What is the longest river in the world? How long is the longest river?

The longest river is the Nile in Africa. The Nile is 6,825 kilometers (4,237 miles). There are some other rivers not too far behind.

• Amazon, South America - 6,437 km (4,000 miles)
• Chang Jiang, Asia - 6,380 km (3,964 miles)
• Mississippi-Missouri, North Americal - 5,971 km (3,710 miles)

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