It's about as big as Rock Island
In other words, the size of Rock Island is 1.0001 times 3,922 hectares.(a.k.a. Arsenal Island, a.k.a. Rock Island Arsenal) (Illinois, on the Iowa border) (land area only)
Rock Island measures 3,922 hectares 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 four-fifths as big as The Pitcairn Islands
In other words, 3,922 hectares is 0.830 times the size of The Pitcairn Islands, and the size of The Pitcairn Islands is 1.20 times that amount.(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 4,700 hectares. 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-and-three-tenths times as big as Inis Mór
In other words, the size of Inis Mór is 0.770 times 3,922 hectares.(a.k.a. Inishmore, a.k.a. Árainn Mhór, a.k.a. Inis Bant, a.k.a. Árainn na Naomh) (Connacht, Ireland)
The largest of the Aran Islands, Inis Mór measures 3,100 hectares. The west side of the island is home to the Poll na bPéist, a.k.a. the wormhole, a naturally-formed, 0.029 hectares, rectangular pool on the island's cliffside.
It's about one-and-a-half times as big as Tuvalu
In other words, the size of Tuvalu is 0.670 times 3,922 hectares.(a.k.a. Ellice Islands)
Tuvalu is a chain of islands totaling 2,600 hectares in area and located midway between Hawaii and Australia, near Samoa and Fiji. It is the third-least populated nation in the world, with just 11,992 citizens and residents.
It's about two-thirds as big as San Marino
In other words, the size of San Marino is 1.60 times 3,922 hectares.(a.k.a. The Most Serene Republic of San Marino, a.k.a. Serenissima Repubblica di San Marino)
an Marino is an enclave country located within the Apennine Mountains in Italy, with a total area of 6,100 hectares. Established in 301 CE, San Marino is the oldest sovereign state in the world.
It's about half as big as Coron Island
In other words, 3,922 hectares is 0.550 times the size of Coron Island, and the size of Coron Island is 1.80 times that amount.(Calamian Islands, Palawan, Philippines)
A popular tourist destination, Coron Island, measures about 7,100 hectares in total area. The rocky offshore area of the island makes it popular for shipwreck diving, with some wrecks as shallow as 10 ft. under the water.
It's about one-and-nine-tenths times as big as Indira Gandhi International Airport (DEL)
In other words, 3,922 hectares is 1.8980 times the size of Indira Gandhi International Airport (DEL), and the size of Indira Gandhi International Airport (DEL) is 0.52690 times that amount.(Palam, Delhi, India) (total site area)
Indira Gandhi International Airport covers a total area of about 2,066 hectares, including three main terminals and three main runways. The airport offers a total runway length of 11,053 m.