The global economy is worth an estimated $79.98 trillion, according to the World Economic Forum.

As the world's economies grow, however, there is expected to be a reshuffling when it comes to the largest national economies.

China and India, for example, are projected to be the two largest economies by 2050, according to a recent PwC World 2050 report.

Indonesia, Russia and Mexico are predicted to climb in the rankings, passing Germany, France and the United Kingdom, the report said. Turkey and Vietnam are also viewed as fast risers.

As it stands today, however, the World Economic Forum listed the following 10 countries, in ascending order, as the biggest in the world: 

10. Canada

The U.S.'s North American neighbor slides in the top 10 ranking with a $1.8 trillion economy.

9. Brazil

The South American country has an economy of more than $2.14 trillion, and growing. The report estimates the Brazilian economy will increase to about $7.5 trillion by 2050.

8. Italy

The European country hits the list in the eighth spot with an economy of $2.18 trillion. The PwC report speculates that the country could drop out of the top 20 economies over the next few decades.

7. India

The country’s economy is currently $2.85 trillion, but PwC expects it to grow to $44.1 trillion and surpass the U.S. economy by 2050.

6. France

Currently, the country has a $2.93 trillion economy, but the report indicates a slow growth ahead, to about $4.7 trillion in 2050.

5. United Kingdom

The outlook for the future economy of the county is only $5.3 trillion by 2050. Its current economy is worth $2.94 trillion.

4. Germany

The German economy is $4.2 trillion and expected to reach only $6.1 trillion by 2050.

3. Japan

In 2017, Japan’s economy was $4.87 trillion. In 2018, it has grown to $5.1 trillion. It is expected to drop to eighth in the world by 2050.

2. China

China increased its economy by $2 trillion from 2017, to $14 trillion. The PwC report predicts China’s economy will grow to nearly $58.5 trillion in 2050, the largest in the world.

1. United States

The U.S. economy increased from around $19.4 trillion last year to $20.4 trillion. It is expected to grow to about $34.1 billion by 2050. The World Economic Forum reports the U.S. economy accounts for about one-quarter of the world's economy.

The full report can be viewed here.