The largest deserts in the world are not all hot and sandy — a fact that surprises most students and trips up many in exams.
Desert geography is a recurring topic in UPSC Prelims, SSC CGL, Banking, Railways, and State PSC papers. This page gives you a complete, updated list of the world\u2019s biggest deserts with their area, type, location, and exam-focused facts — everything you need to revise confidently and score full marks.
⚡ Quick Facts
- Antarctica is the world\u2019s largest desert at 14.2 million sq. km \u2014 it is a cold desert, not a hot one.
- The Sahara is the world\u2019s largest HOT desert, covering about 9.2 million sq. km across North Africa.
- The Arabian Desert is the largest desert in Asia, spanning over 2.3 million sq. km.
- The Thar Desert, shared by India and Pakistan, is the world\u2019s 9th largest hot desert.
- Deserts cover approximately one-third of Earth\u2019s total land surface area.
Most students say the Sahara is the largest desert — this is WRONG. The Antarctic Desert (14.2 million sq. km) is the largest. A desert is defined by low precipitation (under 250 mm/year), not by heat. Antarctica qualifies easily. Examiners love this distinction and test it regularly across UPSC, SSC, and Banking papers.
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🗺️ Complete List of Largest Deserts in the World
| # ↕ | Desert Name ↕ | Area (sq. km) ↕ | Type | Location / Countries | Continent ↕ |
|---|---|---|---|---|---|
| 1 | Antarctic Desert | 14,200,000 | Cold Polar | Antarctica | Antarctica |
| 2 | Arctic Desert | 13,900,000 | Cold Polar | Russia, Canada, Greenland, Norway, USA | Arctic |
| 3 | Sahara Desert | 9,200,000 | Hot | Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, Tunisia | Africa |
| 4 | Arabian Desert | 2,330,000 | Hot | Saudi Arabia, Yemen, Oman, UAE, Jordan, Iraq, Kuwait | Asia |
| 5 | Gobi Desert | 1,295,000 | Cold Temperate | China, Mongolia | Asia |
| 6 | Patagonian Desert | 673,000 | Cold Temperate | Argentina, Chile | South America |
| 7 | Great Victoria Desert | 647,000 | Hot | Australia (Western & South Australia) | Australia |
| 8 | Kalahari Desert | 560,000 | Hot | Botswana, Namibia, South Africa | Africa |
| 9 | Great Basin Desert | 492,000 | Cold Temperate | USA (Nevada, Utah, Oregon, Idaho) | North America |
| 10 | Syrian Desert | 490,000 | Hot | Syria, Iraq, Jordan, Saudi Arabia | Asia |
| 11 | Chihuahuan Desert | 362,000 | Hot | Mexico, USA (Texas, New Mexico) | North America |
| 12 | Great Sandy Desert | 360,000 | Hot | Australia (Western Australia) | Australia |
| 13 | Karakum Desert | 350,000 | Cold Temperate | Turkmenistan | Asia |
| 14 | Colorado Plateau | 337,000 | Cold Temperate | USA (Utah, Colorado, Arizona, New Mexico) | North America |
| 15 | Kyzylkum Desert | 298,000 | Cold Temperate | Kazakhstan, Uzbekistan, Turkmenistan | Asia |
| 16 | Thar Desert | 200,000 | Hot | India (Rajasthan), Pakistan (Sindh, Punjab) | Asia |
| 17 | Gibson Desert | 156,000 | Hot | Australia (Western Australia) | Australia |
| 18 | Simpson Desert | 145,000 | Hot | Australia (Queensland, Northern Territory, South Australia) | Australia |
| 19 | Atacama Desert | 140,000 | Cold Coastal | Chile, Peru | South America |
| 20 | Namib Desert | 81,000 | Cold Coastal | Namibia, Angola, South Africa | Africa |
| 21 | Dasht-e Kavir | 77,000 | Hot | Iran | Asia |
| 22 | Dasht-e Lut | 52,000 | Hot | Iran | Asia |
| 23 | Lut Desert | 51,800 | Hot | Iran | Asia |
| 24 | Mojave Desert | 47,877 | Hot | USA (California, Nevada, Utah, Arizona) | North America |
| 25 | Negev Desert | 13,000 | Hot | Israel | Asia |
⚖️ Compare Two Deserts
📝 Key Notes & Memory Tips
The Antarctic Desert (14.2 million sq. km) is the LARGEST desert in the world \u2014 not the Sahara. A desert is defined by low precipitation (under 250 mm/year), not by heat. Antarctica receives almost no rainfall or snowfall, making it a desert. This is the most commonly tested fact in this topic.
The Sahara is the largest HOT desert \u2014 this distinction is critical. Many exam questions specifically ask for the \u201clargest hot desert\u201d to separate it from the Antarctic/Arctic answer. The Sahara spans 11 countries in North Africa.
The Gobi Desert (China/Mongolia) is a cold desert \u2014 not hot. Students often assume all Asian deserts are hot. The Gobi experiences extreme temperature swings from \u221240\u00b0C in winter to +45\u00b0C in summer.
The Thar Desert in Rajasthan (India) and Pakistan is the world\u2019s most densely populated desert. It is also called the \u201cGreat Indian Desert\u201d in many exam papers \u2014 both names are acceptable.
The Atacama Desert in Chile is the driest non-polar desert on Earth \u2014 some weather stations there have never recorded rainfall. It is a cold coastal desert, kept dry by the cold Humboldt Current offshore.
\u201cAny Serious Geographer\u201d
A = Antarctic | S = Sahara | G = Gobi
(Arctic fits between A and S but is often excluded from standard lists as it straddles multiple territories.)
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🧩 Practice Quiz
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The Antarctic Desert (14.2 million sq. km) is the largest desert in the world. A desert is defined by low precipitation, not heat \u2014 Antarctica qualifies as it receives less than 200 mm of precipitation per year.
The Sahara Desert in North Africa, covering approximately 9.2 million sq. km across 11 countries, is the world\u2019s largest hot desert. It is the third largest desert overall after the Antarctic and Arctic deserts.
The Thar Desert, located primarily in Rajasthan (India) and extending into Pakistan\u2019s Sindh and Punjab, is also called the Great Indian Desert. It covers approximately 200,000 sq. km and is the world\u2019s most densely populated desert.
The Atacama Desert is located in northern Chile and Peru in South America. It is the driest non-polar desert on Earth, kept extremely arid by the cold Humboldt Current and rain-shadow effect of the Andes Mountains.
The Gobi Desert (1.295 million sq. km) in China and Mongolia is a cold temperate desert, experiencing temperatures as low as \u221240\u00b0C in winter. The Sahara and Arabian deserts are hot deserts; the Thar is also a hot desert.
✅ Key Takeaways
❓ Frequently Asked Questions
The Antarctic Desert is the largest desert in the world, covering approximately 14.2 million sq. km. It is a cold polar desert \u2014 a common misconception is that the Sahara holds this title, but deserts are defined by low precipitation (under 250 mm/year), not by heat. Antarctica qualifies easily, receiving virtually no precipitation annually.
Deserts are broadly classified into four types: hot deserts (e.g. Sahara, Arabian, Thar), cold polar deserts (e.g. Antarctic, Arctic), cold temperate deserts (e.g. Gobi, Patagonian, Great Basin), and cold coastal deserts (e.g. Atacama, Namib). This classification is based on temperature, location, and the cause of aridity rather than just rainfall alone.
The Thar Desert in Rajasthan is the largest desert in India, covering approximately 200,000 sq. km. It extends westward into Pakistan\u2019s Sindh and Punjab provinces. The Thar is classified as a hot desert and holds the distinction of being the world\u2019s most densely populated desert, supporting millions of people in cities like Jodhpur and Jaisalmer.
Deserts feature regularly in UPSC Geography, SSC CGL, Banking General Awareness, and Railway exam papers. Frequently tested points include the largest/hottest/driest deserts, correct type classification (hot vs cold), the location of the Thar Desert in India, and the distinction between the Antarctic Desert and the Sahara. The cold desert trap \u2014 where students mistake Antarctica for non-desert \u2014 is a favourite examiner trick.
