| Most populous first language, native language, mother tongue. |
| Mandarin | 855 million |
| Hindi | 366 million |
| Spanish | 358 million |
| English | 341 million |
| Arabic | 206 million |
| Most populous language learned as a second language. |
| Mandarin | | | 178 million |
| Hindi | | | - |
| Spanish | | | 59 million |
| English | | | 850 million |
| Arabic | | | 216 million |
| Most popular language spoken in the world? |
| Mandarin | 855 million | + | 178 million | = | 1,050 million |
| Hindi | 366 million | + | - | = | 366 million |
| Spanish | 358 million | + | 59 million | = | 417 million |
| English | 341 million | + | 850 million | = | 1,500 million |
| Arabic | 206 million | + | 216 million | = | 422 million |