Countries by GDP: 10 Largest Economies in the World

2. China

2021 GDP: $17.73 trillion

With a GDP of $17.73 trillion in 2021, China has the second largest economy in the world in terms of nominal GDP. In terms of GDP, PPP, however, China has the largest economy in the world given goods and services on average cost less in the country than in the United States. Considering China has four times as many people as the United States does, the country’s average GDP per capita is still meaningfully lower.