Bangladesh has a total area of 147,630 sq. km., which is a little more than three times the area of Denmark. Bangladesh borders with India to the west, north and east, and shares a southeastern border with Myanmar. To the south lies the Bay of Bengal.
Alluvial plains bounded to the north by the sub montane regions of the Himalayas characterize the topography. The alluvial plain covers 90% of the country and never rises more than 10 meters above sea level. On average, Bangladesh is affected 16 times a decade by cyclones, which form in the Bay of Bengal during the monsoon season.
The areas in the northeast and eastern fringes adjacent to Assam, Tripura and Myanmar are broken by the forested hills of Sylhet and Chittagong. The great Himalayan Rivers, the Ganges and the Brahmaputra divide the country into four major regions: northwest, southwest, central and eastern.