Bolivia is approximately 1,098,581 sq km, while Vietnam is approximately 331,210 sq km, making Vietnam 30.15% the size of Bolivia. Meanwhile, the population of Bolivia is ~11.6 million people (87.1 million more people live in Vietnam).
This to-scale map shows a size comparison of Bolivia compared to Vietnam. For more details, see an in-depth quality of life comparison of Vietnam vs. Bolivia using our country comparison tool.