Square Feet to Kattha Calculator
Convert square feet into kattha instantly using region-specific conversion standards. Because kattha varies by location, this calculator lets you choose the correct local definition before calculating.
Calculate Your Land Area
Enter your area in square feet, select the kattha standard used in your region, and click calculate for an accurate result.
Your conversion result, regional factor, and supporting area equivalents will appear here.
Expert Guide to Using a Square Feet to Kattha Calculator
A square feet to kattha calculator is one of the most useful tools for anyone dealing with land measurements in South Asia, especially in regions where traditional units are still used in property discussions, land records, plot advertisements, and local sale agreements. The challenge is simple: square feet is a standardized modern measurement, but kattha is a traditional unit whose size changes by region. If you convert without selecting the right local standard, you can end up with a serious mismatch in area, valuation, and expectations.
This is why a high-quality calculator should do more than divide one number by another. It should make the regional variation visible, explain the logic, and help users compare land area in a practical way. If you are a property buyer, seller, broker, survey assistant, planner, architect, or landowner, understanding how square feet translates into kattha can prevent confusion and support better decisions.
What is square feet?
Square feet is a uniform unit of area used widely in real estate, architecture, construction, and planning. It represents the area of a square with sides of one foot each. Because it is standardized, square feet does not depend on local custom. A plot of 1,000 square feet is exactly the same area wherever it is measured. This consistency is one reason why many formal plans, urban building documents, and real estate portals prefer square feet.
Authoritative measurement guidance for standardized unit conversion can be found from the U.S. National Institute of Standards and Technology at nist.gov. For broader rules on measurement expression and unit usage, NIST also publishes a detailed reference at nist.gov.
What is kattha?
Kattha is a traditional land area unit used in Nepal and parts of India, including Bihar, Jharkhand, Assam, and West Bengal. However, kattha is not fixed universally. In one place, a kattha may represent 720 square feet. In another, it may represent 1,361.25 square feet, 2,880 square feet, or 3,645 square feet. That variation is the most important fact to remember when converting.
In practical terms, this means the phrase “the land is 5 kattha” is incomplete unless the regional standard is known. A buyer hearing that statement in one city may imagine a very different parcel size than a buyer hearing it elsewhere. That is exactly why a reliable square feet to kattha calculator needs a regional dropdown rather than a single hardcoded formula.
How the square feet to kattha formula works
The formula is straightforward:
Kattha = Square Feet / Regional Square Feet per Kattha
For example, if your plot is 3,600 square feet and your local standard is 720 square feet per kattha, then:
3,600 / 720 = 5 kattha
But if the local standard is 3,645 square feet per kattha, the same 3,600 square feet becomes:
3,600 / 3,645 = 0.9877 kattha approximately
This example shows why the selected conversion factor changes the result dramatically. The land did not change, but the traditional unit definition did.
Common regional conversion standards
The following table summarizes commonly used reference values for kattha. These values are widely cited in property practice, but local usage can still vary by district, town, and land record tradition. Always cross-check with local authorities or survey documents before using conversion figures in a legal context.
| Region or Common Usage | 1 Kattha in Square Feet | 1 Kattha in Square Meters | Approximate Kattha per Acre |
|---|---|---|---|
| Nepal Terai | 3,645 sq ft | 338.63 sq m | 11.95 kattha |
| Bihar / Jharkhand common practice | 1,361.25 sq ft | 126.46 sq m | 32.00 kattha |
| West Bengal common practice | 720 sq ft | 66.89 sq m | 60.50 kattha |
| Assam common practice | 2,880 sq ft | 267.56 sq m | 15.13 kattha |
Why conversion accuracy matters in real estate
Even a small misunderstanding in land area can affect the price of a property, how a parcel is advertised, whether a building plan seems feasible, and how buyers compare one plot to another. When land is quoted in kattha but priced per square foot, buyers often need immediate conversion. When a registry document uses metric area but a broker uses kattha, cross-checking becomes essential. Accuracy matters because:
- Property value is often tied directly to area.
- Construction feasibility depends on exact plot dimensions.
- Loan applications and legal papers may require consistent units.
- Inheritance or partition discussions often involve traditional measurements.
- Marketing claims can be misunderstood if the local kattha standard is not stated.
Sample conversions for common plot sizes
The next comparison table shows how the same square-foot area converts into different kattha totals depending on the region. This is often the fastest way to understand why local standard selection is so important.
| Plot Size | Nepal Terai 3,645 sq ft/kattha |
Bihar/Jharkhand 1,361.25 sq ft/kattha |
West Bengal 720 sq ft/kattha |
Assam 2,880 sq ft/kattha |
|---|---|---|---|---|
| 1,000 sq ft | 0.2743 kattha | 0.7346 kattha | 1.3889 kattha | 0.3472 kattha |
| 2,500 sq ft | 0.6859 kattha | 1.8365 kattha | 3.4722 kattha | 0.8681 kattha |
| 5,000 sq ft | 1.3717 kattha | 3.6731 kattha | 6.9444 kattha | 1.7361 kattha |
| 10,000 sq ft | 2.7435 kattha | 7.3462 kattha | 13.8889 kattha | 3.4722 kattha |
How to use this calculator correctly
- Find the exact land area in square feet from your sale deed, plan, survey sheet, or builder quotation.
- Select the kattha standard that matches your district or local market practice.
- Choose how many decimal places you want in the result.
- Click the calculate button to see kattha, square meters, acres, and hectares.
- If you are using the figure for a transaction, compare the result with local records and official land documents.
Best use cases for a square feet to kattha calculator
This calculator is especially helpful in mixed-unit environments where different stakeholders speak different measurement languages. A municipal planner may review square meters. A broker may speak in kattha. A buyer might understand square feet better. A digital calculator helps translate across those perspectives instantly.
- Buying land: compare listed kattha values with exact measured area.
- Selling property: present area in both modern and traditional units.
- Construction planning: understand whether your plot meets minimum requirements.
- Legal review: cross-check measurements across deeds and informal descriptions.
- Investment analysis: normalize area across multiple listings in different regions.
Important limitations and local variations
No online calculator can replace district-specific legal records. Traditional units evolve over time, and local usage may differ from textbook or market averages. In some areas, even adjacent regions may not use the same kattha standard. Therefore, use the calculator for estimation, planning, and comparison, but verify with official documents for registration, boundary disputes, tax matters, and title transfers.
If your work involves land records, consult local survey or mapping agencies where available. For example, Nepal’s land and survey administration information can be explored through government resources such as dos.gov.np. These official sources are useful for understanding survey practice and record systems, even when local historical units still require contextual interpretation.
Square feet versus kattha: which unit should you rely on?
For legal precision and cross-regional comparison, square feet is usually safer because it is standardized. For local conversations, market familiarity, and traditional land references, kattha may still be more practical. The smartest approach is to keep both values available. That is exactly what this calculator does: it lets you start with a standardized input and then see the kattha equivalent for the region you choose.
If you are evaluating price, always ask one more question: is the seller quoting the rate per square foot, per kattha, or for the whole plot? A misunderstanding here can lead to a major price error. The same number of kattha can represent dramatically different land areas in different states. That is why serious buyers and sellers routinely convert everything back to square feet or square meters before final negotiation.
Tips for buyers, brokers, and landowners
- Always mention the region when stating kattha.
- Keep one standardized unit in all written communication.
- Use exact figures from approved survey plans where possible.
- Round carefully and disclose rounding if discussing price.
- For legal decisions, rely on official records over verbal descriptions.
Final takeaway
A square feet to kattha calculator is valuable because it bridges standardized measurement and traditional land terminology. The key insight is simple but crucial: square feet is fixed, kattha is regional. Once you choose the correct local conversion factor, the math becomes easy and consistent. Whether you are checking a listing, planning a purchase, estimating land value, or comparing parcels across locations, a region-aware calculator helps you work faster and avoid costly confusion.
Practical reminder: Use this calculator for planning and comparison, but confirm your local kattha standard with official records, survey documents, or the relevant land authority before making legal or financial commitments.