Myanmar is 4.7 times larger than Bangladesh.
Area: 143,998 km2 World Factbook
Population: 166,280,712 (July 2014) World Factbook
Bangladesh; officially the People's Republic of Bangladesh, is a country in South Asia. It is bordered by India to its west, north and east; Burma to its southeast and separated from Nepal and Bhutan by the Chicken’s Neck corridor. To its south, it faces the Bay of Bengal. Wikipedia
Area: 676,578 km2 World Factbook
Population: 55,746,253 (July 2014) World Factbook
Burma, officially the Republic of the Union of Myanmar, commonly shortened to Myanmar, is a sovereign state in Southeast Asia bordered by Laos, Thailand, China, Bangladesh, and India. Wikipedia