Building Construction Cost
Full itemised cost — foundation to paint. Economy to premium grade.
Convert between Katha, Bigha, Decimal (Shotok), Square Feet, Acre, Hectare, Square Metre and more. Built for Bangladesh land buyers, sellers, and surveyors.
Katha · Bigha · Decimal · Sqft · Acre · Hectare
🇧🇩 Bangladesh Land Reference
5 Katha = 3,600 sqft = 8.26 Decimal = 0.25 Bigha = 0.0826 Acre
All units are converted through Square Feet as the base unit. 1 Katha = 720 sqft, 1 Bigha = 14,400 sqft, 1 Decimal = 435.6 sqft, 1 Acre = 43,560 sqft, 1 Hectare = 107,639 sqft.
1 Katha = 720 square feet in Bangladesh (standard BD measurement). This may vary slightly by region in older land documents.
1 Bigha = 20 Katha in Bangladesh. So 1 Bigha = 14,400 square feet.
1 Bigha = 33 Decimal (approximately). 1 Decimal = 435.6 square feet.
Decimal (locally called Shotok/শতক) is a unit of land area widely used in Bangladesh. 1 Decimal = 435.6 square feet = 1/100th of an acre.
1 Acre = 100 Decimal = 43,560 square feet.
Katha and Decimal are both common in Bangladesh but measured differently. 1 Katha = 720 sqft. 1 Decimal = 435.6 sqft. They are not equal — 1 Katha ≈ 1.65 Decimal.