Scaled up to Star Destroyer volume, this would give it a weight of 11.9 billion kilograms. The ISS weighs 0.45 million kilograms, and I guesstimate an approximate total volume of 2,000 cubic meters (internal pressurized volume is 916 cubic meters). For comparison, the whole world produced 23.5 million GWh of electrical energy in 2014, which works out to 2,687 GWh continously (i.e., enough power to run 18.3 Star Destroyers).įor a sanity check, we can use the International Space Station. Each ship generates about 3.3 GW of electrity (enough to power continuously nearly three time-travelling DeLoreans from Back to the Future), i.e., 146.5 GW overall. It has two nuclear reactors and costs about $10.44 billion. Conveniently, it weighs about the same as the Allure of the Seas and is of a similar size and volume. Our second reference point is the Gerald R. Thus we can estimate its weight as 44.4 x 100 million = 4.44 billion kilograms. Hence the Imperial Star Destroyer is approximately 44.4 times the volume of the Allure of the Seas.
If you look at a picture of the ship and consider that cruise liners are fairly boxy, we can approximate its volume as 360 x 55 x 60 = 1.188 million cubic meters. The Allure of the Seasis 360 meters long, 60.5 meters at maximum width (47 meters at waterline), and 81.3 meters at maxmium overall height. Ships are a good analogy because they need to be light and strong to transport lots of stuff fuel-efficiently. Our first reference point is the world's largest cruise liner, the Allure of the Seas.
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