The area of Hanalei National Wildlife Refuge is 3,710,967.3393408 square meters.
The area of Choctaw National Wildlife Refuge is 17.07 square kilometers.
The area of Aransas National Wildlife Refuge is 464 square kilometers.
The area of Driftless Area National Wildlife Refuge is 3,286,006.946424576 square meters.
The area of Desecheo National Wildlife Refuge is 1,456,868.312064 square meters.
The area of Catahoula National Wildlife Refuge is 101.827 square kilometers.
The area of Tetlin National Wildlife Refuge is 2,833.034 square kilometers.
The area of Toppenish National Wildlife Refuge is 8,004,682.003507201 square meters.
The area of Pahranagat National Wildlife Refuge is 21.772 square kilometers.
The area of Aroostook National Wildlife Refuge is 21.254 square kilometers.
The area of Nowitna National Wildlife Refuge is 8,498.398 square kilometers.
The area of Audubon National Wildlife Refuge is 59.63 square kilometers.
The area of Nansemond National Wildlife Refuge is 1,663,257.9896064 square meters.