Thailand vs US size comparison
How Big Is Thailand Compared to the US?
The US is about 19 times the size of Thailand. Thailand is about 4 times as densely populated. Drag Thailand over the US below to see the difference at true size.
Hawaii and the territories are not drawn.
Printable Thailand vs US size comparison
Free to print or share: Thailand laid over the US at true size, with both areas, on one landscape A4 or US Letter page.
Key facts
- Area of Thailand
- 513,120 km² (198,117 sq mi)
- Area of the US
- 9,833,517 km² (3,796,741 sq mi)
- Size difference
- The US is about 19 times bigger
- Closest US state in size
- California (423,965 km²)
- Population (2025)
- Thailand 71,619,863; the US 341,784,857
- Thailand's rank by area
- 51st-largest of 197
How big Thailand is compared with the US
The US is about 19 times the size of Thailand: 9,833,517 km² (3,796,741 sq mi) against 513,120 km² (198,117 sq mi). Even the 48 contiguous states alone, without Alaska, could hold Thailand about 16 times. Thailand is bigger than 48 of the 50 US states and smaller than the other 2; the state closest in size is California (423,965 km²). It is the 51st-largest of the world's 197 countries, and the 12th-largest of 47 in Asia; the US is the third-largest.
Thailand has about 72 million people (2025), the 20th-most populous country in the world, against 342 million in the US. With 140 people per km² it is about 4 times as crowded as the US (35 per km²), the 66th-most densely populated country.
Thailand and the US on a world map
Thailand reaches from 6°N to 20°N; the US from 19°N to 71°N, with Hawaii in the south and Alaska in the far north. Most world maps use the Mercator projection, which enlarges places more the further they are from the Equator. It draws Thailand about 1.08 times its real size and the US about 2.3 times (Alaska far more than Florida). So on a normal world map the US looks about 41 times the size of Thailand, when it is really about 19 times. The equal-area map above shows the real difference.
Where Thailand is
Thailand's capital, Bangkok, is 14,160 km (8,800 miles) from Washington, D.C. as the crow flies. Thailand borders 4 countries: Cambodia, Laos, Myanmar and Malaysia.
Thailand and US in numbers
| Thailand | US | Difference | |
|---|---|---|---|
| Area | 513,120 km² 198,117 sq mi | 9,833,517 km² 3,796,741 sq mi | The US is 19× bigger |
| Population (2025) | 71,619,863 | 341,784,857 | The US has 4.8× more |
| Rank by area | 51st-largest | Third-largest | of 197 countries |
| People per km² | 140 | 35 | Thailand is 4× denser |
| Capital | Bangkok | Washington, D.C. | 14,160 km apart |
| Neighbouring countries | 4 | 2 |
Thailand compared with US states
Frequently asked questions
Is Thailand bigger than the US?
No. The US is about 19 times the size of Thailand: 9,833,517 km² (3,796,741 sq mi) against 513,120 km² (198,117 sq mi).
How many times would Thailand fit into the US?
About 19 times (19.16). Into the 48 contiguous states alone, about 16 times.
Which US state is Thailand closest in size to?
California (423,965 km²). Thailand is about 1.21 times the size of California.
Is Thailand bigger than Texas?
No. Texas is about 1.36 times the size of Thailand.
Which has more people, Thailand or the US?
The US: about 342 million people in 2025, about 4.8 times the 72 million in Thailand.
Why does Thailand look so small on a world map?
Most world maps use the Mercator projection, which stretches places more the further they are from the Equator. The US is further from the Equator than Thailand, so it is stretched more. On a Mercator map the US looks about 41 times the size of Thailand, not 19.
Where does Thailand rank by size?
Thailand is the 51st-largest of the world's 197 countries by total area and the 12th-largest in Asia. The US is the third-largest.
How far is Thailand from the US?
Thailand's capital, Bangkok, is 14,160 km (8,800 miles) from Washington, D.C. in a straight line.
Sources
- Areas: CIA World Factbook (total area, land and water). US states: US Census Bureau.
- Populations: World Bank, World Development Indicators (2025).
- Outlines are drawn on an equal-area projection, so their sizes on the map match their real areas.