Thailand is approximately 513,120 sq km, while Lesotho is approximately 30,355 sq km, making Lesotho 5.92% the size of Thailand. Meanwhile, the population of Thailand is ~69.0 million people (67.0 million fewer people live in Lesotho).
This to-scale map shows a size comparison of Thailand compared to Lesotho. For more details, see an in-depth quality of life comparison of Lesotho vs. Thailand using our country comparison tool.