Principal Rivers of the World
| Europe | Asia | ||
| Volga | 3680 km | Yenisei | 4720 km |
| Danube | 2750 | Amur | 4670 |
| Don | 1790 | Yangtse-kiang | 4560 |
| Dneiper | 1790 | Ob | 4320 |
| Pechora | 1740 | Hwang-ho | 4130 |
| Dvina | 1620 | Lena | 3985 |
| Rhine | 1290 | Indus | 3160 |
| Elbe | 1150 | Ganges | 2690 |
| Vistula | 1040 | Euphrates | 2590 |
| Loire | 990 | Amu Daria | 2190 |
| Tagus | 880 | ||
| Oder | 880 | America | |
| Rhone | 805 | Mississippi-Missouri | 6496 |
| Po | 650 | Amazon | 5680 |
| Shannon | 405 | St. Lawrence | 3790 |
| Thames | 345 | Parana | 3570 |
| Mackenzie | 3520 | ||
| Africa | Rio Grande | 2785 | |
| Nile | 5890 | Saskatchewan-Nein | 2385 |
| Congo | 4610 | Orinoco | 2210 |
| Niger | 4135 | Columbia | 1985 |
| Zambesi | 2640 | Colorado | 1985 |
| Orange | 1850 | ||
| Limpopo | 1590 | Australia | |
| Senegal | 1425 | Murray | 2480 |