Area conversion covers 34 units. Below is a plain-English definition of each one and where you'll actually meet it in daily life.
Square Meter (m²)
A square meter is the area of a square with 1-meter sides, the SI unit of area.
Used for: Floor areas, land parcels, and construction quantities in metric countries.
Square Kilometer (km²)
A square kilometer is the area of a square with 1-kilometer sides, 1,000,000 square meters.
Used for: Country, city, and national-park sizes; lake surface areas; and geographic statistics.
Square Centimeter (cm²)
A square centimeter is the area of a square with 1-centimeter sides.
Used for: Small surface areas such as paper, circuit boards, and skin grafts.
Square Millimeter (mm²)
A square millimeter is the area of a square with 1-millimeter sides.
Used for: Wire cross-sections (mm²) and fine engineering surface areas.
Square Mile (mi²)
A square mile is the area of a square with 1-mile sides, equal to 640 acres.
Used for: US county and city sizes, and large land statistics in imperial countries.
Square Yard (yd²)
A square yard is the area of a square with 1-yard sides, about 0.836 square meters.
Used for: Carpet and fabric pricing in the US and UK.
Square Foot (ft²)
A square foot is the area of a square with 1-foot sides.
Used for: Real-estate listings, flooring, and HVAC sizing in the United States and Canada.
Square Inch (in²)
A square inch is the area of a square with 1-inch sides.
Used for: Screen area comparisons, small part specs, and PSI pressure units.
Acre (ac)
An acre is exactly 43,560 square feet or 4,046.8564224 square meters.
Used for: Farmland, suburban lot sizes, and large real-estate parcels in imperial countries.
Hectare (ha)
A hectare is exactly 10,000 square meters, about 2.471 acres.
Used for: Agricultural land, parks, and property measurement in most of the world.
Cent (cent)
A cent is one-hundredth of an acre, exactly 40.468564224 square meters.
Used for: Residential land parcels in South India, Sri Lanka, and other former colonial regions.
Guntha (guntha)
A guntha is a traditional Indian land unit equal to 1,089 square feet (101.171 square meters).
Used for: Agricultural and residential land sales in Maharashtra, Gujarat, and Karnataka.
Ground (ground)
A ground is a South Indian land unit equal to 2,400 square feet (222.97 square meters).
Used for: Real-estate listings in Tamil Nadu and Karnataka, often for house plots.
Kanal (kanal)
A kanal is a Pakistani and North Indian land unit equal to 5,445 square feet (505.86 square meters).
Used for: Property listings in Pakistan and Jammu & Kashmir; 1 kanal equals 20 marlas.
Marla (marla)
A marla is a land unit equal to 272.25 square feet (25.29 square meters), 1/20 of a kanal.
Used for: Residential plot sizes in Pakistan and North India.
Bigha (Standard) (bigha)
The standard bigha is a traditional South Asian land unit of about 27,225 square feet (2,529 square meters).
Used for: Agricultural land measurement across India, Nepal, and Bangladesh (size varies by region).
Bigha (Bengal) (bigha (Bengal))
The Bengal bigha equals 14,400 square feet (1,337.8 square meters).
Used for: Land measurement in West Bengal, Bangladesh, and Assam.
Katha (Bengal) (katha (Bengal))
A Bengal katha is 720 square feet (66.89 square meters), 1/20 of a Bengal bigha.
Used for: House-plot and agricultural land measurement in West Bengal and Bangladesh.
Katha (Bihar) (katha (Bihar))
A Bihar katha is 1,361.25 square feet (126.46 square meters), larger than the Bengal katha.
Used for: Land records and property sales in Bihar and Jharkhand.
Biswa (biswa)
A biswa is a North Indian land unit equal to 1,361.25 square feet (126.46 square meters), 1/20 of a bigha in many states.
Used for: Agricultural and residential land measurement in Uttar Pradesh and Bihar.
Gaj (gaj)
A square gaj equals one square yard, exactly 0.83612736 square meters.
Used for: Indian real-estate listings, where house and plot sizes are quoted in square gaj.
Ankanam (ankanam)
An ankanam is a South Indian land unit equal to 72 square feet (6.689 square meters).
Used for: Residential plot sales in Andhra Pradesh and Telangana.
Rood (rood)
A rood is one quarter of an acre, exactly 10,890 square feet (1,011.7 square meters).
Used for: Historic agricultural land records in the UK; still found in older deeds.
Dhur (Bihar) (dhur)
A dhur is a small land unit used in Bihar and Nepal, about 68 square feet (6.32 square meters) here.
Used for: Small agricultural and residential plots in Bihar and Nepal.
Chatak (Bengal) (chatak)
A chatak is a Bengali land unit equal to 180 square feet (16.72 square meters), 1/80 of a bigha.
Used for: Residential land measurement in West Bengal and Bangladesh.
Lessa (Assam) (lessa)
A lessa is a land unit used in Assam, equal to 144 square feet (13.378 square meters).
Used for: Tea-garden and residential land measurement in Assam.
Killa (Punjab) (killa)
A killa (Punjabi acre) equals one acre, 43,560 square feet or 4,046.86 square meters.
Used for: Land measurement in Punjab (India and Pakistan); a killa is 8 kanals.
Pura (Assam) (pura)
A pura is an Assamese land unit equal to 57,600 square feet (5,351.2 square meters).
Used for: Larger rural land holdings in Assam.
Tsubo (Japan) (tsubo)
A tsubo is a Japanese area unit equal to about 3.306 square meters (one 6-foot ken squared).
Used for: Japanese real-estate and office-space measurement; 100 tsubo equal one bu.
Mu (China) (mu)
A mu is a Chinese area unit equal to 666.67 square meters (about 0.165 acre).
Used for: Agricultural and rural land measurement across China; 15 mu equal one hectare.
Rai (Thailand) (rai)
A rai is a Thai area unit equal to 1,600 square meters (0.395 acre).
Used for: Thai land measurement; four ngan make one rai.
Ngan (Thailand) (ngan)
A ngan is a Thai area unit equal to 400 square meters (0.1 acre).
Used for: Thai land measurement; four ngan make one rai, and each ngan is 100 square wah.
Dunam (Metric) (dunam)
A dunam (metric) is exactly 1,000 square meters (0.1 hectare).
Used for: Land measurement in Israel, Palestine, Turkey, and parts of the Balkans.
Feddan (Egypt) (feddan)
A feddan is an Egyptian area unit equal to about 4,200.83 square meters (1.038 acres).
Used for: Agricultural land measurement in Egypt and Sudan; one feddan is 24 kirats.