It's about 2,000,000 times as heavy as a Poppy Seed
In other words, 623.689508750 grams is 2,100,000 times the weight of a Poppy Seed, and the weight of a Poppy Seed is 0.000000480 times that amount.(Papaver somniferum)
Fifty percent oil by weight, a poppy seed weighs approximately 0.0003 grams. The true pigment of a poppy seed is brown in color, while the characteristic bluish color is an optical illusion caused by a layer of calcium oxalate crystals refracting light rays.
It's about 10,000,000 times as heavy as a Grain of Salt
In other words, 623.689508750 grams is 10,700,000 times the weight of a Grain of Salt, and the weight of a Grain of Salt is 0.00000009350 times that amount.The mass of a grain of salt is approximately 0.00005850 grams. Salt consumption varies widely by country; the people of the United States consume a combined total of about 2,730,000,000 grams of salt each year.
It's about 0.00000006 times as heavy as The Eiffel Tower
In other words, 623.689508750 grams is 0.00000006180 times the weight of The Eiffel Tower, and the weight of The Eiffel Tower is 16,200,000 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (total weight)
The Eiffel Tower weighs approximately 10,100,000,000 grams. Architected to be quickly assembled, the Tower contains only 930 cu. meters of solid material.
It's about 0.00000005 times as heavy as The Brooklyn Bridge
In other words, 623.689508750 grams is 0.000000046820 times the weight of The Brooklyn Bridge, and the weight of The Brooklyn Bridge is 21,360,000 times that amount.(a.k.a. New York and Brooklyn Bridge) (Manhattan and Brooklyn, New York City, New York) (total weight)
The total weight of the Brooklyn Bridge is approximately 13,320,000,000 grams. In a promotional event to prove the bridge's stability shortly after it opened, entertainer P. T. Barnum led a parade of 21 elephants across it in May of 1884.
It's about 0.00000003 times as heavy as The Statue of Liberty
In other words, 623.689508750 grams is 0.00000002530 times the weight of The Statue of Liberty, and the weight of The Statue of Liberty is 39,500,000 times that amount.(a.k.a. Liberty Enlightening the World, a.k.a. La Liberté éclairant le monde) (total weight, including foundation)
The total weight of the Statue of Liberty, including her base is roughly 24,600,000,000 grams. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about 0.000000006 times as heavy as The CN Tower
In other words, 623.689508750 grams is 0.00000000528950 times the weight of The CN Tower, and the weight of The CN Tower is 189,050,000 times that amount.(a.k.a. La Tour CN, a.k.a. Canadian National Tower, a.k.a. Canada's National Tower) (Toronto, Canada)
The CN Tower weighs approximately 117,910,000,000 grams. The Tower is home to the world's highest glass floor — a viewing area that allows visitors to look straight down 342 m (1,120 ft) to the ground below.
It's about 0.000000003 times as heavy as The Sears Tower
In other words, 623.689508750 grams is 0.0000000030910 times the weight of The Sears Tower, and the weight of The Sears Tower is 323,500,000 times that amount.(officially "Willis Tower" as of 2009) (Chicago, Illinois)
The Willis Tower weighs approximately 201,800,000,000 grams. The outer wall surface of the Tower is covered with black anodized aluminum panels which would total 110,000 sq. m (28 acres) if laid out together.