Katha to Decimal Converter
Convert Katha to Decimal or Decimal to Katha using the correct local standard. See the same land area in square feet, square metres and acres, with a custom option for district-specific records.
Both directionsBangladesh & West BengalCustom local Katha sizeNo sign-up
CONVERT LAND AREA
Choose the location before trusting the number.
Katha is not the same size everywhere. Select Bangladesh or West Bengal, or enter the square feet stated in your local deed before converting.
Common Katha values
Same area in every unit
Decimal always equals 435.6 sq ft. Katha changes by location, so the selected Katha size controls every result.
The calculation runs in your browser. No land value is uploaded.
DIRECT ANSWER
How many Decimal are in 1 Katha?
In the Bangladesh and West Bengal standard, 1 Katha is 720 square feet. Since 1 Decimal is 435.6 square feet, 1 Katha equals approximately 1.6529 Decimal. Multiply Katha by 1.6529 for this standard. A Bihar or Jharkhand Katha can differ by district, so confirm the local land record first.
Katha → Decimal: Katha × 720 ÷ 435.6Decimal → Katha: Decimal × 435.6 ÷ 720BUILT AROUND THE LOCAL STANDARD
One converter for local land-measurement questions.
The result shows its measurement basis, supports reverse conversion and keeps common land units together.
Location first
Choose Bangladesh or West Bengal before calculating. For another place, enter the Katha size from the local deed or record.
Convert both ways
Swap Katha and Decimal in one action, or start from square feet, square metres or acres.
Five connected units
See Katha, Decimal or Shotok, square feet, square metres and acres for the same land area.
Custom local standard
Use district-specific measurements without pretending that one Katha value applies everywhere.
QUICK CONVERSION TABLE
Common Katha to Decimal values
This table uses 1 Katha = 720 sq ft, the Bangladesh and West Bengal standard. Choose a different Katha size in the converter for another local record.
| Katha | Decimal / Shotok | Square feet | Square metres | Acre |
|---|---|---|---|---|
| 0.5 | 0.8264 | 360 | 33.4451 | 0.0083 |
| 1 | 1.6529 | 720 | 66.8902 | 0.0165 |
| 1.5 | 2.4793 | 1,080 | 100.3355 | 0.0248 |
| 2 | 3.3058 | 1,440 | 133.7806 | 0.0331 |
| 2.5 | 4.1322 | 1,800 | 167.2255 | 0.0413 |
| 3 | 4.9587 | 2,160 | 200.6706 | 0.0496 |
| 4 | 6.6116 | 2,880 | 267.5612 | 0.0661 |
| 5 | 8.2645 | 3,600 | 334.4516 | 0.0826 |
| 10 | 16.5289 | 7,200 | 668.9032 | 0.1653 |
| 20 | 33.0579 | 14,400 | 1,337.8065 | 0.3306 |
REGIONAL STANDARD
Why location changes a Katha conversion
Decimal has a fixed area. Katha is a traditional unit whose size can depend on the state, district or record system.
Government references commonly state approximately 1.65 Decimal.
The state registration FAQ also gives 16 Chatak per Katha.
Check the district deed, survey record or official land portal before converting.
Enter the recorded square-foot size to calculate a transparent result.
WHEN ONLINE ANSWERS DISAGREE
3.125 and 6.612 can both be calculations, but neither is universal.
A result near 3.125 Decimal assumes a Katha of about 1,361.25 sq ft. A result near 6.612 Decimal assumes about 2,880 sq ft. Those figures must not be silently applied to Bangladesh or West Bengal, where the cited government standard is 720 sq ft. Always match the multiplier to the land record's location.
COMMON ANSWERS
Half Katha, 2 Katha 2 Chatak and reverse conversion
How much is half Katha?
Under the 720 sq ft standard, 0.5 Katha is 360 sq ft or approximately 0.8264 Decimal.
How much is 2 Katha?
2 Katha is 1,440 sq ft or approximately 3.3058 Decimal under the Bangladesh and West Bengal standard.
How much is 2 Katha 2 Chatak?
Because 16 Chatak make 1 Katha, 2 Katha 2 Chatak is 2.125 Katha, or approximately 3.5124 Decimal.
How do I convert 5 Decimal to Katha?
Multiply 5 by 435.6 and divide by 720. The result is 3.025 Katha under the 720 sq ft standard.
OFFICIAL REFERENCES
Check the measurement against official land records.
Use these references to check the fixed Decimal area, the Bangladesh and West Bengal Katha standard, and local land records.
Reviewed 26 July 2026- Bangladesh Ministry of LandStandard units of land measurement in BangladeshGovernment reference: 1 Decimal = 435.6 sq ft and 1 Katha is approximately 1.65 Decimal.
- West Bengal RegistrationDirectorate of Registration and Stamp Revenue FAQWest Bengal government reference: 1 Katha = 16 Chatak = 720 sq ft and approximately 1.65 Decimal.
- Bihar BhumiBihar land records and citizen servicesOfficial place to check Bihar land records when a district-specific Katha measurement must be confirmed.
- NGDRS, Government of IndiaNational Generic Document Registration SystemOfficial national registration service and reference point for state land-registration systems.
COMMON QUESTIONS
Katha to Decimal converter FAQ
Direct answers for Bangladesh, West Bengal, Bihar, Decimal to Katha, Chatak, Bigha and common land values.
How many Decimal are in 1 Katha?
Under the Bangladesh and West Bengal standard, 1 Katha equals 720 square feet or approximately 1.6529 Decimal. A local Katha can be different elsewhere.
How many Decimal are in 2 Katha?
Using 1 Katha = 720 square feet, 2 Katha equals approximately 3.3058 Decimal.
How many Decimal are in 5 Katha?
Using the Bangladesh and West Bengal standard, 5 Katha equals approximately 8.2645 Decimal.
How many Decimal are in 10 Katha?
Under the 720-square-foot Katha standard, 10 Katha equals approximately 16.5289 Decimal.
How do I convert Decimal to Katha?
Multiply the Decimal value by 435.6, then divide by the local square feet in one Katha. Under the 720 sq ft standard, divide Decimal by approximately 1.6529.
What is 1 Katha to Decimal in West Bengal?
The West Bengal Registration FAQ states 1 Katha is 720 square feet and approximately 1.65 Decimal. Using 435.6 square feet per Decimal gives 1.6529 Decimal.
What is 1 Katha to Decimal in Bangladesh?
Bangladesh government references give 1 Katha as approximately 1.65 Decimal. Using 720 square feet per Katha and 435.6 square feet per Decimal gives 1.6529.
What is 1 Katha to Decimal in Bihar?
There is no safe single statewide answer because Katha can vary by district and local practice. Check the deed or Bihar Bhumi land record, then enter that Katha size in the custom field.
Are Decimal, Dismil and Shotok the same?
Decimal and Shotok are used for the same 1/100-acre area in Bangladesh, equal to 435.6 square feet. Dismil is commonly used for the same area in parts of India, but follow the wording in the local record.
Why does another calculator show 3.125 or 6.612 Decimal for 1 Katha?
It is using a larger regional Katha size. Katha is not universal, so a converter must show the location or square-foot assumption behind the result.
How many Chatak are in 1 Katha?
In the Bangladesh and West Bengal convention, 1 Katha equals 16 Chatak. Therefore 1 Chatak is 45 square feet under the 720 sq ft standard.
How many Katha are in 1 Bigha?
In the Bangladesh and West Bengal convention used for the breakdown, 1 Bigha equals 20 Katha. Bigha can also vary by location, so check the local record elsewhere.