Top 10 Largest Cruise Ships in the World with Size Comparison and Chart
Published: 26 Mar 2026
Ever wondered how big the world’s largest cruise ships really are? Some are longer than skyscrapers, carry more passengers than small towns, and weigh as much as a small mountain! In this post, we break down the largest cruise ships in the world, compare their sizes and show you a clear comparison chart so you can see which mega-ship truly reigns supreme.
Cruise Ship Size Comparison Chart
Check out the list of the world’s largest luxury cruise ships and see how they compare in length, tonnage and passenger capacity in this easy-to-read cruise ship size comparison.
| Rank | Ship Name | Length | Gross Tonnage | Max Passengers | Crew | Year Entered Service |
|---|---|---|---|---|---|---|
| 1 | Star of the Seas | 1,197 ft ≈364.83 m |
≈250,800 GT | 7,600 | 2,350 | 2025 |
| 2 | Icon of the Seas | 1,196 ft ≈364.75 m |
≈250,800 GT | 7,600 | 2,350 | 2024 |
| 3 | Utopia of the Seas | 1,188 ft ≈362 m |
≈236,473 GT | ≈6,988 | 2,290 | 2024 |
| 4 | Wonder of the Seas | 1,188 ft ≈362 m |
≈235,600 GT | ≈7,084 | 2,300 | 2022 |
| 5 | Symphony of the Seas | 1,188 ft ≈362 m |
≈228,081 GT | ≈6,680 | 2,200 | 2018 |
| 6 | Harmony of the Seas | 1,188 ft ≈362 m |
≈226,963 GT | ≈6,687 | 2,300 | 2016 |
| 7 | Oasis of the Seas | 1,187 ft ≈361 m |
≈226,838 GT | ≈6,771 | 2,200 | 2009 |
| 8 | Allure of the Seas | 1,187 ft ≈361 m |
≈225,282 GT | ≈6,780 | 2,200 | 2010 |
| 9 | MSC World Europa | 1,094 ft ≈333 m |
≈205,700 GT | ≈6,762 | 2,138 | 2022 |
| 10 | MSC World America | 1,093 ft ≈333 m |
≈216,683 GT | ≈6,764 | 2,138 | 2025 |
Note: Other notable ships just outside the Top 10 include Carnival Jubilee, which is 1,130 feet long with a capacity of 6,800 passengers. While not in the Top 10, it’s still a massive ship worth knowing about!
Largest cruise ship comparison chart
Explore the world’s largest cruise ships in this easy-to-read comparison chart. This comparison chart highlights the top 10 largest cruise ships, providing a clear overview of their dimensions, capacity and scale.
How Cruise Ship Size Is Measured?
According to the Cruise Lines International Association, cruise ships are typically measured using gross tonnage along with dimensions like length and passenger capacity, to accurately represent their overall scale and onboard space.
- Length – How long the ship is from bow to stern. For example, Icon of the Seas is 1,196 feet long, almost a fifth of a mile!
- Gross Tonnage (GT) – This measures the ship’s total internal volume, not its weight. The bigger the GT, the more space for passengers, crew and facilities. Icon of the Seas tops the chart at 250,800 GT.
- Passenger Capacity – How many people the ship can safely carry. Mega-ships can host 6,000–7,600 passengers along with thousands of crew.
- Height – From keel to the top deck, ships can reach the height of a 20-story building, making them visible from miles away.
The largest cruise ships in the world are truly massive, and it’s hard to picture their size until you see the numbers. Take Icon of the Seas, for example — it stretches 1,196 feet long, weighs over 250,800 gross tons (about 501 million pounds), and rises like a 20-story building from keel to top deck.
Top 10 Largest Cruise Ships in the World
Explore the top 10 largest cruise ships in the world that dominate the seas in size, luxury and entertainment from towering decks to massive passenger capacity.
1. Star of the Seas – Royal Caribbean
Length: 1,197 ft (≈364.83 m)
Gross Tonnage: 250,800 GT
Passenger Capacity: 7,600
Crew: 2,350
Year Launched: 2025
Star of the Seas holds the top spot among the world’s largest cruise ships. With its massive size and state-of-the-art amenities, it offers unparalleled experiences across multiple decks, making it the ultimate floating resort.
2. Icon of the Seas – Royal Caribbean
Length: 1,196 ft (≈364.75 m)
Gross Tonnage: 250,800 GT
Passenger Capacity: 7,600
Crew: 2,350
Year Launched: 2024
Almost identical in size to Star of the Seas, Icon of the Seas impresses with innovative features, family-friendly attractions and luxurious spaces for all passengers.
3. Utopia of the Seas – Royal Caribbean
Length: 1,188 ft (≈362 m)
Gross Tonnage: 236,473 GT
Passenger Capacity: ≈6,988
Crew: 2,290
Year Launched: 2024
Utopia of the Seas combines vast size with high-end entertainment, dining, and leisure options, making it one of the most anticipated luxury cruise ships in the world.
4. Wonder of the Seas – Royal Caribbean
Length: 1,188 ft (≈362 m)
Gross Tonnage: 235,600 GT
Passenger Capacity: ≈7,084
Crew: 2,300
Year Launched: 2022
Known for its seven neighborhoods and thrilling onboard attractions, Wonder of the Seas continues to wow passengers with its scale and luxury.
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5. Symphony of the Seas – Royal Caribbean
Length: 1,188 ft (≈362 m)
Gross Tonnage: 228,081 GT
Passenger Capacity: ≈6,680
Crew: 2,200
Year Launched: 2018
With massive entertainment options, including Broadway-style shows and surf simulators, Symphony of the Seas remains one of the most iconic cruise ships in the world.
6. Harmony of the Seas – Royal Caribbean
Length: 1,188 ft (≈362 m)
Gross Tonnage: 226,963 GT
Passenger Capacity: ≈6,687
Crew: 2,300
Year Launched: 2016
Harmony of the Seas continues to impress travelers with its water parks, dining variety, and seven distinct neighborhoods.
7. Oasis of the Seas – Royal Caribbean
Length: 1,187 ft (≈361 m)
Gross Tonnage: 226,838 GT
Passenger Capacity: ≈6,771
Crew: 2,200
Year Launched: 2009
A pioneer of the Oasis-class ships, Oasis of the Seas introduced the Central Park concept and remains a benchmark for mega-cruise ships.
8. Allure of the Seas Cruise Ship – Royal Caribbean
Length: 1,187 ft (≈361 m)
Gross Tonnage: 225,282 GT
Passenger Capacity: ≈6,780
Crew: 2,200
Year Launched: 2010
Allure of the Seas combines size with diverse onboard activities, from themed neighborhoods to entertainment, making it a top choice for cruise enthusiasts.
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9. MSC World Europa – MSC Cruises
Length: 1,094 ft (≈333 m)
Gross Tonnage: 205,700 GT
Passenger Capacity: ≈6,762
Crew: 2,138
Year Launched: 2022
MSC World Europa is MSC Cruises’ largest ship to date, offering luxury, innovation, and eco-friendly technology in a stylish, contemporary design.
10. MSC World America – MSC Cruises
Length: 1,093 ft (≈333 m)
Gross Tonnage: 216,683 GT
Passenger Capacity: ≈6,764
Crew: 2,138
Year Launched: 2025
Set to debut soon, MSC World America will combine immense size with modern amenities and high-tech features, rounding out the top 10 largest cruise ships in the world.
