It's about 3,000,000,000 times as long as a Grain of Sand.
In other words, 3,490 kilometers is 2,790,000,000 times the length of a Grain of Sand, and the length of a Grain of Sand is 0.0000000003580 times that amount.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.000001250 kilometers. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 0.0151 kilometers in height.
It's about 30,000,000,000 times as tall as a sheet of Paper.
In other words, the height of a sheet of Paper is 0.0000000000300 times 3,490 kilometers.(for US Letter, a.k.a. ANSI A; 215.9mm by 279.4mm (8.5 in x 11 in); 20lb)
A single sheet of 20 lb, 8.5 inch x 11 inch paper is just 0.0000001000 kilometers thick. This style of paper weighs a mere 5 g per sheet.
It's about 35,000,000,000 times as long as a Strand of Hair.
It's about 35,000,000,000 times as tall as a Human hair, Strand of.
It's about 450,000,000,000 times as long as a Red Blood Cell.
In other words, the length of a Red Blood Cell is 0.00000000000210 times 3,490 kilometers.(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 600,000,000,000 times as long as a Nucleus (Cellular).
In other words, 3,490 kilometers is 580,000,000,000 times the length of a Nucleus (Cellular), and the length of a Nucleus (Cellular) is 0.00000000000170 times that amount.(for animal cell)
The nucleus of an animal cell measures an average of 0.00000000600 kilometers. The nucleus is the largest organelle in these cells, accounting for about 10% of the cell's total volume.
It's about 1,500,000,000,000 times as long as an E. coli Bacterium.
In other words, the length of an E. coli Bacterium is 0.000000000000590 times 3,490 kilometers.(Escherichia coli) (rod-shaped configuration)
An rod-shaped E. coli bacterium measures about 0.00000000200 kilometers in length. A staple of biology labs, E. coli can reproduce in as little as twenty minutes.