Czech Republic is approximately 78,867 sq km, while Vietnam is approximately 331,210 sq km, making Vietnam 320% larger than Czech Republic. Meanwhile, the population of Czech Republic is ~10.7 million people (88.0 million more people live in Vietnam).
This to-scale map shows a size comparison of Czech Republic compared to Vietnam. For more details, see an in-depth quality of life comparison of Vietnam vs. Czech Republic using our country comparison tool.