In the Indian real estate market, "land/flat size" is a relative term until you understand the language of the land. If you are looking to buy a plot on the outskirts of Delhi, you might hear the term Bigha; in the tech corridors of Bangalore, it's Guntha; and in the coastal stretches of Chennai, you'll deal in Grounds.
Navigating land measurement units in India can feel like deciphering an ancient map. While the world has moved toward the metric system, Indian real estate remains a colorful patchwork of regional terminologies.
For a homebuyer or investor in 2026, a conversion error isn't just a mathematical slip—it's a financial risk. This guide simplifies the complex web of Indian land units to ensure your investment is built on solid ground.
Regardless of regional dialects, three standard units of land measurement in India serve as the common denominator for legal documentation and large-scale valuations across India.
The real challenge arises when you step into regional markets. Here is how the regional land units North vs South and East vs West differ.
1. North India: Bigha, Biswa, and Kanal
In states like Haryana, Punjab, and Uttar Pradesh, the Bigha to Acre conversion is the most frequent calculation. However, the Bigha is not a fixed unit.
2. South India: Cent, Ground, and Guntha
The South uses units that are often more precise for smaller plot sizes.
3. West India: Guntha and Vigha
In Maharashtra and Gujarat, the terminology overlaps with both the North and South.
4. East India: Katha, Dhur, and Lecha
In West Bengal, Bihar, and Assam, Katha is the primary unit, though its size varies between states. In Bengal, a Katha is roughly 720 sq. ft., whereas in Bihar, it can be much larger.
| Unit | Equivalent in Square Feet (Approx.) | Region |
|---|---|---|
| 1 Acre | 43,560 sq. ft. | National |
| 1 Hectare | 1,07,639 sq. ft. (2.47 Acres) | National |
| 1 Bigha (Pucca) | 27,225 sq. ft. | North India |
| 1 Guntha | 1,089 sq. ft. | West & South India |
| 1 Ground | 2,400 sq. ft. | Tamil Nadu |
| 1 Cent | 435.6 sq. ft. | South India |
| 1 Katha | 720 - 2,800 sq. ft. | East India |
Before you hire a surveyor, you can perform a basic "check" on how to measure plot area yourself.
The introduction of the Real Estate (Regulation and Development) Act (RERA) has been a gamechanger for homebuyers. RERA has mandated the standard land unit for RERA projects to be Square Meters or Square Feet.
This mandate has significantly reduced the reliance on ambiguous local terms like "Bigha" or "Katha" for formal contracts. When you see a RERA-registered project today, the "Carpet Area" is legally binding figure, ensuring that the homebuyer pays only for the usable area, eliminating the "hidden" variations often found in regional measurement units.
Buying land is often a once-in-a-lifetime legacy move. Whether you are navigating the horizontal sprawl of North India or the high-value plots of the South, understanding these land measurement units is your first line of defense against fraud and overpayment. Always insist on seeing the conversion in Square Feet or Square Meters to maintain absolute clarity.
At Mahindra Lifespaces, transparency is our blueprint. All our plots and residences are measured to the highest RERA standards, ensuring you get exactly what you pay for. Explore our RERA-approved projects today.
Disclaimer – This content is for educational and informational purposes only and does not constitute financial, legal, or professional advice. Please consult with a certified professional or legal counsel before making any decisions based on this information.
1. Why does the size of a "Bigha" change from state to state?
The Bigha is a traditional unit that was established locally before standardized metric systems existed. For example, a Bigha in Himachal Pradesh is much smaller than a Bigha in Bihar. This is why it is critical to always ask for the equivalent in Square Feet to understand the true size of the land.
2. What is the difference between "Pucca" Bigha and "Kachha" Bigha?
This distinction is common in North India (UP, Rajasthan, and Haryana). A Pucca Bigha is the formal, standardized unit often used in government records, while a Kachha Bigha is an informal local unit. Generally, 1 Pucca Bigha = 3 Kachha Bighas.
3. What land measurement unit is used in Tamil Nadu for city plots?
While "Cents" are used for larger land parcels, the most common unit for residential plots in cities like Chennai is the Ground. One Ground is equivalent to 2,400 Square Feet.
4. How do I convert Acres to Hectares?
The conversion is a standard metric calculation: 1 Hectare = 2.47 Acres. If you have an area in Acres, simply divide it by 2.47 to find the Hectare equivalent.
5. What is "Biswa" and where is it used?
A Biswa is a sub-unit of a Bigha used primarily in Upper North India. Typically, 20 Biswas make up 1 Bigha, though the exact square footage of a Biswa will vary depending on whether the Bigha is "Pucca" or "Kachha."
6. Does RERA allow developers to sell property using local units like Bigha or Katha?
No. Under RERA guidelines, developers are legally mandated to quote the area in Square Meters or Square Feet. This ensures that homebuyers across India have a standardized understanding of the space they are purchasing, regardless of regional traditions.
7. How many Cents make up one Acre?
In South Indian states like Kerala and Tamil Nadu, the Cent is a very popular unit. 100 Cents make up exactly 1 Acre. Therefore, 1 Cent is equal to 435.6 Square Feet.
8. What is the standard unit for measuring the "Carpet Area"?
The standard unit for carpet area in Indian apartments is Square Feet. However, for official RERA registration and government filings, developers often provide measurements in Square Meters.
9. How can I verify the land area mentioned in the Sale Deed?
Always cross-check the dimensions (length and width) mentioned in the "Schedule of Property" in your Sale Deed. Multiply these dimensions to get the total area in Square Feet and then use a land conversion table India to verify if it matches the Bigha, Guntha, or Acre figure mentioned by the seller.
10. How many Square Feet are there in one Guntha in Maharashtra?
In Maharashtra, 1 Guntha is exactly 1,089 Square Feet. For quick mental math, you can remember that 40 Gunthas make up 1 Acre.
