is used to quantify the area or size of land and is recognised in countries like India, Bangladesh, and Nepal. The use of decimal is characterised by its standardisation, making it a convenient unit for real estate transactions, land surveys, and documentation.


Dimensions of katha

The dimensions of a katha as a land measurement unit are not universally standardised, and they can vary significantly across different regions.

Here are a few examples of the dimensions of katha in different regions:

  1. West Bengal, India:

    In West Bengal, 1 katha is often considered equivalent to 720 square feet. This is a common understanding in real estate transactions in the state.

  2. Bangladesh:

    In Bangladesh, the dimensions of a katha can vary between urban and rural areas. In rural areas, 1 katha is often considered equal to 720 square feet, similar to the definition in West Bengal. In urban areas, the katha might be standardised to a different measurement.

  3. Nepal:

    In Nepal, the dimensions of a katha can vary between regions. In some areas, it might be defined based on square metres rather than square feet. Local authorities or official documents can provide specific information regarding the dimensions of a katha in a particular region.

Unit of AreaConversion Unit
1 Katha to Decimal3.13 Decimal
1 Katha to Acre0.031 Acre
1 Katha to Bigha0.05 Bigha
1 Katha to Sq.Ft.1361.25 Sq.Ft.
1 Katha to Dismil3.13 Dismil
1 Katha to Gaj151.25 Gaj
1 Katha to Chatak30.25 Chatak
1 Katha to Hectare0.012 Hectare
1 Katha to Sq.Mt.126.46 Sq.Mt.
1 Katha to Sq.Yd.151.25 Sq.Yd.
1 Katha to Guntha1.25 Guntha
1 Katha to Ground0.56 Ground
1 Katha to Sq.Karam45.0 Sq.Karam
1 Katha to Murabba0.0012 Murabba
1 Katha to Lessa20.0 Lessa
1 Katha to Cent3.13 Cent
1 Katha to Biswa Kacha0.5 Biswa Kacha
1 Katha to Marla5.0 Marla
1 Katha to Dhur20.0 Dhur
1 Katha to Biswa1.01 Biswa
1 Katha to Kanal0.25 Kanal
1 Katha to Killa0.031 Killa
1 Katha to Pura0.023 Pura
1 Katha to Ares1.26 Ares
1 Katha to Ankanam18.91 Ankanam
1 Katha to Gajam151.25 Gajam
1 Katha to Perch5.0 Perch
1 Katha to Nali0.63 Nali

 

Dimensions of decimal

Decimal has standardised dimensions across regions, making it a convenient unit for international transactions and comparisons.

Unit of AreaConversion Unit
1 Decimal to Hectare0.00405 Hectare
1 Decimal to Katha0.31 Katha
1 Decimal to Sq.Ft.435.56 Sq.Ft.
1 Decimal to Acre0.01 Acre
1 Decimal to Bigha0.016 Bigha
1 Decimal to Sq.Mt.40.46 Sq.Mt.
1 Decimal to Guntha0.39 Guntha
1 Decimal to Dhur6.4 Dhur
1 Decimal to Cent1.0 Cent
1 Decimal to Ground0.18 Ground
1 Decimal to Sq.Karam14.4 Sq.Karam
1 Decimal to Lessa6.4 Lessa
1 Decimal to Biswa Kacha0.15 Biswa Kacha
1 Decimal to Marla1.6 Marla
1 Decimal to Chatak9.68 Chatak
1 Decimal to Biswa0.32 Biswa
1 Decimal to Sq.Yd.48.4 Sq.Yd.
1 Decimal to Kanal0.079 Kanal
1 Decimal to Gaj48.4 Gaj
1 Decimal to Killa0.01 Killa
1 Decimal to Pura0.0075 Pura
1 Decimal to Ares0.404 Ares
1 Decimal to Dismil1.0 Dismil
1 Decimal to Ankanam6.05 Ankanam
1 Decimal to Gajam48.4 Gajam
1 Decimal to Perch1.6 Perch
1 Decimal to Nali0.201 Nali

 

State-wise katha to decimal conversion

Katha to Decimal conversion varies significantly across Indian states because Katha is a traditional, non-standard land measurement unit. In Bihar, 1 Katha is commonly around 3.125 Decimal, while in West Bengal it may vary between 1.5 to 2 Decimal depending on the district. In Assam, 1 Katha is often considered 2.66 Decimal. Jharkhand follows a similar system to Bihar in many areas, but local variations exist. Since there is no uniform national standard for Katha, each state or even district defines its own conversion. Therefore, always refer to local revenue records or official land departments for accurate and legally valid state-wise conversions.


Difference between katha and decimal

Katha and decimal are both units of land measurement, but they differ significantly in several aspects. Understanding the conversion between these units is essential when dealing with land transactions that involve them. For individuals looking to leverage their land assets, calculating potential financing options using a loan against property EMI calculator can provide crucial financial clarity before moving forward.

When it comes to land transactions, the choice between katha and decimal often depends on local customs and regulations. However, as real estate practices become more global, the trend is shifting toward using decimal units for greater clarity and compatibility. For accurate conversions between katha and decimal, an area conversion calculator can be a valuable tool to ensure precise calculations in land measurements.


Why accurate katha to decimal conversion matters?

  • Ensures correct property valuation: Accurate conversion helps determine the true market value of a property, preventing overvaluation or undervaluation during sale or purchase transactions.
  • Supports smooth property registration: Correct land measurements help avoid discrepancies in registration documents and reduce the risk of delays or legal objections.
  • Prevents ownership disputes: Accurate area calculations ensure that buyers and sellers agree on the exact land size, minimizing boundary and ownership conflicts.
  • Essential for loan approvals: Banks and financial institutions verify land area before approving loans against property. Incorrect conversions may affect eligibility and valuation.
  • Helps calculate taxes accurately: Property tax, stamp duty, and registration charges are often linked to land area and value, making precise conversion important.
  • Improves land record accuracy: Proper conversion ensures consistency between traditional land measurements and official records.
  • Assists in land development planning: Builders, investors, and landowners rely on accurate measurements for construction, subdivision, and project planning.
  • Reduces legal and financial risks: Accurate conversions help avoid costly errors, disputes, and documentation issues during property transactions.

Why katha to decimal conversion varies across states?

The size of Katha differs because land measurement systems developed independently across regions during historical land revenue administration. As a result, there is no single national standard for Katha. Before purchasing land, always verify the Katha measurement mentioned in:
-Sale deed
-Mutation records
-Revenue records
-Survey documents
-Registration documents
This helps ensure accurate Katha to Decimal conversion and prevents valuation or ownership disputes.


Assam katha to decimal conversion

In Assam, Katha is generally larger than in West Bengal and Bihar. A standard 1 Katha equals approximately 6.61 Decimal based on traditional land measurement practices. This unit is widely used for agricultural land and rural property transactions.

KathaDecimal
1 Katha6.61 Decimal
5 Katha33.05 Decimal
10 Katha66.10 Decimal

Jharkhand katha to decimal conversion

Jharkhand follows land measurement standards similar to Bihar in several districts. In many areas, 1 Katha is approximately equal to 4 Decimal, though local variations may apply depending on district records and historical land measurement systems.

KathaDecimal
1 Katha4 Decimal
5 Katha20 Decimal
10 Katha40 Decimal

West Bengal katha to decimal conversion

In West Bengal, the size of a Katha differs from Bihar. Traditionally, 1 Katha equals 720 square feet, which converts to approximately 1.65 Decimal. This measurement is commonly used in residential and urban property transactions across Kolkata and other districts.

KathaDecimal
1 Katha1.65 Decimal
5 Katha8.25 Decimal
10 Katha16.50 Decimal


Bihar katha to decimal conversion

In Bihar, Katha is one of the most commonly used land measurement units. In many parts of the state, especially around Patna, 1 Katha is approximately equal to 3.13 Decimal. This conversion is widely used for property registration, mutation records, agricultural land transactions, and valuation purposes. However, local variations may exist, so buyers should verify measurements through official land records.

KathaDecimal (Approx.)
1 Katha3.13 Decimal
5 Katha15.65 Decimal
10 Katha31.30 Decimal


In conclusion, understanding the conversion from katha to decimal is crucial for accurate land transactions and legal documentation. Local standards and historical context should be considered to ensure precision in measurements and avoid disputes.

 

Some popular area conversion units

Meter To GajBigha To Hectare
Acre To CentMeter To Sq Yard
Guntha To AcreFeet To Metre
Bigha To GajBiswa In Square Feet
Gaj To BighaAcre To Kanal

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Frequently asked questions

How many decimals are there in katha?

The number of decimals in one katha depends on the conversion factor, which can vary by region. You can refer to the online katha to decimal converters for reference.

How many decimals are there in 10 katha?

Multiply the number of katha by the conversion factor specific to your state or region to obtain the equivalent in decimal.

How many decimals are there in 100 katha?

You can multiply the number of katha by the conversion factor for your state or region to determine the equivalent in decimal.

Which are globally accepted land measurement units?

Globally accepted land measurement units include square metres, acres, hectares, and square feet. These units facilitate international transactions and comparisons.

How big is 5 katha?

A katha is a traditional unit of area in India. The size of 5 kathas can vary greatly depending on the region. In general, 5 kathas is about 6720 square feet or 0.154 acre.

What is 1 katha in acre?

In general, 1 katha is equivalent to approximately 0.03 acres but it can vary based on region.

What is 1 sq ft in katha?

A katha is typically equivalent to about 1,440 square feet, so 1 square foot would be approximately 0.000694444 katha. Again, this can vary slightly based on the region in India.

Can I convert Katha to Decimal online?

Yes, Katha to Decimal conversion can be done online using land measurement calculators available on real estate and government websites. These tools give quick results, but accuracy depends on correct regional conversion values since Katha varies by state and district. Always cross-check with official land records or local revenue offices before using the result for legal or property transactions.

Which states use Katha as a land measurement unit?

Katha is commonly used in eastern and northeastern India, including Bihar, Jharkhand, West Bengal, Assam, and parts of Odisha and Uttar Pradesh. It is also used in some nearby regions of Nepal. However, its value is not uniform and differs by state and district. Despite the metric system, Katha remains widely used in traditional land dealings.

Is Katha recognised in official land records across India?

Katha is recognised only in states where it is traditionally used. However, it is not a standard national unit. In official land records, Katha is often recorded alongside standard units like square metres, acres, or hectares. Government authorities prefer metric units for clarity, but local units are still maintained for regional land administration and documentation purposes.

How do revenue departments verify Katha measurements?

Revenue departments verify Katha measurements using official land records, cadastral maps, survey reports, and field inspections. Survey officers measure land using standard instruments and convert local units into standard metric units. Since Katha varies by region, authorities apply state-specific conversion factors to ensure accuracy in land records, ownership details, taxation, and legal documentation.

Can incorrect Katha conversion affect property registration?

Yes, incorrect Katha conversion can seriously affect property registration. It may lead to wrong land area records, incorrect valuation, and errors in stamp duty calculation. Such mistakes can cause disputes, delays, or rejection during registration. In some cases, it may also create legal issues regarding ownership boundaries, making accurate conversion essential for smooth property transactions and compliance.

What documents mention Katha measurements?

Katha measurements are mentioned in land sale deeds, record of rights (RoR), mutation records, khatiyan documents, property tax receipts, survey reports, and land title papers. In regions where Katha is used, these documents often include both local and metric units. This ensures clarity in ownership, land area, and legal verification during property transactions and government records.

How is Katha used in agricultural land transactions?

Katha is widely used in agricultural land transactions to measure and describe farmland size in traditional terms. Farmers and buyers use it for buying, selling, leasing, and dividing land. It helps in local understanding of land value. However, for official registration and taxation, Katha is converted into standard units like decimal, acres, or hectares.

Can lenders verify Katha-to-Decimal calculations during loan approvals?

Yes, banks verify Katha-to-Decimal conversions during loan approvals against property documents, valuation reports, and land records. They ensure the land area is correctly calculated before approving loans against property. Any mismatch in conversion can affect eligibility, valuation, or loan amount. Banks often rely on certified valuers and official records for accurate verification.

Is Decimal a standard unit accepted across all Indian states?

Decimal is widely used in several Indian states but is not the official national standard. India primarily follows the metric system, including square metres and hectares, for land measurement. However, Decimal remains popular in eastern states for practical use in property dealings. Its acceptance depends on regional land revenue practices and local administrative systems.

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