Răspuns:
Volga / 3.692 km
Dunarea / 2.860 km
Ural / 2.428 km
Nipru / 2.290 km
Don / 1.950 km
Peciora / 1.809 km
Kama / 1.805 km
Dvina de Nord / 1.774 km
Oka / 1.500 km
Belaia (sau Kama Alba) / 1.430 km
1.Dunarea-14. 2.845 km
2.Volga-13. 3.534 km
3.Nipru-19. 2.145 km
4.Nistru-23. 1.362 km
5.Rin-24. 1.3020 km
6.Elba-26. 1.091 km
7.Vistula-27. 1.047 km
8.Maas-30.925 km
9.Tajo‐29. 1.007 km
10.Pad-34.652 km
