Country size comparison
Papua New Guinea is about 1.4 times bigger than Vietnam.
Vietnam is approximately 331,210 sq km, while Papua New Guinea is approximately 462,840 sq km, making Papua New Guinea 40% larger than Vietnam. Meanwhile, the population of Vietnam is ~103.8 million people (94.2 million fewer people live in Papua New Guinea).
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This to-scale map shows a size comparison of Vietnam compared to Papua New Guinea. For more details, see an in-depth quality of life comparison of Papua New Guinea vs. Vietnam using our country comparison tool.