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That highly depends on the position of a human trying to reach terminal velocity in earth’s lower atmosphere.
Your number is about right for a human body in horizontal position with spread arms and legs.
Diving headfirst with flattened arms and legs can lead to a terminal velocity of more than double of the above scenario. That requires a lot more fall distance.

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finitebanjo@lemmy.world ⁨1⁩ ⁨day⁩ ago
Care to show your math on that? I found this reference for human drag coefficients when I did my math but it does not mention any spread positions.

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- zergtoshi@lemmy.world ⁨1⁩ ⁨day⁩ ago
  I leaned on …hubpages.com/…/Drag-Force-and-the-Terminal-Veloc…
  and specifically:
  …saymedia-content.com/…/drag-force-and-the-termin…
  I estimated the area of a body in vertical position as 1/4 of a body in horizontal position.
  With C going from 1 to 0.7 and A going from whatever to 1/4 of that, this results in a terminal velocity increase of over factor 2.
  
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