Land Area of the British Isles: Square Miles and Breakdown

The British Isles archipelago covers approximately 91,072 square miles (235,875 km²). The major components:

• Great Britain: 84,482 sq mi (218,772 km²)
• Ireland: 32,595 sq mi (84,421 km²)
• Isle of Man: 221 sq mi (572 km²)
• Channel Islands: 75 sq mi (194 km²)

Note: "British Isles" is a geographical term; politically, the islands comprise the United Kingdom, the Republic of Ireland, and Crown Dependencies.