
U. S. A.
Gross Domestic Product (GDP) $$14.580 Trillion
The economy of the United States is the world's largest national economy. Its nominal GDP was estimated to be nearly $14.6 trillion in 2010, approximately a quarter of nominal global GDP. Its GDP at purchasing power parity was also the largest in the world, approximately a fifth of global GDP at purchasing power parity. The U.S. economy also maintains a very high level of output per capita.

China
GDP: $7,800,000,000,000

Japan
GDP: $4,487,000,000,000

India
GDP: $3,319,000,000,000

Germany
GDP: $2,863,000,000,000

United Kingdom
GDP: $2,278,999,982,080

Russia
GDP: $2,224,999,890,944

France
GDP: $2,096,999,956,480

Brazil
GDP: $2,030,000,013,312

Italy
GDP: $1,801,000,058,880