Area Unit Converter
Convert between Indian land units and metric/imperial area — marla, gaj, kanal, killa, murabba, decimal, cent and guntha, plus square feet, square metre and hectare. Pick any two units; it runs entirely in your browser.
Popular area conversions
Land units that vary by state (bigha, biswa, katha, dhur)
Some Indian land units do not have one fixed size — a bigha, biswa, katha or dhur means different areas in different states. These converters carry a per-state value table and a region selector so you get the right answer for your state, not a guessed national average:
Full reference: Indian land units by state — every bigha, biswa, katha & dhur size in sq ft & m² →
Bangladesh land units — katha, bigha, chatak, shotangsho & the kani system, fixed nationally →
Convert between two state-variable units (bigha ↔ biswa, katha ↔ dhur)
When both units vary by state, the conversion is only defined within a state where both are recorded. In most systems the ratio is fixed (1 bigha = 20 biswa, 1 katha = 20 dhur) even though the absolute sizes change — but 1 bigha = 20 katha in most states and only 5 in Assam. These converters show the value for each state where both units are defined:
All area conversions
Every area conversion on the site — pick any pair. The state-variable land units (bigha, biswa, katha, dhur) open with a per-state value table.
Show all 366 area conversions
Units in this converter
| Unit | What it is |
|---|---|
| Gaj (gaj) | A gaj is a square yard (9 sq ft) — the everyday unit for plots and houses across North India. |
| Marla (marla) | A marla is 272.25 sq ft (30.25 gaj) — exactly 1/160 acre, and the size used in official land records in Indian Punjab/Haryana and in Pakistan. Many Pakistani housing societies sell a smaller 225 sq ft marla, so check which one your papers use. |
| Kanal (kanal) | A kanal equals 20 marla (5,445 sq ft). 8 kanal make 1 killa (acre). Common in Punjab, Haryana, J&K, HP and across Pakistan — though societies using the smaller 225 sq ft marla count a kanal as 4,500 sq ft. |
| Killa (killa) | A killa is the local name for an acre (4,840 gaj) in Punjab and Haryana — 8 kanal or 160 marla. |
| Murabba (murabba) | A murabba ("square") is 25 killa (25 acres) — the large land block used in Punjab/Haryana revenue records. |
| Decimal (decimal) | A decimal is 1/100 of an acre (48.4 gaj) — widely used in eastern India (Bihar, Bengal, Odisha, Jharkhand). |
| Cent (cent) | A cent is 1/100 of an acre — identical to a decimal — and is the common small land unit in South India. |
| Guntha (guntha) | A guntha is 1/40 of an acre (121 gaj) — the standard unit in Maharashtra, Karnataka and Andhra/Telangana. |
| Acre (ac) | An acre is 4,840 square yards (43,560 sq ft) — the standard imperial land unit. |
| Rood (rood) | A rood is a quarter of an acre — 1,210 square yards (10,890 sq ft), or 40 square perches. It is the middle figure in the old "acres, roods and perches" way of writing a land area, so 3 roods means three-quarters of an acre. |
| Square Perch (perch²) | A square perch is 1/160 of an acre — 30.25 square yards (272.25 sq ft). Also called a square rod or square pole, it is the smallest of the three units in "acres, roods and perches", and 40 of them make one rood. |
| Hectare (ha) | A hectare is 10,000 square metres (about 2.471 acres) — the metric land unit. |
| Square Foot (ft²) | A square foot is the area of a 1 ft × 1 ft square — the common unit for built-up area. |
| Square Yard (yd²) | A square yard (9 sq ft) is identical to a gaj — used for plots and carpet area. |
| Square Metre (m²) | The square metre is the SI unit of area — a 1 m × 1 m square. |
| Square Centimetre (cm²) | A square centimetre is a 1 cm × 1 cm square — 1/10,000 of a square metre. |
| Square Millimetre (mm²) | A square millimetre is a 1 mm × 1 mm square — the smallest common metric area unit. |
| Square Inch (in²) | A square inch is a 1 in × 1 in square — 6.4516 cm². |
| Square Kilometre (km²) | A square kilometre is a 1 km × 1 km square — 100 hectares. |
| Are (are) | An are is 100 square metres (a 10 m × 10 m square) — the metric unit the hectare (100 ares) is built from, and the historic basis of the "cent"/"decimal". |
| Decare (daa) | A decare is 1,000 square metres (10 ares, one-tenth of a hectare) — a metric land unit used in Norway, Turkey and the Balkans, and close to the Middle-Eastern dunam. |
| Square Mile (mi²) | A square mile is a 1 mi × 1 mi square — 640 acres (2.589988 km²), the large imperial/US unit for districts, farms and map areas. |
| Square Karam (karam²) | A square karam (sarsahi) is a Punjab/Haryana land unit — the square of a 5.5 ft karam, so exactly 30.25 sq ft (2.81 m²). 9 sarsahi = 1 marla. |
| Ground (ground) | A ground is a Tamil Nadu / South-India land unit equal to 2,400 sq ft (222.97 m²) — common in Chennai property listings. |
| Lessa (lessa) | A lessa (lecha) is an Assam land unit of 144 sq ft (12 ft × 12 ft, 13.38 m²): 20 lessa = 1 katha and 100 lessa = 1 bigha in Assam. Multi-source verified for Assam; the unit differs in other states. |
| Chatak (chatak) | A chatak is a Bengal-region land unit (West Bengal, Bangladesh) equal to 45 sq ft (4.18 m²) — a fixed subdivision of the rural Bengal katha (1 katha = 16 chatak = 720 sq ft). |
| Pura (pura) | A pura (পূৰা) is an Assam land unit equal to 4 Assam bigha = 57,600 sq ft (5,351.215 m²). Multi-source verified from Wikipedia, land-record references and real property listings for Assam. |
| Bigha (bigha) varies by state | A bigha is a traditional South Asian land unit whose size is not standardised in India — it ranges from roughly 1,500 to 2,530 m² depending on the state and on whether a "pucca" (large) or "kachha" (small) bigha is meant. In Bangladesh it is fixed at 14,400 sq ft (20 katha). |
| Biswa (biswa) varies by state | A biswa is 1/20 of a bigha, so like the bigha its real size depends on the state. 1 biswa = 20 biswansi. |
| Katha (katha) varies by state | A katha (also spelt kattha) is the common land unit across eastern India and Bangladesh. In most states 1 bigha = 20 katha, but in Assam 1 bigha = 5 katha, so the katha’s size varies widely by state. Bangladesh is the exception that fixes it: there a katha is 720 sq ft everywhere. |
| Dhur (dhur) varies by state | A dhur is a small land unit used mainly in Bihar and eastern Uttar Pradesh, where 1 katha = 20 dhur and 1 dhur = 20 dhurki. |
Fixed units (square feet, square metre, hectare, acre, marla, gaj, kanal, killa) use exact or widely-accepted standard values. The state-variable units (bigha, biswa, katha, dhur) use per-state values — open one of the converters above and pick your state. For legal transactions always confirm against your local revenue records (patwari / tehsil).