It's about one-one-hundred-fifty-thousandth as big as Rhode Island.
In other words, 31.50 dunams is 0.000007871730 times the size of Rhode Island, and the size of Rhode Island is 127,037 times that amount.(a.k.a. The State of Rhode Island and Providence Plantations, a.k.a. RI) (United States)
The "Ocean State," Rhode Island measures 4,001,660 dunams in total area. Several large bays totaling 2,706,000 dunams make up 32.4% of its total area.
It's about one-one-hundred-fifty-thousandth as big as Fort Bliss.
In other words, 31.50 dunams is 0.000006950 times the size of Fort Bliss, and the size of Fort Bliss is 144,000 times that amount.(near Las Cruces, New Mexico and El Paso, Texas)
Fort Bliss is the United States Army's second-largest installation with a total area of 4,530,000 dunams. It is known as the largest TRADOC (Training and Doctrine Command) site, the Army's largest maneuver area, and the country's largest contiguous tract of open airspace.
It's about one-one-hundred-fifty-thousandth as big as Grand Canyon National Park.
In other words, 31.50 dunams is 0.000006388686620 times the size of Grand Canyon National Park, and the size of Grand Canyon National Park is 156,526.6950 times that amount.(Coconino County and Mohave Counties, Arizona, near Fredonia and Grand Canyon, Arizona)
Containing the 446 km (277 mi) Grand Canyon gorge, Grand Canyon National Park covers 4,930,590 dunams.
It's about one-one-hundred-fifty-thousandth as big as Anchorage.
In other words, 31.50 dunams is 0.0000062003930 times the size of Anchorage, and the size of Anchorage is 161,280.10 times that amount.(formally the Municipality of Anchorage, a.k.a. MOA) (Alaska)
The fourth-largest city in Alaska and in the country, Anchorage measures 5,080,323 dunams in total area. The city is the home of a large energy industry, a hub for air and overseas cargo traffic, and home to nearly half of Alaska's population.
It's about one-two-hundred-thousandth as big as Prince Edward Island.
In other words, 31.50 dunams is 0.000005541960 times the size of Prince Edward Island, and the size of Prince Edward Island is 180,442 times that amount.(a.k.a. PEI, a.k.a. P.E.I., a.k.a. Île-du-Prince-Édouard, a.k.a. Eilean a' Phrionnsa, a.k.a. Garden of the Gulf, a.k.a. Birthplace of the Confederation, a.k.a. Île Saint-Jean)
Prince Edward Island, located off Canada's eastern coast in the Gulf of St. Lawrence, measures 5,683,910 dunams in total area. Significant among Prince Edward Island's industries is agriculture, with the island producing 1.3 billion kg (1.4 million tons) of potatoes each year — almost 21% the output of the US state of Idaho with 3% as much land.
It's about one-two-hundred-thousandth as big as Delaware.
In other words, 31.50 dunams is 0.00000488585729715420 times the size of Delaware, and the size of Delaware is 204,672.371537020 times that amount.(United States)
The "First State," Delaware measures 6,447,180 dunams in total area. Its 19.3 km (12 mi) border with Pennsylvania, referred to as "Twelve-Mile Circle" is the only circular state boundary in the United States.
It's about one-two-hundred-fifty-thousandth as big as Juneau.
In other words, 31.50 dunams is 0.0000039473220 times the size of Juneau, and the size of Juneau is 253,336.30 times that amount.(a.k.a. the City and Borough of Juneau) (Alaska)
The capital of Alaska and third-largest city in both Alaska and the United States, Juneau measures 7,980,094 dunams in total area. Juneau is a port of call for many cruise ships voyaging off the Alaskan coast during the summer season.