West Bengal
1 katha = 720 sq ftDocumented for a Kolkata Metropolitan Development Authority land context; verify the parcel record because this is not asserted as one statewide legal factor.
Check source and exceptionsChoose the location first · Free calculator
Katha to Square Feet Calculator
This calculator works out Katha, Cottah or Kattha to square feet. Katha is converted only through the selected location's square-foot factor because the unit has no single India-wide area. Replace the example values with information from your own label, bill, drawing, product sheet or land record. Check the deed, mutation record or state land documentation for the exact Katha definition used in that transaction. The formula and every editable assumption remain visible so the result can be checked before it is used for planning. Keep the values and result together when you compare or share this planning scenario.
Updated 17 July 2026Use for planningFormula and steps shown
Answer before the form
Published factors currently available
Choose the matching location in the calculator. A status label describes the evidence; the record for the exact parcel still takes priority.
Assam
1 katha = 2,880 sq ftState table value; local exceptions may exist.
Check source and exceptionsJharkhand
1 katha = 719.9 sq ftConverted from the published 66.89 m² factor.
Check source and exceptions01
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Every input includes a simple explanation.
Simple wordsFormula shownPrivate inputs
Simple viewUsing editable example assumptions for technical settings.
Private: calculations run in your browser. Saved scenarios, preferred electricity rate and land state stay on this device.
How to use this calculator
- Step 1. Choose the location before converting a regional unit such as Katha or Bigha.
- Step 2. Read the displayed factor and replace it only with a factor verified from the relevant record.
- Step 3. Use the result for understanding, not as proof of ownership, boundary or official area.
What can change the answer
Check these details
01
The same unit name can mean different areas in different places.
02
Official land records take priority over general conversion tables.
03
Standard units have precise conversions. Regional land units may change by state, district, locality or historical settlement.
Understand your result
What this answer means
Read the meaning first, verify the important details, then avoid the most common planning error.
01
What it means
Katha is converted only through the selected location's square-foot factor because the unit has no single India-wide area.
02
What to check next
Check the deed, mutation record or state land documentation for the exact Katha definition used in that transaction.
03
Common mistake
A Katha value copied from another state or district may represent a materially different parcel area.
Regional units can mean different areas by state, district or settlement system. The selected location and factor are part of the answer. Check legal measurements against official local records.
Sources and method
Sources used for this calculator
Metadata and Data Standards: Measurement Conversion TableDepartment of Land Resources / API Setu, Government of IndiaProvides selected state-specific land-record conversion factors and demonstrates why local context is mandatory. Reviewed 2026-07-16.Agricultural Statistics Manual — State-wise local area unitsMinistry of Statistics and Programme Implementation, Government of IndiaCross-reference for selected state units. Rounded published factors are labelled approximate. Reviewed 2026-07-16.NIST Guide to the SI — Area conversion factorsNational Institute of Standards and TechnologyUsed for standard square-foot, square-metre and acre relationships. Reviewed 2026-07-16.West Bengal civil audit — KMDA land measurement noteComptroller and Auditor General of IndiaThe official audit states that one cottah equals 720 square feet in the described KMDA context. GharGanit labels this customary and does not present it as one statewide legal factor. Reviewed 2026-07-19.
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Calculator revision
Version 1.2
Updated 17 July 2026. Changes listed here describe this calculator release; they are not invented historical entries.
- Added category-specific instructions and default-value origin labels.
- Added device-local scenario saving and a direct issue-report workflow.
- Labelled every state and territory as sourced or requiring a local factor.