Rivers by length
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Quick answer: longest first, the order is Nile → Yenisei → Congo → Mekong → Mississippi → Volga → Danube → Ganges → Rhine → Seine → Thames.
About this list
River length depends on where you measure the source and mouth, so figures are approximate and close pairs are never compared. The Amazon is left out because its length relative to the Nile is disputed.
| # | Item | km (approx.) |
|---|---|---|
| 1 | Nile | 6,650 |
| 2 | Yenisei | 5,539 |
| 3 | Congo | 4,700 |
| 4 | Mekong | 4,350 |
| 5 | Mississippi | 3,730 |
| 6 | Volga | 3,530 |
| 7 | Danube | 2,850 |
| 8 | Ganges | 2,525 |
| 9 | Rhine | 1,230 |
| 10 | Seine | 777 |
| 11 | Thames | 346 |
Source: Commonly cited lengths (river length varies by measurement method).
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Frequently asked questions
What is the order of rivers by length?
Longest first: Nile, Yenisei, Congo, Mekong, Mississippi, Volga, Danube, Ganges, Rhine, Seine, Thames.
Which comes first and which comes last?
Nile comes first (6,650 km (approx.)) and Thames comes last (346 km (approx.)) among the items in this quiz.
Where is this data from?
Commonly cited lengths (river length varies by measurement method).
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