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.