It's about as long as a Bacterium
It's about one-and-one-tenth times as long as a Mitochondrion
In other words, 0.00000200 meters is 1.06 times the length of a Mitochondrion, and the length of a Mitochondrion is 0.9430 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 one-third as long as a Cell's Nucleus
In other words, the length of a Cell's Nucleus is 3 times 0.00000200 meters.(for animal cell)
The nucleus of an animal cell measures an average of 0.00000600 meters. The nucleus is the largest organelle in these cells, accounting for about 10% of the cell's total volume.
It's about one-fourth as long as a Red Blood Cell
In other words, 0.00000200 meters is 0.270 times the length of a Red Blood Cell, and the length of a Red Blood Cell is 3.70 times that amount.(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 one-fiftieth as wide as a Strand of Hair
It's about one-fiftieth as tall as a sheet of Paper
It's about one-six-hundred-fiftieth as long as a Grain of Sand
In other words, the length of a Grain of Sand is 625 times 0.00000200 meters.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.00125 meters. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 15.10 m (49.55 ft) in height.