Hong Kong is approximately 1,108 sq km, while South Africa is approximately 1,219,090 sq km, making South Africa 109,926% larger than Hong Kong. Meanwhile, the population of Hong Kong is ~7.2 million people (49.2 million more people live in South Africa).
This to-scale map shows a size comparison of Hong Kong compared to South Africa. For more details, see an in-depth quality of life comparison of South Africa vs. Hong Kong using our country comparison tool.