Year Of Maximum Territorial Extent
|
Maximum Size (Square Kilometers)
|
Empire
|
1920
|
35,500,000
|
British Empire
|
1270 or 1309
|
24,000,000
|
Mongol Empire
|
1895
|
22,800,000
|
Russian Empire
|
1810
|
13,700,000
|
Spanish Empire
|
1790 or 1820
|
13,430,000
|
Qing Dynasty
|
1310 or 1330
|
12,360,000
|
Yuan Dynasty
|
1920
|
11,500,000
|
Second French Empire
|
750
|
11,100,000
|
Abbasid Caliphate
|
720
|
11,100,000
|
Umayyad Caliphate
|
176 BC
|
9,000,000
|
Xiongnu Empire
|
1942
|
8,510,000
|
Empire of Japan
|
1889
|
8,337,000
|
Empire of Brazil
|
669 or 715
|
8,080,000
|
Tang Dynasty
|
1640
|
7,100,000
|
Iberian Union
|
100
|
6,500,000
|
Eastern Han Dynasty
|
1450
|
6,500,000
|
Ming Dynasty
|
655
|
6,400,000
|
Rashidun Caliphate
|
557
|
6,000,000
|
Gokturk Khaganate
|
1310
|
6,000,000
|
Golden Horde Khanate
|
50 BC
|
6,000,000
|
Western Han Dynasty
|
500 BC
|
5,500,000
|
Achaemenid Empire
|
1820
|
5,500,000
|
Second Portuguese Empire
|
323 BC
|
5,200,000
|
Macedonian Empire
|
1683
|
5,200,000
|
Ottoman Empire
|
117
|
5,000,000
|
Roman Empire
|
800
|
4,600,000
|
Tibetan Empire
|
1821
|
4,429,000
|
First Mexican Empire
|
1405
|
4,400,000
|
Timurid Empire
|
969
|
4,100,000
|
Fatimid Caliphate
|
624
|
4,000,000
|
Eastern Turkic Khaganate
|
|