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Superyachts, Megayachts and Gigayachts

What defines a superyacht, a megayacht, and a gigayacht?

Superyachts, megayachts, and awe-inspiring gigayachts represent the zenith of maritime excellence.

In this article, we delve into the world of these extraordinary vessels, each setting a new standard for luxury and grandeur on the open water. From sleek exterior styling to lavishly upholstered interiors complete with spas, gyms, and impressive cinema rooms, we'll explore the unique features, the grandeur, and the allure of these sometimes gargantuan vessels.

Superyachts, Megayachts and Gigayachts: The Industry Evolution

The luxury yacht industry has undergone significant transformation over the past three decades. In the 1990s, vessels over 40 meters were considered exceptionally large. Today's market sees regular delivery of 100m+ gigayachts, with the largest private vessel, Azzam, measuring 180 meters. This growth reflects increasing global wealth concentration and the desire for ultimate privacy and luxury experiences.

The classification system itself has evolved to accommodate this growth. Traditional definitions often stopped at "superyacht," but the industry now recognizes distinct categories to properly classify vessels that can exceed the size of naval frigates. Modern gigayachts like REV Ocean (183m) and Azzam (180m) represent floating cities with crews exceeding 100 people and operating budgets rivaling small companies.

Yacht Classification Matrix

Category Length Range Beam Range Crew Size Gross Tonnage Price Range Annual Operating Cost Key Features
Yacht <24m (<78ft) 3–8m 0–5 <500 GT $100K – $5M 5–15% of purchase Owner operated, basic luxury
Superyacht 24–60m (78–197ft) 6–12m 6–15 500–3000 GT $5M – $50M 10–15% of purchase Professional crew, MLC compliance
Megayacht 60–100m (197–328ft) 10–18m 15–50+ 3000–8000 GT $50M – $500M 10–12% of purchase Multiple decks, helipad capability
Gigayacht 100m+ (328ft+) 15–25m+ 50–100+ 8000+ GT $500M – $2B+ 8–12% of purchase Ultimate luxury, global capability

Size Matters: How Do Superyachts, Megayachts and Gigayachts Compare?

Yacht size is measured by Length Overall (LOA), which is the maximum length of the vessel's hull including any structural extensions but excluding outboard motors, bowsprits, or other removable equipment. Gross tonnage measures internal volume. A 40m yacht might have 500 GT, while a 80m yacht could have 2,500 GT depending on beam and internal layout.

When it comes to these yacht types, there is no official size chart. Some shipbuilders refer to 45m (148ft) models as megayachts, although it would seem a vessel of this size fits within the superyacht category. 

Gigayacht is currently the largest category for private recreational vessels. Some naval architects discuss "terayachts" for hypothetical vessels over 200m, but no such private vessels exist yet.

To put it simply, it seems the terminologies are used to market a wide range of different-sized yachts. Whatever word you choose to describe them though, each nautical behemoth is sure to offer its own unparalleled level of luxury and workmanship to those lucky enough to step onboard.

What size yacht requires a professional crew?

Yachts 24 meters (78 feet) and larger typically require professional crew due to complexity of systems, safety requirements, and Maritime Labour Convention regulations that apply to commercial yachts over this length, However, larger yachts benefit from economies of scale in crew efficiency, fuel consumption per guest, and system maintenance, though absolute costs remain much higher than smaller vessels.

What's included in annual operating costs?

Annual operating costs include crew salaries and benefits, fuel, maintenance and repairs, insurance, mooring and port fees, management fees, provisioning, communications, and regulatory compliance costs.

How much does yacht crew cost annually?

Crew costs typically represent 30-50% of operating expenses: $300K-500K for superyachts, $2M-8M for megayachts, and $8M-20M+ for gigayachts, including salaries, benefits, training, and accommodation.

Do yacht values depreciate like cars?

Yachts depreciate approximately 10-15% per year for the first 3-5 years, then 5-8% annually. Well-maintained yachts from premium builders may hold value better, while unique or historic yachts can appreciate.

Let's take a look at how much each yacht upkeep costs.

Operating Costs Breakdown: Superyachts, Megayachts, Gigayachts

Expense Category Superyacht (%) Megayacht (%) Gigayacht (%) Description
Crew 30–40% 35–45% 40–50% Salaries, benefits, training
Fuel 15–25% 10–20% 8–15% Diesel, port charges
Maintenance 15–20% 15–20% 15–20% Repairs, refit, systems
Insurance 5–10% 5–8% 3–7% Hull, liability, crew
Mooring 8–15% 8–12% 5–10% Marina fees, anchorages
Management 5–8% 5–8% 5–8% Professional management
Other 10–15% 10–15% 10–15% Provisioning, communications

What is a Superyacht?

Superyachts are large, luxurious vessels. These remarkable watercraft typically measure over 24m (79ft) in length and offer a range of amenities, including large cabins, dining and living areas, and entertainment systems.

Definition of a Superyacht

  • Size: 24-60 meters (78-197 feet) in length
  • Operation: Professional crew required (6-15 members)
  • Purpose: Luxury recreation, extended cruising, entertaining
  • Cost Range: $5-50 million purchase, $500K-$7.5M annual operating
  • Regulations: MLC compliance mandatory, ISM Code, flag state requirements
  • Typical Features: Luxury interiors, water toys, advanced navigation, guest suites
  • Market: High-net-worth individuals, charter market
superyacht Sanlorenzo Steel
The Sanlorenzo 52m Steel has a superb level of design and space for its LOA
Main salon on a Sanlorenzo 52m Steel superyacht
The salon area onboard a Sanlorenzo 52m Steel

Designed to provide a lavish experience for their owners and guests, superyachts are not only private retreats but are also used for hosting events and cruising in style. In the yachting industry, superyachts represent a large part of the market. 

What is a Megayacht?

A megayacht is typically characterized by its impressive size of between 60m (197ft) and 100m (328ft). The vessels are packed full of luxurious features, making them a prominent symbol of opulence. What defines a megayacht is its ability to offer a high level of comfort and a vast array of amenities to its owners and guests.

Megayacht Definition 

  • Size: 60-100 meters (197-328 feet) in length
  • Operation: Large professional crew (15-50+ members)
  • Purpose: Ultra-luxury lifestyle, global cruising, major entertaining
  • Cost Range: $50-500 million purchase, $7.5M-$75M annual operating
  • Regulations: Full commercial vessel compliance, enhanced safety systems
  • Typical Features: Multiple decks, helicopter pad, spa, cinema, pool, tender garage
  • Market: Ultra-high-net-worth individuals, billionaires
superyacht Amels 272 running shot
The Amels 272 is fine example of contemporary megayacht design

Spacious cabins feature in addition to sophisticated interior design, gourmet dining areas, entertainment systems, and recreational amenities like swimming pools, jacuzzis, and water toys. Some even feature a helipad (or two). While not as large as gigayachts, they are designed to cater to the discerning tastes of their affluent clientele and offer a home-away-from-home experience on the water.

Can Superyachts and Megayachts Go Anywhere in the World?

Most superyachts are designed for global cruising but may have restrictions based on ice class, draft limitations, bridge clearances, or political considerations in certain regions.

Yacht Size Crew Size Port Requirements Operating Range
24–40m 6–10 crew Standard marinas Regional
40–60m 10–15 crew Large marinas Continental
60–100m 15–50 crew Superyacht facilities Global
100m+ 50+ crew Specialized facilities Unlimited

What is a Gigayacht?

Gigayachts are an extraordinary category of luxury vessel that pushes the boundaries of size. These immense vessels typically exceed 100m (328ft) in length, setting them apart as some of the largest privately owned yachts in the world. Gigayachts are the epitome of maritime luxury.

Gigayacht Definition

  • Size: 100+ meters (328+ feet) in length
  • Operation: Extensive crew (50-100+ members)
  • Purpose: Ultimate luxury lifestyle, global presence, major events
  • Cost Range: $500 million - $2+ billion purchase, $75M+ annual operating
  • Regulations: Maximum maritime compliance, commercial operations capability
  • Typical Features: Multiple pools, submarine bays, multiple helipads, hospitals, theaters
  • Market: Billionaire-class ownership, heads of state, royal families
Superyacht Flying Fox on the water
Superyacht AZZAM on water
The 180m AZZAM is 13,136GRT
Superyacht DILBAR on water
The 156m DILBAR is 15,917GRT

These remarkable vessels boast multiple decks, enormous cabins and suites, extravagant dining areas, world-class entertainment systems, spas, swimming pools, helipads, and even personal submarines. Gigayachts are custom-designed and meticulously crafted to cater to the desires and demands of ultra-high-net-worth individuals.

Owning or chartering a gigayacht is not merely a display of wealth but also a testament to the cutting-edge technology and design expertise of the yachting industry.

Regulatory Development: Comparing Superyachts, Megayachts and Gigayachts

Maritime regulations have struggled to keep pace with luxury yacht growth. The Maritime Labour Convention (MLC), implemented in 2013, represented the first major international effort to standardize crew working conditions on large yachts. Prior to MLC, crew working conditions varied dramatically based on flag state and owner preferences.

The International Maritime Organization (IMO) continues developing regulations specific to large yachts, recognizing they operate differently from commercial vessels despite similar sizes. The Large Yacht Code (LY3) and Passenger Yacht Code (PYC) represent efforts to create appropriate regulatory frameworks for vessels that blur the line between private and commercial operations.

Regulatory Complexity Relationships

Vessel Size Regulatory Requirements Compliance Costs Operational Complexity
<24m Basic Safety Low Owner Operation
24–60m MLC + ISM Medium Professional Crew
60–100m Commercial Standards High Management Company
100m+ Maximum Compliance Very High Full Organization

The Ultimate Value: How Do Superyachts, Megayachts and Gigayachts Compare?

Luxury yachts serve as symbols of ultimate success and privacy in an increasingly connected world. For ultra-high-net-worth individuals, yachts provide a mobile base for conducting business, entertaining, and maintaining privacy away from public scrutiny.

The yacht industry has also become a platform for showcasing cutting-edge design and environmental innovation. Many owners view their vessels as floating art pieces, commissioning renowned architects and artists to create unique experiences that push boundaries of what's possible on the water.

Owner Wealth Level Yacht Category Usage Pattern
Millionaire Superyacht Personal / Family Use
Ultra-HNW Megayacht Entertainment / Charter
Billionaire Gigayacht Global Lifestyle / Status

Summary

The article covers the key distinctions between yachts, superyachts, megayachts, and gigayachts. Here are the key points we addressed:

  • Megayachts are characterized by impressive size between 60m (197ft) and 100m (328ft), packed with luxurious features as symbols of opulence.
  • Industry consensus shows superyachts range from 37-60m, megayachts over 60m, and gigayachts over 90m (300ft).
  • The terms are used by boat builders and yacht brokers to classify luxury vessels by length, with each term applying to specific size ranges.
  • Superyachts represent a large part of the yachting market Superyachts, Megayachts and Gigayachts | YachtBuyer
  • More than just length plays a deciding role in classification.

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FAQ

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  • Estimated global fleet (as of 2025):

    • Superyachts (24-60m): ~6,000 vessels
    • Megayachts (60-100m): ~800 vessels
    • Gigayachts (100m+): ~150 vessels
  • A superyacht is a luxury private yacht that is generally over 24 meters (79 feet) in length. These vessels are characterized by high-end amenities, personalized interiors, crewed operation, and global cruising capabilities. They’re typically built for private owners but may also be available for luxury charters.

    Key features of superyachts:

    • Length: 24–60 meters
    • Full-time crew onboard
    • Private cabins, salons, dining areas
    • May include hot tubs, tender garages, and entertainment systems

    Alternative names: Large yacht, luxury yacht

  • Regulatory considerations:

    • MLC (Maritime Labour Convention): Applies to yachts 24m+
    • ISM Code: International Safety Management requirements vary by size
    • Flag state regulations: Different requirements based on yacht category
    • Port fees: Often calculated based on length and tonnage
    • Insurance classifications: Risk assessment varies by category
  • Common lengths by category:

    • Superyacht: 30-40m most popular
    • Megayacht: 65-80m most common
    • Gigayacht: 100-150m typical range
  • Purchase costs (approximate):

    • Superyacht: $5-50 million USD
    • Megayacht: $50-500 million USD
    • Gigayacht: $500 million+ USD

    Annual operating costs:

    • Generally 10-15% of purchase price annually
    • Includes crew, fuel, maintenance, insurance, mooring
  • A megayacht is a classification above a superyacht, typically exceeding 60 meters (197 feet) in length. These yachts feature more expansive amenities and facilities, sometimes rivaling boutique hotels in terms of design and service.

    Defining characteristics of megayachts:

    • Length: 60–90 meters
    • Helipads, cinemas, beach clubs, gyms, and elevators
    • Often accommodates 12+ guests and 20+ crew
    • Frequently custom-built for ultra-high-net-worth individuals

    Alternative names: Supermegayacht, ultra-luxury yacht

  • A gigayacht is the largest class of private yacht, often exceeding 90 meters (295 feet) in length. These vessels represent the pinnacle of custom marine engineering, with multi-deck layouts, extensive crew quarters, and facilities that may include spas, hospitals, and submarines.

    Core gigayacht attributes:

    • Length: 90+ meters (some exceed 180 meters)
    • Owned by royals, billionaires, or sovereign wealth funds
    • May include conference rooms, pools, helicopter hangars
    • Global range with advanced sustainability tech (hybrid propulsion, waste management systems)

    Alternative names: Supergigayacht, floating palace

  • Primary factors:

    • Gross tonnage and length overall (LOA): Main determining factor
    • Purpose: Must be private recreational use
    • Luxury level: Amenities and finish quality
    • Crew requirements: Professional crew necessity
  • While the terms are not universally standardized:

    • Every gigayacht is also a megayacht and a superyacht by definition.
    • However, not every superyacht qualifies as a megayacht or gigayacht.
    • Some shipbuilders and brokers use these terms for marketing, so actual thresholds may vary slightly.

    Why do these distinctions matter? These size-based thresholds assist in filtering yacht inventory, matching client preferences, or navigating charter logistics. Ultimately, the classification affects:

    • Crew and operational complexity
    • Insurance and docking requirements
    • Charter pricing and regulations
    • Engineering standards and maritime compliance 
  • Superyacht: Azimut Grande 35 Metri – stylish, nimble, under 40m

    Megayacht: Kismet (95m) – features a helipad, basketball court, and spa

    Gigayacht: Azzam (180m) – owned by UAE royalty, currently one of the largest yachts in the world