Indian Land Measurement Units Guide: Converting Gunthas, Cents, Ankanams, Bighas & Square Yards
A comprehensive regional reference for converting local Indian land survey units into square feet, square meters, and acres.
Real estate transactions in India are inherently complex, and one of the greatest sources of confusion for property buyers, agricultural investors, and families is the staggering diversity of regional land measurement units. While statutory government surveys and registration departments increasingly standardize on metric hectares and square meters, local property registrations, land deeds, and municipal layouts continue to trade in historical regional terminology.
A buyer in Hyderabad calculates plots in Square Yards and agricultural acreage in Guntas, while a family in Vijayawada or Visakhapatnam measures residential house sites in Cents and Ankanams. Moving to North India introduces Bighas, Biswas, and Kanals—where the numerical value of a single Bigha can vary by more than 300% from one state to another.
1. South Indian Survey Units: AP, Telangana, Karnataka & Tamil Nadu
Across Andhra Pradesh, Telangana, and neighboring southern states, municipal corporations (such as GHMC, VMRDA, and APCRDA) and rural revenue departments rely on distinct historical units:
| Measurement Unit | Primary Geographic Region | Square Feet (sq ft) | Square Yards (sq yd / Gajam) | Equivalent in Acres |
|---|---|---|---|---|
| Gunta (Guntha) | Telangana, Karnataka, Maharashtra | 1,089 sq ft | 121 sq yd | 1/40th of an Acre (40 Guntas = 1 Acre) |
| Cent | Andhra Pradesh, Tamil Nadu, Kerala | 435.6 sq ft | 48.4 sq yd | 1/100th of an Acre (100 Cents = 1 Acre) |
| Ankanam | Rayalaseema (AP) & Nellore District | 72 sq ft | 8 sq yd | 1 Cent = 6.05 Ankanams |
| Ground | Tamil Nadu (Urban Chennai layouts) | 2,400 sq ft | 266.67 sq yd | 1 Acre = 18.15 Grounds |
| Square Yard (Gajam) | Pan-India Urban Residential Layouts | 9 sq ft | 1 sq yd | 1 Acre = 4,840 sq yd |
2. North & Central Indian Units: Bighas, Biswas & Kanals
In northern and central states (Uttar Pradesh, Punjab, Haryana, Rajasthan, Bihar, Madhya Pradesh), land is measured using historical customary units. A crucial trap for buyers is that a Bigha is not a standardized national unit; its exact measurement depends entirely on the state survey manual:
- Pucca Bigha (Standard in UP, Bihar, parts of Rajasthan): Typically equals 27,225 sq ft (approximately 3,025 sq yd or 0.625 Acre). One Pucca Bigha is subdivided into 20 Biswas.
- Kaccha Bigha (Used informally by local landlords): Often equals one-third of a Pucca Bigha, measuring approximately 9,075 sq ft (1,008 sq yd).
- Punjab & Haryana (Kanal & Marla): 1 Acre is divided into 8 Kanals. 1 Kanal equals 20 Marlas (5,445 sq ft per Kanal; 272.25 sq ft per Marla).
3. The Universal Standard Conversion Formula
1 Acre = 43,560 Square Feet = 4,840 Square Yards = 4,046.86 Square Meters
1 Hectare = 10,000 Square Meters = 2.471 Acres = 107,639 Square Feet
To convert any unit to Square Feet:
Area (sq ft) = Units × Exact Conversion Factor
To convert Square Feet to Gajam (sq yd):
Square Yards = Area (sq ft) ÷ 9
4. Concrete Worked Example: Evaluating a 200 Sq Yard Residential Plot
Plot Parameters:
A buyer is purchasing a standard residential plot measuring 200 Square Yards (Gajam) in a VMRDA/HMDA approved layout.
- Square Feet: 200 sq yd × 9 = 1,800 Square Feet
- Cents (Andhra Pradesh): 1,800 sq ft ÷ 435.6 = 4.132 Cents
- Guntas (Telangana): 1,800 sq ft ÷ 1,089 = 1.653 Guntas
- Ankanams (Rayalaseema): 1,800 sq ft ÷ 72 = 25.0 Ankanams
- Square Meters (Metric): 1,800 ÷ 10.7639 = 167.23 Square Meters
Practical Tip: When verifying plot boundaries on ground, a 200 sq yd plot commonly measures 30 feet of road frontage by 60 feet of plot depth (30 ft × 60 ft = 1,800 sq ft = 200 sq yd).
5. Important Legal Precautions for Land Buyers
- Verify the Registered Sale Deed (SRO): Never finalize a deal based solely on verbal unit quotes. Always verify the measurement unit recorded in the parent link documents and municipal survey records at the Sub-Registrar Office.
- Confirm Conversion Approvals: When buying agricultural land subdivided into residential plots, ensure an official NALA (Non-Agricultural Land Assessment) conversion order has been issued by the competent revenue authority.
- Cross-Check with Licensed Surveyors: Hire a licensed surveyor to measure boundaries using Total Station or DGPS equipment before executing the registered sale deed.
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Frequently Asked Questions
How many Square Feet are in one Cent of land?
One Cent equals exactly 435.6 Square Feet (or 48.4 Square Yards). Since 1 Acre contains 43,560 Square Feet, there are exactly 100 Cents in one Acre.
How many Square Yards are in one Gunta?
One Gunta (widely used in Telangana, Karnataka, and Maharashtra) equals exactly 121 Square Yards (or 1,089 Square Feet). There are 40 Guntas in one Acre.
What is the difference between a Pucca Bigha and a Kaccha Bigha?
A Pucca Bigha is a formal statutory survey unit (typically 27,225 sq ft or 3,025 sq yd in Uttar Pradesh). A Kaccha Bigha is an informal customary measure frequently used in rural tenancy agreements, usually equal to one-third of a Pucca Bigha (approx 9,075 sq ft).
Why is land measured in Square Yards in urban layouts but Acres in agricultural land?
Urban residential and commercial plots are small and compact, making Square Yards (or Square Feet) practical for municipal building rules and floor area ratio (FAR) calculations. Large agricultural farmlands are surveyed in Guntas, Cents, Acres, and Hectares for crop yield and revenue taxation purposes.