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 1/100 of an acre, about 40.5 m². Used in Indian land measurement.
Origin: Used in South Asian land measurement systems.
Current use: Indian real estate, Agricultural land, Regional land records
Decimal (decimal)
A decimal equals 100 square meters or 1 cent. Used in Bangladesh and India.
Origin: Regional land measurement unit in South Asia.
Current use: Bangladeshi land, Regional records, Agriculture
Guntha (guntha)
A guntha is 1/40 of an acre or about 101 m². Used in Indian states.
Origin: Traditional Indian land measurement unit.
Current use: Indian real estate, Maharashtra region, Agricultural land
Ground (2,400 ft²) (ground)
A ground is 2,400 square feet or about 223 m². Used in Indian property.
Origin: Traditional Indian land unit, especially in South India.
Current use: South Indian property, Real estate, Land records
Kanal (5,445 ft²) (kanal)
A kanal is one-eighth of an acre or about 506 m². Used in Pakistan and India.
Origin: Popular land unit in Punjab region.
Current use: Punjab region, Agricultural land, Real estate
Marla (272.25 ft²) (marla)
A marla is about 25 m². Used widely in Pakistan and India.
Origin: Traditional land unit in South Asia.
Current use: Pakistani property, Indian property, Land records
Bigha (Bangladesh) (bigha)
A bigha in Bangladesh is about 1,338 m² or 0.33 acres.
Origin: Traditional land unit varying by region in South Asia.
Current use: Bangladeshi agriculture, Land transactions, Regional records
Katha (Bangladesh) (katha)
A katha in Bangladesh is about 67 m² or 720 ft².
Origin: Traditional Bengali land measurement unit.
Current use: Bangladeshi property, Rural land, Local transactions
Shotangsho (shotangsho)
A shotangsho equals 100 square meters or 1 decimal. Used in Bangladesh.
Origin: Bangladeshi land measurement unit.
Current use: Bangladeshi real estate, Land surveys, Agricultural land
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.