Rivers · #51 biggest of 1,014
How big is the Madeira River?
3,250 km
The Madeira River measures 3,250 km. That's about 367 Mount Everests lined up end to end.
By the numbers
- That's 3,250 km, or about 2,019 miles.
- It's about 1.91 million times taller than an average adult (1.7 m).
- Roughly 367 Mount Everests could line up across it.
- Walking nonstop, you'd need about 27 days to travel its length.
- Out of all 1,014 things in this collection, it ranks #51 by size.
Size comparison
How Madeira River stacks up against things of a similar size. Tap any bar to explore it.
Murray River
3,672 km
Io (moon)
3,643 km
Volga River
3,530 km
Moon
3,474.4 km
Madeira River
3,250 km
Indus River
3,180 km
Europa (moon)
3,122 km
Rio Grande
3,057 km
Brahmaputra River
2,900 km
Bars use a logarithmic scale so everything fits — real differences are even more extreme!
Fun fact
Standing beside it, an average person (1.7 m tall) would reach only about less than 0.001% of its height.
More in Rivers
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