It's about 5,500 times as big as The United States Capitol.
In other words, the size of The United States Capitol is 0.00019 times 1,230,000 dunams.(Washington, DC) (Immediate grounds size)
The grounds of United States Capitol, at the center of Washington DC's quadrants, consists of about seventeen buildings on a 230 dunams plot. While the Capitol Building is the central feature, other buildings include the Supreme Court Buildings and the Library of Congress Buildings, as well as several monuments and sculptures.
It's about 6,000 times as big as Grand Central Station.
In other words, the size of Grand Central Station is 0.0002 times 1,230,000 dunams.(formally Grand Central Terminal, a.k.a. Grand Central, a.k.a. GCT) (New York City, New York) (total terminal area). Grand Central station, the largest train station in the world by platform count, measures 200 dunams in total area. The large flag which was suspended from the concourse ceiling following the September 11th 2001 terrorist attacks measures about 0.07 dunams.
It's about one-seven-thousandth as big as Brazil.
In other words, 1,230,000 dunams is 0.0001444531 times the size of Brazil, and the size of Brazil is 6,922.6620 times that amount.(a.k.a. Brasil, formally the Federative Republic of Brazil, a.k.a. Rep&blica Federativa do Brasil)
Brazil measures 8,514,877,000 dunams in total area. Brazil is the world's fifth-largest country by area and eighth-largest economy (by GDP).
It's about one-eight-thousandth as big as China.
In other words, 1,230,000 dunams is 0.0001281656 times the size of China, and the size of China is 7,802.4060 times that amount.(a.k.a. People's Republic of China, a.k.a. 中华人民共和国, a.k.a.中華人民共和國 , a.k.a. Zhōnghuá Rénmín Gònghég) (UN mainland area figure)
Mainland China, as measured by the United Nations (excluding China's Special Administrative Regions — Hong Kong and Macau — and disputed territories such as Taiwan, Askai Chin, and the Trans-Karakoram Tract), occupies 9,596,961,000 dunams in total area . China is the the most populous country in the world and the third or fourth largest (depending on areas included in the measurement) in total area.
It's about one-eight-thousandth as big as United States.
In other words, 1,230,000 dunams is 0.0001251695 times the size of United States, and the size of United States is 7,989.1670 times that amount.(a.k.a. United States of America, a.k.a. America, a.k.a. USA, a.k.a. US)
The third or fourth largest country in the world (there is some dispute in how China's total area is measured), the United States measures 9,826,675,000 dunams in total area. The United States' economy is the fifth-largest in the world, comprising a quarter of nominal global GDP.
It's about one-eight-thousandth as big as Canada.
In other words, 1,230,000 dunams is 0.000123189 times the size of Canada, and the size of Canada is 8,117.610 times that amount.Canada measures 9,984,670,000 dunams in total area. It is both the second-largest country in the world and one of the most-sparsely populated, in addition to having the longest coastline of any country in the world — 243,000 km (151,000 mi).
It's about 9,000 times as big as The Pentagon.
In other words, 1,230,000 dunams is 8,910 times the size of The Pentagon, and the size of The Pentagon is 0.000112 times that amount.(a.k.a. United States Department of Defense Headquarters) (Washington, D.C.) (total floor area)
The Pentagon, the world's largest office building, contains a total floor area of 138 dunams. Built during World War II, the designers compensated for the steel rations then in effect by using 310,000 cu. m of concrete in the construction efforts.