calc / real estate / AREA

Land Area Converter

Sq ft, gaj, guntha, cent, bigha, kanal — every state measures land in its own tongue. Enter a value once and read it in all of them, via the one unit they all agree on: the square metre.

Convert an area 13 units

Converted

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In sq metres

—

the common yardstick

In acres

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1 acre = 43,560 sq ft

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§1How the conversion works

Every unit here is a fixed number of square metres, so conversion is two steps — into square metres, out again:

area in sq m = value × factor(from unit) result = area in sq m ÷ factor(to unit) Key equivalences: 1 acre = 43,560 sq ft = 4,840 sq yd = 40 gunthas = 100 cents 1 hectare = 10,000 sq m = 2.471 acres 1 sq yard = 9 sq ft (the "gaj" of North Indian listings)

1,000 sq ft → gaj

sq m = 1,000 × 0.092903 = 92.903 gaj = 92.903 ÷ 0.836127 = 111.11 gaj

§2The gotchas

Bigha is not a standard unit — at all

A bigha ranges from roughly 1,500 to 6,800 sq metres depending on the state: a UP/Bihar pucca bigha (~2,529 sq m ≈ 27,225 sq ft), a Gujarat bigha (~1,619 sq m ≈ 17,424 sq ft) and a Bengal bigha are all different animals, and kachha bighas differ again. This converter carries the UP pucca and Gujarat definitions separately. Before money moves, confirm which bigha the sale deed uses — never the broker's word.

Gaj is just the square yard

North Indian property listings price plots in gaj — "₹1.2 lakh per gaj" in Delhi or Gurgaon. A gaj is simply a square yard: 9 sq ft. A "100 gaj plot" is 900 sq ft, not the roomy number the word makes it sound like.

Carpet vs built-up vs super built-up

For apartments, the unit is only half the story — what's being measured matters more. RERA requires agreements to quote carpet area (the floor you can walk on). Builders advertise super built-up, which loads in walls, lobbies and amenities and typically runs 25–40% above carpet. Convert the same basis on both sides before comparing per-sq-ft prices.

§3Related

Sizing up a plot? Estimate the government take on the stamp duty calculator, and what the land could earn on the rental yield calculator.