When the Queen Mary was built in 1934 she was one of the most technologically advanced ships of her day. The Queen Mary 2 was built later in 2003 and she is the world’s last ocean liner.
I recently disembarked a cruise onboard the Queen Mary 2 and have also stayed on board the Queen Mary which is currently a floating hotel located in California.
Both ships set sail almost 69 years apart so there are some considerable differences between the two.

How did the Queen Mary Compare to the Queen Mary 2?
The Queen Mary 2 is 15% longer than the original Queen Mary and 14% wider.
Both ships produce the same horsepower and can travel at the same maximum speed of 30 knots.
The Queen Mary 2 has an additional passenger deck compared to the original Queen Mary.
Despite being built decades apart, Queen Mary 2 isn’t any faster than the original Queen Mary. The sailings are no doubt smoother, but the maximum speed remains the same.
Queen Mary 2 vs Queen Mary – Length Comparison
| Cruise Ship | Length (Meters) | Length (Feet) |
| Queen Mary | 269m | 883ft |
| Queen Mary 2 | 310m | 1131ft |
The Queen Mary 2 is 15% longer than the original Queen Mary.
This is based on the length of the cruise ship as parallel to the waterline.

Queen Mary 2 vs Queen Mary – Width (Beam) Comparison
| Cruise Ship | Width (Meters) | Width (Feet) |
| Queen Mary | 36m | 118ft |
| Queen Mary 2 | 41m | 134ft |
The Queen Mary 2 is 14% wider than the original Queen Mary.
The beam of a cruise ship is the width of the cruise ship at the widest point. It’s usually measured where the hull meets the waterline.

Queen Mary 2 vs Queen Mary – Height and Deck Comparison
| Cruise Ship | Height (Meters) | Height (Feet) | Decks |
| Queen Mary | 55m | 180ft | 12 |
| Queen Mary 2 | 71m | 236ft | 13 |
The Queen Mary 2 is 30% taller than the original Queen Mary but she includes an additional passenger deck.
The largest cruise ship currently in operation is 75 meters (248 feet) high.
Building tall cruise ships limit the destinations which a cruise ship can travel to. Some large modern cruise ships are unable to sail to some ports due to bridges.

Queen Mary 2 vs Queen Mary – Gross Tonnage Comparison
| Cruise Ship | Gross Tonnage |
| Queen Mary | 80,000 |
| Queen Mary 2 | 149,000 |
The Queen Mary 2 has almost double the gross tonnage of the original Queen Mary.

Queen Mary vs Queen Mary 2 – Horsepower and Speed Comparison
A ship’s horsepower is the amount of power provided by the engines, one horsepower is equivalent to 746 Watts.
| Cruise Ship | Horsepower | Maximum Speed |
| Queen Mary | 160,000 | 30 knots (35 MPH) |
| Queen Mary 2 | 160,000 | 30 knots (35 MPH) |
The Queen Mary had four turbines in two engine rooms.
The Queen Mary 2 has four diesel engines and two gas turbines.
In reality, the Queen Mary 2 typically sails at a little over 26 knots (30 MPH).

Modern cruise ships still usually have a maximum speed of between 25-30 knots.
Both Ships Had/Have 3 Main Anchors
The Queen Mary had 3 anchors which could reach 1980 ft in total.
The Queen Mary 2 also has 3 anchors.
To learn more about cruise ship anchors, check out this post:
Cruise Ship Anchors – Function, Size, Weight, and Uses
Queen Mary vs Queen Mary 2 – Ship Ownership
The Queen Mary was built for the Cunard-White Star Line. Queen Mary 2 was built for Cunard, founded as we know it in 1947, when the White Star name was dropped.
Cunard owned 62% of the company and White Star Line 38%. Cunard bought out White Star Line in 1947 creating the Cunard brand that we know and love today.
Is The Queen Mary 2 The Sister Ship to The Original Queen Mary?
The Queen Mary 2 is not the sister ship to the Original Queen Mary.
She was built 69 years after the original Queen Mary was launched. Queen Mary 2 could be described as a much much younger relative, possibly a child of the Queen Mary.
To learn more about how Titanic compares to modern cruise ships, including how the ship compares to the Royal Caribbean and Cunard fleets check out this post:
Titanic vs a Modern Cruise Ship Fleet – Comparison with Photos!
Find out about the transatlantic crossing, I took on Queen Mary 2, following in the wake of famous Ocean Liners in times gone by below:
Before You Go
Queen Mary 2 is very different from cruise ships. Find out about the unique and interesting things you can do onboard here:
10 Things You Can Do on the Queen Mary 2 That You Can’t on Most Cruise Ships
Find out why modern cruise ships have more balconies than ever before here:
Why Cruise Ships Have More Balconies Than Ever Before

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