It's about 100,000,000,000,000,000 times as tall as The Space Needle.
In other words, 641 parsecs is 107,000,000,000,000,000.000000000000000000000 times the height of The Space Needle, and the height of The Space Needle is 0.000000000000000009350 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 0.000000000000005960 parsecs tall. With a track-and-wheel design inspired by railroad mechanics and a precisely-configured balance, the restaurant near the top of the space needle requires just a 1.5 hp motor to rotate at speeds of about 0.053 kph (0.033 mph).
It's about 2,499,999,999,999,999,689,621,504 times as long as a Red Blood Cell.
In other words, the length of a Red Blood Cell is 0.000000000000000000000000380 times 641 parsecs.(a.k.a. RBCs, a.k.a. haematids, a.k.a. erythrocyte, a.k.a. erythroid cells, a.k.a. red blood corpuscles) An average Red Blood Cell measures 7.5 µm (micrometers) in diameter. An average human has 20 - 30 trillion red blood cells in their body and each cell completes a circulatory lap in about 20 seconds.
It's about 199,999,999,999,999,983,222,784 times as tall as a Human hair, Strand of.
In other words, 641 parsecs is 199,999,999,999,999,983,222,784.00000000000000000000000000 times the height of a Human hair, Strand of, and the height of a Human hair, Strand of is 0.00000000000000000000000500 times that amount.(average)
A strand of human hair averages 99 µm (micrometers), with blond hair being the finest and black hair the thickest. On a healthy scalp, each strand of hair will last up to 6 years.
It's about 100,000,000,000,000,000 times as tall as The Singapore Flyer (Ferris wheel).
In other words, 641 parsecs is 120,000,000,000,000,000.00000000000000000000 times the height of The Singapore Flyer (Ferris wheel), and the height of The Singapore Flyer (Ferris wheel) is 0.000000000000000008330 times that amount.(a.k.a. 新加坡摩天观景轮, a.k.a. சிங்கப்பூர் ஃப்ளையர், a.k.a. Pelayang Singapura) (Marina Centre, Singapore)
The Singapore Flyer has a height of 0.000000000000005350 parsecs. Based on recommendations from Feng Shui masters, the wheel was re-engineered to spin in the opposite direction five months after it began operating.
It's about 400,000,000,000,000,000 times as tall as The Chicago Water Tower.
In other words, 641 parsecs is 422,000,000,000,000,000.000000000000000000000 times the height of The Chicago Water Tower, and the height of The Chicago Water Tower is 0.000000000000000002370 times that amount.(Chicago, Illinois)
The Chicago Water Tower is 0.000000000000001520 parsecs tall. The tower's architecture was one source of inspiration behind the design of White Castle fast-food restaurants beginning with "Building Number 8," a prefabricated structure built in Minneapolis, Minnesota in 1936.
It's about 40,000,000,000,000,000 times as tall as The Shanghai World Financial Center.
In other words, 641 parsecs is 40,200,000,000,000,000.00000000000000000000 times the height of The Shanghai World Financial Center, and the height of The Shanghai World Financial Center is 0.00000000000000002490 times that amount.(上海环球金融中 上海環球金融中心, Shànghǎi huánqiú jīnróng zhōngxīn) (a.k.a. SWFC) (Shanghai, China) (to spire)
The Shanghai World Financial Center is 0.00000000000001590 parsecs tall to its roof. It is home to both the world's highest hotel (on its 79th through 93rd floors) and the world's tallest observation deck (on its 100
It's about 5,000,000,000,000,000,000 times as long as a Beetle (Volkswagen).
In other words, 641 parsecs is 4,849,000,000,000,000,000.00000000000000000000000 times the length of a Beetle (Volkswagen), and the length of a Beetle (Volkswagen) is 0.00000000000000000020620 times that amount.(1964 model) (a.k.a. Volkswagen 1200, a.k.a. Käfer)
A 1964 Volkswagen Beetle measures 0.00000000000000013220 parsecs. As the longest continuously-produced automobile design — in production for 75 years between 1938 and 2003 — the Beetle was voted the most fourth-most influential car of the twentieth century by the Global Automotive Elections Foundation.