DEFINITE AREA

Meter square

1 square = 144 square inches

square metres (m2)

square centimetres (cm2)

square millimetres (mm2)

square kilometres (km2)

square feet (ft2)

square yards (yd2)

square miles (mi2)

1 square yard = 9 square feet

1 are = 100 square metres

1 hectare = 100 ares = 10,000 square metres = 0.01 square kilometres

1 acre = 4,840 square yards = 43,560 square feet.

1 barn = 10−28 square meters.

Some traditional South Asian units that have fixed value:

1 Killa = 1 acre

1 Ghumaon = 1 acre

1 Kanal = 0.125 acre (1 acre = 8 kanal)

1 Decimal = 48.4 square yards

1 Chatak = 180 square feet

1 Bigha = 2529.29 sq.mt.