The Yuan Dynasty was 33 million square kilometers.

The Spanish Empire has 24 million square kilometers.

The Russian empire has 28.8 million square kilometers.

13.4 million square kilometers of the Arab empire.

The Third Republic of France12.9 million square kilometers.

Portuguese Empire104,000 square kilometers.

Canada100000 square kilometers

There are 9.6 million square kilometers in the United States.

The Federative Republic of Brazil covers an area of 8.5 million square kilometers.

7.8 million square kilometers of Ottoman Empire

The Commonwealth of Australia has 7.6 million square kilometers.

The Persian Empire covers an area of 6.9 million square kilometers.

5.5 million square kilometers of Alexander Empire

The Roman Empire covers an area of 5.2 million square kilometers.

Mexico's second empire is 4.7 million square kilometers.

The Mughal Empire covers 4.7 million square kilometers.

The Xiongnu khanate covers an area of 4.6 million square kilometers.

Peacock Dynasty (India) 4.2 million square kilometers

The Byzantine Empire covers an area of 3.6 million square kilometers.

Not exactly, but I tried my best.

Hope to adopt