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Is 654 microns as long as a Red Blood Cell?

It's about 85 times as long as a Red Blood Cell
The length of a Red Blood Cell is about 7.50 microns.
(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.
There's more! See other comparisons to 654 microns...