It's about one-six-hundred-thousandth as long as The Great Wall of China (total).
In other words, 1,500 centimeters is 0.00000169 times the length of The Great Wall of China (total), and the length of The Great Wall of China (total) is 592,000 times that amount.(长城, 長城, Chángchéng, a.k.a. 万里长城, 萬里長城, Wànlǐ Chángchéng) (a.k.a. "The long wall of 10,000 Li") (from Shanhaiguan through Lop Nur, China) (total length, all branches)
The Great Wall of China, including all branches and trenches, is 885,000,000 centimeters. Built and maintained in multiple sections over about eleven centuries, the Great Wall is currently suffering the effects of erosion, especially in the older sections made primarily out of mud.
It's about 2,000,000 times as long as a Red Blood Cell.
In other words, the length of a Red Blood Cell is 0.0000005 times 1,500 centimeters.(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 2,500,000 times as long as a Nucleus (Cellular).
In other words, the length of a Nucleus (Cellular) is 0.0000004 times 1,500 centimeters.(for animal cell)
The nucleus of an animal cell measures an average of 0.0006 centimeters. The nucleus is the largest organelle in these cells, accounting for about 10% of the cell's total volume.
It's about 7,500,000 times as long as an E. coli Bacterium.
It's about 8,000,000 times as long as a Mitochondrion.
In other words, 1,500 centimeters is 7,980,000 times the length of a Mitochondrion, and the length of a Mitochondrion is 0.000000125 times that amount.(Eukaryotic; average)
A mitochondrion measures between 0.75 and 3 micrometers (Âµm). The mitochondrion is commonly referred to as the powerhouse of the cell, responsible for the generation of ATP. The size, shape, and distribution of mitochondria varies widely, with human liver cells each having 1,000 to 2,000 mitochondria.
It's about 0.00000004 times as long as The Distance from Earth to the Moon.
In other words, 1,500 centimeters is 0.00000003901815 times the length of The Distance from Earth to the Moon, and the length of The Distance from Earth to the Moon is 25,629,100 times that amount.(a.k.a. Luna) (median of semi-major axis, or apigee, and semi-minor axes, or perigee)
The orbit of the Moon around the Earth is elliptical, with an average distance of 38,443,650,000 centimeters from center-to-center. About 428.376 kg of moon rock have been cataloged on the Earth, from the American Apollo and Soviet Luna Programs, and from samples that have been extracted from meteorites.
It's about 10,000,000,000 times as long as a Glucose Molecule.
In other words, the length of a Glucose Molecule is 0.0000000001 times 1,500 centimeters.(C6H12O6, a.k.a. grape sugar) (open chain form)
Am individual glucose molecule measures 0.00000015 centimeters in its open-chain form. Glucose is the most common fuel source of energy in human biology, with 3.75 kilocalories of energy per gram.