Economy · Ocean Freight Capacity

Container Ship Capacity

The world’s container fleet can carry 38 times the cargo of 1980, after a decade when it stopped compounding.

• 10.3M dwt (1980) → 388.5M dwt (2026)
• Doubled every ~7.5 yrs, 1980 to 2010
• 2010s: +10.6M dwt a year, as in the 2000s
• Capacity by weight, not boxes or cargo

Count the world’s container ships by what they can carry and the fleet held 10.3 million deadweight tonnes at the start of 1980. Over the next three decades it doubled about every seven and a half years, to 22.3 million in 1990, 63.6 million in 2000 and 169 million in 2010.

Then the compounding stopped. The 2010s added about 10.6 million tonnes of capacity a year, the same as the 2000s had, so on a fleet twice the size the growth rate halved, from about 10% a year to 5%: steady addition rather than multiplication. The 2020s brought a second wind. The ships added during 2023, 2024 and 2025, 24.1, 32.3 and 24.4 million tonnes, are the three largest yearly additions on record, and on 1 January 2026 the fleet stood at 388.5 million deadweight tonnes, 38 times its 1980 size, now doubling about every twelve years.

The figures are UNCTAD’s, calculated from Clarksons Research data: commercial ships of 100 gross tonnes and above, counted at the start of each year, and each point is that 1 January stock plotted at its year. Deadweight tonnage measures how much a ship can carry by weight, not how many boxes it holds, and capacity is not cargo moved: this curve tracks the size of the fleet, not how busy it is. In UNCTAD’s table the ship types fail to sum to the total fleet in one year, 2006, by 0.2%; the container figure for that year sits in line with its neighbours.

Source: UNCTADstat merchant fleet (Clarksons Research data)

Download the data: container_ship_capacity.csv · container_ship_capacity.json

All curves · The chart is drawn in your browser and needs JavaScript. Every number it plots is in the table above.