It's about 0.000000002 times as heavy as a House
In other words, 315 miligrams is 0.00000000202 times the weight of a House, and the weight of a House is 495,000,000 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 156,000,000,000 miligrams, 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 460,000,000 miligrams.
It's about 0.0000000005 times as heavy as Christ the Redeemer (statue)
In other words, 315 miligrams is 0.000000000496 times the weight of Christ the Redeemer (statue), and the weight of Christ the Redeemer (statue) is 2,020,000,000 times that amount.(a.k.a. O Cristo Redentor, a.k.a. Christo redemptor) (Rio de Janeiro, Brazil)
Christ the Redeemer weighs 635,000,000,000 miligrams. 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 0.0000000003 times as heavy as a Tree (Sierra Redwood)
In other words, 315 miligrams is 0.00000000024 times the weight of a Tree (Sierra Redwood), and the weight of a Tree (Sierra Redwood) is 4,200,000,000 times that amount.(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 1,300,000,000,000 miligrams. 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 1,900,000,000,000 miligrams.
It's about 0.00000000003 times as heavy as The Eiffel Tower
In other words, 315 miligrams is 0.0000000000312 times the weight of The Eiffel Tower, and the weight of The Eiffel Tower is 32,100,000,000 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (total weight)
The Eiffel Tower weighs approximately 10,100,000,000,000 miligrams. Architected to be quickly assembled, the Tower contains only 930 cu. meters of solid material.
It's about 0.00000000003 times as heavy as The Brooklyn Bridge
In other words, 315 miligrams is 0.00000000002365 times the weight of The Brooklyn Bridge, and the weight of The Brooklyn Bridge is 42,280,000,000 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 13,320,000,000,000 miligrams. 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 0.00000000002 times as heavy as The Statue of Liberty
In other words, 315 miligrams is 0.0000000000128 times the weight of The Statue of Liberty, and the weight of The Statue of Liberty is 78,100,000,000 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 24,600,000,000,000 miligrams. 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 0.000000000003 times as heavy as The CN Tower
In other words, 315 miligrams is 0.0000000000026715 times the weight of The CN Tower, and the weight of The CN Tower is 374,320,000,000 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 117,910,000,000,000.00000000000000000000 miligrams. 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.