Top 10 Largest Rivers in the World by Volume

5.Río de la Plata

Volume: 22,000 m³/sec – 777,000 cu ft/s

Length:3,998 km /2,484 miles

Discharges to: Atlantic Ocean

The first South American river and number 5 on our list of the largest rivers in the world by volume is Río de la Plata or Silver River. It is created by the confluence of Parana and Uruguay rivers.