The World's 8 Major Deserts: Ranked by Area

"Desert" = <250 mm annual precipitation. The eight largest by area span five continents.

The Big Eight

RankDesertArea (km²)Primary LocationType
1Antarctic Desert14,200,000AntarcticaPolar
2Arctic Desert13,900,000Arctic (N. America, Europe, Asia)Polar
3Sahara9,200,000North AfricaSubtropical hot
4Arabian2,330,000Arabian PeninsulaSubtropical hot
5Gobi1,295,000Mongolia / ChinaCold winter
6Patagonian673,000Argentina / ChileCold winter
7Great Victoria647,000AustraliaSubtropical hot
8Kalahari560,000Southern AfricaSubtropical hot

Notes on the List

  • The original prompt listed "Australian Outback" and "Great Basin" – these are regions, not formal desert names. Great Victoria is Australia's largest named desert; Great Basin (USA) is a cold-winter desert but smaller (~492,000 km²).
  • Taklamakan (China, 337,000 km²) and Sonora (NA, 260,000 km²) are major but miss the top 8.
  • Polar deserts (1 & 2) are often omitted in popular lists but meet the climatic definition.

Quick Comparison

Sahara alone > next 4 combined. Antarctic = 1.5 × Sahara. Desert classification follows Köppen BW (arid) / EF (polar ice).

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