Converter category
Area Converter
Convert metric, Imperial, survey, scientific, and clearly defined regional land-area units.
Universal Area Converter
Regional land units vary by location. This converter uses the definition shown in each unit name; Bangladesh standards are used for bigha and katha.
About area conversions
Area conversions are used in real estate, construction, agriculture, interior design, and land management. Our area converter covers metric units such as square millimeters, square centimeters, square meters, hectares, and square kilometers, plus Imperial units including square inches, square feet, square yards, acres, and square miles. It also includes regional land units used in South Asia, such as cents, marlas, bigha, and katha, with clearly labeled definitions. Whether you are buying property, planning a garden, or estimating flooring, you can convert area units accurately and instantly.
Available units
Popular area conversions (23 total)
Unit definitions
Square Millimeter (mm²)
A square millimeter is one millionth of a square meter, about the size of a grain of sand.
Origin: Metric area unit derived from the millimeter.
Current use: Electronics, Medical imaging, Engineering tolerances
Square Centimeter (cm²)
A square centimeter is one ten-thousandth of a square meter, about the size of a postage stamp.
Origin: Metric area unit derived from the centimeter.
Current use: Medical patches, Paper sizing, Laboratory work
Square Meter (m²)
A square meter is the SI unit of area, equal to 10.76 square feet.
Origin: Derived from the meter, SI base unit of length.
Current use: Real estate, Construction, Room sizing
Square Kilometer (km²)
A square kilometer is one million square meters, about 247 acres.
Origin: Metric area unit for large geographic areas.
Current use: City areas, Land measurement, Geographic mapping
Square Inch (in²)
A square inch is the area of a square with 1-inch sides, about 6.45 cm².
Origin: Imperial area unit derived from the inch.
Current use: Screen sizes, Paper sizes, Construction
Square Foot (ft²)
A square foot is the area of a square with 1-foot sides, about 929 cm².
Origin: Imperial area unit widely used in US real estate.
Current use: Real estate (US), HVAC sizing, Flooring
Square Yard (yd²)
A square yard is 9 square feet or 0.836 m². Commonly used for carpet and fabric.
Origin: Imperial area unit from the yard.
Current use: Carpeting, Landscaping, Fabric ordering
Square Mile (mi²)
A square mile is 640 acres or 2.59 km². Used for large land areas.
Origin: Imperial area unit for counties and large regions.
Current use: City planning, Geographic measurement, Census areas
Acre (ac)
An acre is 43,560 square feet or about 0.405 hectares. Traditional land measure.
Origin: Originally the area a yoke of oxen could plow in one day.
Current use: Real estate (rural), Agriculture, Land management
Hectare (ha)
A hectare is 10,000 square meters or about 2.47 acres. The standard metric land unit.
Origin: From Greek hecto (hundred) and are (100 m²).
Current use: Agriculture, Forestry, Land planning
Are (a)
An are is 100 square meters or about 108 square feet.
Origin: Latin word for area. Base unit for hectare.
Current use: Land surveying, Small plots, Garden sizing
Cent (cent)
A cent is approximately 40.47 square meters, equivalent to 1 decimal.
Origin: Used in South India for land measurement.
Current use: Land measurement, Property registration, Real estate
Decimal (dec)
A decimal is approximately 40.47 square meters, used in South Asia for land measurement.
Origin: Common in India, Nepal, and Bangladesh for small land areas.
Current use: Land measurement, Property transactions, Agricultural plots
Guntha (guntha)
A guntha is approximately 101.17 square meters or 1089 square feet, equal to 1/40 acre.
Origin: Used in Maharashtra, Karnataka, and other parts of India.
Current use: Agricultural land, Land records, Property transactions
Ground (ground)
A ground is approximately 222.97 square meters or 2400 square feet.
Origin: Used in Tamil Nadu, India for real estate and property measurement.
Current use: Real estate (Tamil Nadu), Property registration, Land measurement
Kanal (kanal)
A kanal is approximately 505.86 square meters or 5445 square feet, equal to 1/8 acre.
Origin: Used in Pakistan and northern India for land measurement.
Current use: Real estate (Pakistan), Residential plots, Land records
Marla (marla)
A marla is approximately 25.29 square meters or 272.25 square feet, equal to 1/160 acre.
Origin: Traditional unit used in Pakistan and northern India. 1 kanal = 20 marla.
Current use: Residential plots, Property registration, Land measurement
Bigha (Bangladesh) (bigha)
A bigha in Bangladesh is approximately 1338 square meters or 0.33 acres.
Origin: Traditional land measurement unit varying by region. Bangladesh standard is about 20 katha.
Current use: Agricultural land, Land records, Rural property
Katha (Bangladesh) (katha)
A katha in Bangladesh is approximately 66.9 square meters or 720 square feet.
Origin: Traditional land measurement unit in Bangladesh and parts of India.
Current use: Land registration (Bangladesh), Property deeds, Agricultural land
Shotangsho (shotangsho)
A shotangsho is approximately 40.47 square meters or 435.6 square feet, equivalent to 1 cent.
Origin: Used in Bangladesh and parts of India for small land parcels.
Current use: Residential plots, Land subdivision, Property registration
Rood (rood)
A rood is 1/4 acre or about 1,012 m². Historical English land unit.
Origin: From Old English rod, meaning a rod-shaped area.
Current use: Historical land, UK property, Agriculture
Survey Township (twp)
A township is 36 square miles or about 93 km². US Public Land Survey.
Origin: US survey system established in 1785.
Current use: US land surveys, Property mapping, Government land
Barn (b)
A barn is an extremely small area (10⁻²⁸ m²), used in nuclear physics.
Origin: Coined during WWII for measuring nuclear cross-sections.
Current use: Nuclear physics, Particle physics, Scientific research
Common uses for area conversions
Area conversions are used in real estate listings, construction estimates, flooring and carpeting, land surveys, agriculture, gardening, and interior design.
Frequently asked questions about area
How many square feet are in 1 square meter?+
1 square meter equals about 10.764 square feet.
What is the difference between an acre and a hectare?+
An acre is about 4,047 square meters. A hectare is 10,000 square meters, so a hectare is about 2.47 acres.
Which area units does this converter support?+
It supports metric, Imperial, survey, scientific, and clearly defined regional land units — over 20 in total.