This list of countries by largest GDP shows how the membership and rankings of the world's ten largest economies as measured by their gross domestic product has changed. While the United States has consistently had the world's largest economy for some time, in the last fifty years the world has seen both rises and falls in relative terms of the economies of other countries.

Overview of the ten largest economies

By average values of GDP (nominal)

By average values of GDP (PPP)

World Bank statistics of the ten largest economies by GDP (PPP)

Angus Maddison statistics of the ten largest economies by GDP (PPP)

Main GDP countries

The United States Department of Agriculture has calculated the share of global real GDP for every country from 1969 to 2010.

European Union

As of 2023, the EU accounts for 17% of global GDP (nominal) and 14.5% of global GDP (PPP) in 2023.

United States

The United States represented 28.69% of the world's economy in 1960 (highest point). It accounted for 1.8% of the world's economy in 1820, 8.9% in 1870, and 18.9% in 1913. The United States produced 25.3% (nominal) and 15.5% of global GDP (PPP) in 2022.

China

China represented 1.61% of the world's economy in 1987 (lowest point), rising to 18.4% (nominal) and 19% (PPP) in 2022. It accounted for 25.4% of global GDP in 1 CE, 29% of world global output in 1600 CE, 17.3% of the world's economy in 1870, and 33% in 1820 (its highest point). China's share of global GDP varied from a quarter to a third of global output until the late 19th century.

India

The gross domestic product of India was estimated at 24.4% of the world's economy in 1500, 22.4% in 1600, 16% in 1820, and 12.1% in 1870. India's share of global GDP declined to less than 2% of global GDP by the time of its independence in 1947, and only rose gradually after the liberalization of its economy beginning in the 1990s. The Republic of India currently contributes 3.6% of world GDP (nominal) and 7.5% of global GDP (PPP) in 2023