This list ranks the busiest seaports by cargo tonnage, which refers to the total mass, or in some cases the volume, of cargo transported through each port. The rankings are based on AAPA world port data.
The cargo rankings based on tonnage should be interpreted with caution, since these measures are not directly comparable and cannot be standardized into a single unit. In the Measure column, MT = Metric Tons, HT = Harbor Tons, FT = Freight Tons, and RT = Revenue Tons.
The Port of Ningbo-Zhoushan is the busiest port in the world in terms of cargo tonnage. It handled 888.96 million tons of cargo in 2015. The port is located in Ningbo and Zhoushan, on the coast of the East China Sea, in Zhejiang province on the southeast end of Hangzhou Bay, across which it faces the municipality of Shanghai.
The port is at the crossroads of the northâsouth inland and coastal shipping route, including canals to the important inland waterway to interior China, the Yangtze River, to the north. The port consists of several ports which are Beilun (seaport), Zhenhai (estuary port), and old Ningbo harbor (inland river port).
The Port of Rotterdam is the largest seaport in Europe, and the world's largest seaport outside of Asia, located in and near the city of Rotterdam, in the province of South Holland in the Netherlands. From 1962 until 2004, it was the world's busiest port by annual cargo tonnage. It was overtaken first in 2004 by the port of Singapore, and since then by Shanghai and other very large Chinese seaports. In 2020, Rotterdam was the world's tenth-largest container port in terms of twenty-foot equivalent units (TEU) handled. In 2017, Rotterdam was also the world's tenth-largest cargo port in terms of annual cargo tonnage.
Covering 105 square kilometres (41 sq mi), the port of Rotterdam now stretches over a distance of 40 kilometres (25 mi). It consists of the city centre's historic harbour area, including Delfshaven; the Maashaven/Rijnhaven/Feijenoord complex; the harbours around Nieuw-Mathenesse; Waalhaven; Vondelingenplaat; Eemhaven; Botlek; Europoort, situated along the Calandkanaal, Nieuwe Waterweg and Scheur (the latter two being continuations of the Nieuwe Maas); and the reclaimed Maasvlakte area, which projects into the North Sea. The Port of Rotterdam is located in the middle of the Rhine-Meuse-Scheldt delta. Rotterdam has five port concessions (ports) within its boundariesâoperated by separate companies under the overall authority of Rotterdam.
The Port of Singapore is a collection of facilities and terminals that conduct maritime trade and handle Singapore's harbours and shipping. Since 2015, it has been ranked as the world's top maritime capital. Currently, it is ranked as the world's second-busiest port in terms of total shipping tonnage, while also transshipping a fifth of the world's shipping containers, and half of the world's annual crude oil supplies, alongside being ranked as the world's busiest transshipment port. Furthermore, it was also ranked as the world's busiest port in terms of total cargo tonnage handled until 2010, when it was surpassed by the Port of Shanghai.
Due to the city-state's strategic location, Singapore has served as a significant entrepĂ´t and trading post on an international level for at least two centuries. During the contemporary era, its ports have been regarded not merely as an economic boon for the country, but as vitally important for the country's economic development since Singapore lacks land and natural resources. Additionally, the port is regarded as particularly important for importing natural resources, and then later re-exporting products after they have been domestically refined and shaped in some manner, for example, wafer fabrication or oil refining to generate value-added revenue. The Port of Singapore is also the world's largest bunkering port. Moreover, the majority of ships that pass between the Indian Ocean and the Pacific Ocean go through the Singapore Strait. The Straits of Johor on the country's north are impassable for ships due to the Johor-Singapore Causeway, built in 1923, which links the town of Woodlands, Singapore, to the city of Johor Bahru in Malaysia.
The table below lists 20 of the busiest ports in Europe; Rotterdam currently ranks first here, and eleventh in the world by cargo tonnage. For ferries, transport vehicles like heavy trucks are included using their full weight, while passenger cars are not counted as cargo.
Greater Houston, designated by the United States Office of Management and Budget as HoustonâPasadenaâThe Woodlands, is the fifth-most populous metropolitan statistical area in the United States, encompassing ten counties along the Gulf Coast in Southeast Texas. With a population of 7,824,643 in 2025,
The region of approximately 10,000 square miles (26,000 square kilometers) centers on Harris County, the third-most populous county in the U.S., which contains the city of Houston, the economic and cultural center of the South with a population of more than 2.3 million as of 2010. Greater Houston is part of the Texas Triangle megaregion along with the DallasâFort Worth metroplex, Greater Austin, and Greater San Antonio. Greater Houston also serves as a major anchor and economic hub for the Gulf Coast. Its Port of Houston is the largest port in the United States and the 16th-largest in the world.
Ningbo is a sub-provincial city in northeastern Zhejiang province, People's Republic of China. It comprises six urban districts, two satellite county-level cities, and two rural counties, including several islands in Hangzhou Bay and the East China Sea. Ningbo is the southern economic center of the Yangtze Delta megalopolis, which includes Shanghai among other cities. The port of NingboâZhoushan, spread across several locations, is the world's busiest port by cargo tonnage and the world's third-busiest container port since 2010.
Ningbo is the core city and center of the Ningbo Metropolitan Area. To the north, Hangzhou Bay separates Ningbo from Shanghai; to the east lies Zhoushan in the East China Sea; on the west and south, Ningbo borders Shaoxing and Taizhou respectively. As of the 2020 Chinese national census, the entire administrated area of Ningbo City had a population of 9.4 million (9,404,283).
Greater Houston, designated by the United States Office of Management and Budget as HoustonâPasadenaâThe Woodlands, is the fifth-most populous metropolitan statistical area in the United States, encompassing ten counties along the Gulf Coast in Southeast Texas. As of 2025, it has a population of 7,824,643.
The region of approximately 10,000 square miles (26,000 square kilometers) centers on Harris County, the third-most populous county in the U.S., which contains the city of Houston, the economic and cultural center of the South with a population of more than 2.3 million as of 2010. Greater Houston is part of the Texas Triangle megaregion along with the DallasâFort Worth metroplex, Greater Austin, and Greater San Antonio. Greater Houston also serves as a major anchor and economic hub for the Gulf Coast. Its Port of Houston is the largest port in the United States and the 16th-largest in the world.