Russian Federation is being the top country by land area in the world. As of 2015, land area in Russian Federation was 16.4 million sq. km that accounts for 12.67 % of the world's land area. The top 5 countries (others are China, the United States of America, Canada, and Brazil) account for 40.52 % of it. The world's total land area was estimated at 129 million sq. km in 2015.
Land area is the total area of the country excluding area under inland water bodies.