It's about one-fifteenth as big as Puerto Rico.
In other words, 650,000 dunams is 0.0732806 times the size of Puerto Rico, and the size of Puerto Rico is 13.64620 times that amount.(formally the Commonwealth of Puerto Rico, a.k.a. Estado Libre Asociado de Puerto Rico) (United States)
A self-governing territory of the United States located in the Caribbean Sea, Puerto Rico is an archipelago with 8,870,000 dunams in total land area. The island is known as a popular tourist destination.
It's about fourteen times as big as The Pitcairn Islands.
In other words, the size of The Pitcairn Islands is 0.071 times 650,000 dunams.(a.k.a. Pitcairn, Henderson, Ducie and Oeno Islands, a.k.a. Pitkern Ailen) (British overseas territory) (total land area)
The Pitcairn Islands are a group of four islands which have a combined area of 47,000 dunams. A British overseas territory since 1838, the island is populated by the descendents of mutineers and others who traveled on the British Royal Naval Ship, HMS Bounty during her 1789-1790 voyage.
It's about one-fifteenth as big as Hawaii (Island).
In other words, 650,000 dunams is 0.0623053 times the size of Hawaii (Island), and the size of Hawaii (Island) is 16.05 times that amount.(a.k.a. Hawaii, a.k.a. The Big Island) (Hawaii)
The largest of the main Hawaiian Islands and the largest island in the United States, Hawaii measures 10,432,500 dunams in total area. It is known for its continuously erupting (for the past two decades, as of 2011) volcano, Kīlauea, and for the black sand beaches formed by the lava flow.
It's about sixteen-and-a-half times as big as Rock Island.
In other words, 650,000 dunams is 16.5720 times the size of Rock Island, and the size of Rock Island is 0.060343 times that amount.(a.k.a. Arsenal Island, a.k.a. Rock Island Arsenal) (Illinois, on the Iowa border) (land area only)
Rock Island measures 39,220 dunams in total area. It is known as the largest government-owned weapons manufacturing arsenal in the United States and the US Army's only active foundry, as well as a former Union prison camp during the American Civil War.
It's about one-twentieth as big as Sitka.
In other words, 650,000 dunams is 0.05175003 times the size of Sitka, and the size of Sitka is 19.323660 times that amount.(a.k.a. the City and Borough of Sitka) (Alaska)
The second-largest city in both Alaska and the United States, Sitka measures 12,560,380 dunams in total area. The city is known as a major west coast seaport.
It's about one-twentieth as big as Glacier Bay National Park.
In other words, 650,000 dunams is 0.04891 times the size of Glacier Bay National Park, and the size of Glacier Bay National Park is 20.450 times that amount.(a.k.a. Glacier Bay National Park and Preserve) (Hoonah-Angoon Census area, and Yakutat City and Borough, Alaska)
Containing nine tidewater glaciers, Glacier Bay National Park covers 13,290,000 dunams of which 10,760,000 dunams is designated a Wilderness Area. Glacier Bay is home to the 33.8 km (21 mi) long Margerie Glacier.
It's about one-twentieth as big as Connecticut.
In other words, 650,000 dunams is 0.0452735 times the size of Connecticut, and the size of Connecticut is 22.088 times that amount.(United States)
The "Constitution State" or the "Nutmeg State," Connecticut measures 14,357,200 dunams in total area. The northern boundary between Connecticut and Massachusetts is an otherwise straight line marked by the 6,500 dunams "Southwick Jog" — a notch of Massachusetts extending southward into Connecticut near Congamond Lakes.