It's about one-five-hundred-thousandth as heavy as The Statue of Liberty
In other words, 50 kilograms is 0.000002030 times the weight of The Statue of Liberty, and the weight of The Statue of Liberty is 493,000 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 kilograms. 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 one-two-hundred-fifty-thousandth as heavy as The Brooklyn Bridge
In other words, 50 kilograms is 0.0000037540 times the weight of The Brooklyn Bridge, and the weight of The Brooklyn Bridge is 266,400 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 kilograms. 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 one-two-hundred-thousandth as heavy as The Eiffel Tower
In other words, 50 kilograms is 0.000004950 times the weight of The Eiffel Tower, and the weight of The Eiffel Tower is 202,000 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (total weight)
The Eiffel Tower weighs approximately 10,100,000 kilograms. Architected to be quickly assembled, the Tower contains only 930 cu. meters of solid material.
It's about one-twenty-five-thousandth as heavy as a Tree (Sierra Redwood)
In other words, the weight of a Tree (Sierra Redwood) is 26,000 times 50 kilograms.(a.k.a. Giant Sequoia, a.k.a. Sierran redwood, a.k.a. Wellingtonia, a.k.a. "Big Tree", Sequoiadendron giganteum)
The weight of wood in a Giant Sequoia is 1,300,000 kilograms. General Sherman, a specimen in Sequoia National Park in Visalia, California, is the largest tree in the world by volume, with an estimated weight of about 1,900,000 kilograms.
It's about one-fifteen-thousandth as heavy as Christ the Redeemer (statue)
In other words, the weight of Christ the Redeemer (statue) is 12,700 times 50 kilograms.(a.k.a. O Cristo Redentor, a.k.a. Christo redemptor) (Rio de Janeiro, Brazil)
Christ the Redeemer weighs 635,000 kilograms. The statue overlooks the city of Rio de Janeiro from atop the 709.9-meter (2,329 ft) granite peak in the Tijuca Forest National Park.
It's about one-three-thousandth as heavy as a House
In other words, 50 kilograms is 0.000321 times the weight of a House, and the weight of a House is 3,120 times that amount.(149 sq. m, single-level, unfurnished)
A 149 sq. m (1,600 sq. ft), single-story, unfurnished house (without extensive masonry) of the type commonly found in America would weigh approximately 156,000 kg, based on the weight of the included materials. In contrast, a yurt — a type of dwelling structure popular among nomadic peoples of East Asia — typically weighs less than 458 kg.
It's about one-two-thousandth as heavy as a Blue Whale
In other words, 50 kilograms is 0.000478 times the weight of a Blue Whale, and the weight of a Blue Whale is 2,090 times that amount.(Balaenoptera musculus)
Blue whales weigh between 73,000 and 136,000 kg. The largest mammal to have ever lived, blue whales feed almost exclusively on krill — tiny invertebrates weighing about 0.001 kilograms each.