Thailand is approximately 513,120 sq km, while Namibia is approximately 824,292 sq km, making Namibia 61% larger than Thailand. Meanwhile, the population of Thailand is ~69.0 million people (66.3 million fewer people live in Namibia).
This to-scale map shows a size comparison of Thailand compared to Namibia. For more details, see an in-depth quality of life comparison of Namibia vs. Thailand using our country comparison tool.