Ranked: The 15 Longest Rivers in the World
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Key Takeaways
- Experts disagree on the length of the Amazon—some measurements put it at 4,345 miles (6,992 km), narrowly edging out the Nile.
- China’s Yangtze is the longest river (3,915 miles / 6,300 km) to flow entirely within a single country.
From the heart of early civilization to modern hydroelectric power, the world’s great rivers have long shaped economies and cultures.
Today’s infographic sizes up the 15 longest rivers on Earth, showing how far—and through how many countries—each system flows.
The data for this visualization comes from Encyclopedia Britannica, which lists river lengths in both miles and kilometers.
The Nile vs. the Amazon: A Fluid Rivalry
For decades the Nile, stretching 4,132 miles (6,650 km) from the Ugandan highlands to Egypt’s Mediterranean delta, has worn the crown of “world’s longest river.”
| Rank | River | Countries | Length (miles) | Length (km) |
|---|---|---|---|---|
| 1 | Nile |  Uganda, South Sudan, Sudan,  Egypt |
4,132 | 6,650 |
| 2 | Amazon–Ucayali–Apurímac |  Peru, Colombia, Brazil |
4,000 | 6,400 |
| 3 | Yangtze |  China |
3,915 | 6,300 |
| 4 | Mississippi–Missouri–Red Rock |  U.S. |
3,710 | 5,971 |
| 5 | Yenisey–Baikal–Selenga |  Mongolia, Russia |
3,442 | 5,540 |
| 6 | Huang He (Yellow) | China |
3,395 | 5,464 |
| 7 | Ob–Irtysh | China, Kazakhstan, Russia |
3,362 | 5,410 |
| 8 | Paraná | Brazil, Paraguay, Argentina |
3,032 | 4,880 |
| 9 | Congo |  DRC,  Republicof the Congo,  Angola |
2,900 | 4,700 |
| 10 | Amur–Argun | Mongolia, China, Russia |
2,761 | 4,444 |
| 11 | Lena | Russia |
2,734 | 4,400 |
| 12 | Mekong | China, Myanmar, Laos,  Thailand, Cambodia, Vietnam |
2,700 | 4,350 |
| 13 | Mackenzie–Slave–Peace |  Canada |
2,635 | 4,241 |
| 14 | Niger |  Guinea,  Mali, Niger,  Benin, Nigeria |
2,600 | 4,200 |
| 15 | Volga | Russia |
2,193 | 3,530 |
Yet recent Brazilian and Peruvian surveys give the Amazon—as measured from its remote Apurímac headwaters—an even longer reach of up to 4,345 miles.
The discrepancy stems from dense rainforest terrain and seasonal channel changes that make precise mapping difficult.
Regardless of which river tops the list, both dwarf their peers in cultural significance, and ecological diversity.
Related: The Amazon rainforest was named after the river. See how the forest plays a critical role in global food supply.One-Country Rivers
Five rivers in the top 15 run exclusively within one nation: China’s Yangtze and Huang He, the U.S.’ Mississippi, and Russia’s Lena and Volga.
Confined courses can simplify water-management policy, but they also concentrate environmental risk inside a single jurisdiction.
The Mississippi’s drainage basin includes two Canadian provinces, which means rainwater falling in some Canadian areas eventually makes its way into the Mississippi through tributaries.Asia Has Half of the World’s Longest Rivers
Asia dominates the leaderboard with seven entries, underscoring the continent’s vast landmass and high mountain sources.
South America contributes two mega-rivers, the Amazon and the Paraná, both critical to regional trade corridors.
Africa’s Nile and Niger highlight the continent’s north-south hydrologic contrasts, while Europe’s sole representative, the Volga, plays an outsized role as Russia’s historic “national highway.”
Notably absent are Australia and Antarctica, whose shorter, intermittent waterways fall far below the 2,000-mile threshold.
Related: Take a look at the entire world through only rivers in these startling maps.Learn More on the Voronoi App 
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