What are the top ten mainstream languages in the world and how many people speak each language?

Below are the top ten mainstream languages in the world, along with their estimated number of speakers (ranked in order of the estimated number of speakers):

1. Chinese (Mandarin) – 1.4 billion
2. Spanish – 427 million
3. English – 426 million
4. Hindi – 305 million
5. Arabic – 246 million
6. Portuguese – 220 million
7. Bengali – 165 million
8. Russian – 147 million
9. Japanese – 128 million
10. French – 126 million