What fraction of the world speaks English?

Answer 1

It is the official language of 53 countries. As a first language it is spoken by 309 to 400 million people and as a second language between 199 million and 1.4 billion. English is the third most spoken language in the world

Answer 2

Roughly 20% of the world's population speaks English as either a first or second language. It is one of the most widely spoken languages globally.